Best iOS Apps for Supplement Tracking (2026 Edition)

The best supplement tracking app is not the one with the most features. It is the one you still open on day 14, after the novelty wears off and your week goes sideways. That bar is surprisingly hard to clear — most people install a tracker, log for four days, and quietly stop. The gap between the apps that survive and the ones that die in your Utilities folder comes down to three things: how fast you can log a dose, whether the app checks for interactions you would not otherwise catch, and whether the data it collects can still answer a real question at the end of the week.

This guide ranks the top iOS supplement trackers available in 2026, compares them on the criteria that actually predict long-term use, and shows where Unfair fits in the landscape. If you are specifically worried about overlapping ingredients or supplement–drug conflicts, start with the interaction checks section below — it is the single most common reason to reach for a dedicated app over Apple's built-in tools.

Top picks for 2026

1. [Unfair](/) — Editor's pick for n-of-1 experimentation. Stack-first, evidence-weighted, HealthKit-native, one-tap dose logging. Free; Pro available.
2. SuppCo — Best brand-quality scoring. 160K+ product database, proprietary TrustScore for 500+ brands, StackScore audit, 80+ goal protocols. Free; Pro from $39.99/yr.
3. SuppTrack — Best barcode scanner. 189K+ products across 6K+ brands, nutrient aggregation, goal-based stacks. Free; Annual $14.99, Lifetime $59.99.
4. Apple Medications — Best free native option. Built into iOS 16+ and watchOS 9+, drug-interaction checking against your pill list, Watch complications. Free.
5. Medisafe — Best for complex Rx + supplement schedules. Multiple daily reminders, cycling protocols, refill alerts, Watch support. Free; Premium subscription.
6. Fuel Nutrition — Best nutrition-based supplement logging. Rolls every supplement into a unified daily micronutrient panel across every nutrient HealthKit tracks, with conversational AI entry and adaptive macro plans. Free; Premium subscription.

Honourable mentions below include Bearable (symptom correlation), MyTherapy (pill + mood logging), Pillar (simplest reminders), and SuppleMindHQ (AI-timed reminders).

Quick comparison at a glance

Prices reflect App Store listings at time of writing; confirm on the App Store before subscribing because pricing varies by region.

Choose based on what you are actually solving

A supplement tracker is really three products in one trench coat — a reminder, a safety check, and an analysis tool. The right app depends on which problem is costing you the most.

You only take one or two things and just want to stop forgetting. Use Apple Medications or Pillar. Both are free, both live on your Lock Screen, neither will punish you for skipping a day. If you ever add a prescription, Apple checks drug interactions against a Rx database — a real feature that few supplement-first apps match.

You are running a large stack and worried about overlapping ingredients. Use SuppCo or Unfair. SuppCo's TrustScore + StackScore combination flags when a multi-ingredient formula is duplicating a stand-alone product in your routine. Unfair adds supplement-to-outcome tracking on top so you can tell which overlap actually matters.

You take prescription medication alongside supplements. Use Medisafe or MyTherapy as your primary reminder app and add supplements there. Both were built for Rx adherence, both do drug-interaction checks, both have caregiver sharing. A supplement-first app without a drug-interaction database is a downgrade for this use case.

You want to correlate supplements with sleep, HRV, or mood. Use Bearable (for manual symptom ratings) or Unfair (for HealthKit-native correlation with wearable data). Generic food trackers will not do this — supplements sit in a field they were not built for.

You want your supplements counted inside a full nutrition picture. Use Fuel Nutrition. Supplements are logged alongside food and roll into a single daily panel for every micronutrient HealthKit tracks — vitamin D, magnesium, iron, B-complex, omega-3, calcium, zinc, potassium, sodium, and the rest of the HealthKit nutrition set. This is the right layer if the question you are trying to answer is "am I actually hitting my RDAs from food plus supplements combined?" Pair it with a dedicated reminder app if dose-time reminders matter to you.

You want evidence-weighted recommendations, not just logging. Use Unfair. No other app in this list ranks or scores a stack against the human-trial evidence base and pairs it with n-of-1 review prompts at the end of each cycle.

What separates a great supplement tracker from a mediocre one

Most apps technically do the same thing. In practice, six criteria predict whether you will still be using it in a month.

Notice what is not on this list — social feeds, streak badges, a "largest database in the category" claim. Those are nice-to-haves. The six criteria above determine whether the app earns its Home Screen slot.

The apps, reviewed

Unfair — Editor's pick for n-of-1 experimentation

Unfair is built for people running protocols, not people logging pills. The difference shows up in every screen. Stacks are first-class objects linked to a goal and a review window. Every logged dose ties to a structured response label, so a weekly review produces sentences like "you took your sleep stack 6 of 7 days; sleep-onset latency moved from 28 to 19 minutes." The evidence graph behind each recommendation is based on human trial data with tier ratings, not a supplement-company press release.

On the criteria above:

• Logging speed — Prefilled stack for the day, one-tap confirmation per dose window, Siri Shortcut and widget support.
• Interaction checking — Evidence-weighted flags for overlapping ingredients, stimulant stacking, and common supplement-drug conflicts, tied into the stack-mistakes pillar.
• Brand quality signal — Third-party certifications surfaced on product entries; users can mark preferred brands.
• Reminder flexibility — Dose windows, not fixed alarms. Reminders move with your dose windows and cycles, and cycle-aware so on/off weeks behave correctly.
• Stack analytics — Outcome proxies (subjective and objective) linked to each stack; weekly review turns raw logs into a short list of adjustments.
• Data portability — HealthKit read + write for medications, supplements, and outcome proxies; CSV export for logs.

Pricing is a free tier with the full daily tracking loop; Pro adds deeper analysis, unlimited stacks, and priority library updates. The trade-off versus SuppCo or SuppTrack is database breadth — Unfair's product catalog is curated and indexed by evidence, not by barcode scans, which is deliberate. If your primary job-to-be-done is "scan any bottle in a store," SuppCo or SuppTrack wins. If it is "tell me whether my stack is actually moving my outcomes," Unfair is the one that streamlines your tracking end-to-end.

SuppCo

SuppCo is the category leader on App Store signal — 4.8/5 across roughly 18K ratings at time of writing — and the first app most people find when they search. The product's real differentiator is not the tracker; it is the TrustScore quality rating across 500+ brands (based on 29 attributes including third-party testing, label accuracy, and excipients) and the StackScore that rates your assembled routine against goal protocols. 80+ expert-built protocols cover gut health, longevity, women's health, and similar targets.

What it does well. Brand-quality signal is best-in-class. Barcode scan against a 160K+ database is fast. The daily schedule is clean and the protocol library is a useful starting point for beginners.

What it lacks. Drug-interaction checking is limited compared to Rx-first apps like Medisafe. Outcome tracking is shallow — the app tells you what you took, not whether it worked for you. HealthKit is read-only; doses do not write back for correlation with wearables.

Pricing. Free with significant features; SuppCo Pro starts at $39.99/year (see the App Store listing).

Best for. Users who care most about brand quality and want an opinionated starting protocol.

SuppTrack

SuppTrack positions around database size (189K+ products, 6K+ brands, 5,800+ ingredients) and barcode scanning accuracy. The ingredient-level nutrient aggregation view is genuinely useful — tap any ingredient in your daily summary to see cumulative dose across every product in your stack, which catches accidental overlaps (a multivitamin + a separate B-complex is the classic trap).

What it does well. Scanner coverage and accuracy. Nutrient aggregation per ingredient. Stacks and reminders are straightforward to set up.

What it lacks. No drug-interaction database, no brand-quality signal, no outcome tracking. The app is a well-built logger that stops at the log.

Pricing. Annual subscription $14.99, Lifetime $59.99 (see SuppTrack's App Store listing).

Best for. Scanner-first loggers who want a large database and do not need outcome analysis.

Apple Medications (built into iOS 16+)

Apple's free, native Medications app is the under-sung option in almost every third-party roundup. It handles supplements the same way it handles prescriptions — name, dose, schedule, reminders on iPhone and Apple Watch, and a drug-interaction check against its Rx database when you add prescription medication alongside.

What it does well. Free, native, reliable reminders with Watch complication support, automatic drug-interaction warnings for Rx items, and data stored in HealthKit by default. No ads, no upsell, no account.

What it lacks. No supplement-specific brand database, no stack-level analytics, no outcome tracking. The interaction check is Rx-focused — it does not warn you about stacking two stimulants or overlapping iron sources.

Pricing. Free. Requires iOS 16 or later and a compatible iPhone or Apple Watch.

Best for. Users with a simple routine (one daily multi, a single Rx) who want the minimum viable tool without a subscription.

Medisafe

Medisafe has over a decade of Rx-reminder track record, and the reliability shows. Complex schedules — multiple times per day, alternating doses, cycling protocols — behave correctly. The Pillbox view is fast, the Apple Watch experience is one of the best in the category, and the drug-interaction database is the real thing (same data source a pharmacist uses, not a hand-curated list).

What it does well. Complex scheduling, Rx-grade interaction checking, caregiver sharing, refill alerts.

What it lacks. Supplement-first features (brand-quality scoring, protocol library) are thin; supplements are treated as one more pill type rather than a category with its own logic.

Pricing. Free tier covers the core reminder loop; Medisafe Premium adds meds-refill tracking, health reports, and family features.

Best for. Users whose stack is mostly prescriptions plus a few supplements, or caregivers managing someone else's routine.

Fuel Nutrition — Best nutrition-based supplement logging

Fuel Nutrition is a nutrition-first app that treats supplements as ingredients in the same daily panel as food. When you log vitamin D3, magnesium glycinate, or an omega-3 capsule, the nutrients roll into the same running total as breakfast, lunch, and dinner — across every micronutrient HealthKit supports, not just a handful of vitamins. That is a materially different premise from dedicated supplement trackers, which record "you took it" but never resolve the product back into a nutrient count that matters at the meal level.

Fuel's conversational AI logging is the mechanism that makes this work. You can scan, snap a photo, or describe what you took in plain language, and the AI resolves it into specific ingredients with doses. You can correct it the same way ("that was the 5,000 IU version, not the 2,000"), so the nutrient panel updates without a trip through a settings screen. An adaptive daily plan recalculates targets based on your weigh-ins, activity, and adherence, and a weekly review turns the previous seven days into a short list of adjustments.

What it does well. Unified food + supplement micronutrient roll-up across the full HealthKit nutrition surface, conversational AI logging that you can correct in plain language, adaptive daily targets, weekly coaching review, nutritionist-built recipes with macro scaling, HealthKit read + write.

What it lacks. No stack-level adherence analytics in the supplement-experiment sense, no interaction checks, no opinionated supplement reminders. The supplement loop is an extension of food tracking, not a replacement for a dose reminder.

Pricing. Free tier covers daily tracking; Premium subscription adds the adaptive plan, weekly coaching loop, and advanced analytics. Confirm current pricing on the Fuel Nutrition App Store listing.

Best for. Users whose real question is "am I getting enough of each nutrient from food plus supplements combined?" and who want the answer in one place rather than stitched together across a food tracker and a separate pill logger.

Bearable

Bearable is a symptom tracker with supplement-logging bolted in. The reason it belongs on this list is that correlation — "did magnesium actually improve my sleep?" — is the hardest thing to get out of a pure logger, and Bearable is the most approachable tool for producing that kind of answer on iOS.

What it does well. Customizable symptom ratings, factor correlations (sleep, mood, energy, pain vs. supplement intake), approachable charts.

What it lacks. Not a supplement database — you enter products manually. No interaction checking, no brand signal. Adherence analytics are thin compared to dedicated trackers.

Pricing. Free tier plus Premium subscription for unlimited factors and deeper exports.

Best for. Users whose primary question is "which supplements are actually changing how I feel?"

MyTherapy

MyTherapy is the quiet, long-running workhorse in the medication-reminder category — 4.6/5 across 225K+ reviews between iOS and Android. It handles pills, vitamins, and supplements identically, adds a brief mood and symptom diary on confirmation, and exports a PDF health report that clinicians actually read.

What it does well. Reliable reminders, mood/symptom diary on log confirmation, PDF health report export.

What it lacks. No supplement database, no interaction checks at parity with Medisafe, no stack-level analytics.

Pricing. Free with optional Premium features.

Best for. Users who want a pill reminder that also nudges a short daily diary entry for later review.

Pillar

Pillar's entire pitch is simplicity. Add supplements, set reminder times, tap to log. The morning stack takes about ten seconds to confirm. Weekly summaries show adherence and nothing else.

What it does well. The fastest "set it up in one sitting and never touch settings again" experience in the category.

What it lacks. No effect tracking, no interaction checking, no database. Pure compliance, nothing else.

Pricing. Free with optional Premium.

Best for. Users who are already tracking outcomes somewhere else (a journal, Bearable, Unfair) and want Pillar to handle only the reminder layer.

SuppleMindHQ

A newer entry pitching AI-timed reminders — the scheduler analyzes your stack, goals, and daily routine to suggest dose times, with quiet hours, intelligent snooze, and low-stock refill alerts. Free tier is limited to three supplements, which is the most honest free-tier cap in the category (most competitors give you the full feature surface and paywall analytics instead).

What it does well. AI scheduling heuristics, refill alerts, HealthKit insights card with supplement-relevance hints.

What it lacks. Small database, minimal interaction checking, limited review history. The app is young and the feature set is still forming.

Pricing. Free (3 supplements), $6.99/mo, $39.99/yr, $129.99 lifetime.

Best for. Users whose primary complaint is "I never get reminders at the right time" and who want the app to do the scheduling for them.

Deal breakers — what to walk away from

A feature list tells you what an app can do. These signals tell you it will not survive the second week.

• Aggressive upsells between log confirmations. Every tap that opens a paywall instead of completing the log will cost you adherence.
• No export. You are building a dataset about your body. If you cannot get it out, you do not own it.
• Manual name-and-dose entry every single time. If the app cannot remember what you take daily, it is a notepad.
• No ingredient breakdown on multi-ingredient products. Apps that accept "Formula X — 2 capsules" without breaking out each ingredient cannot do overlap checks and should not claim to.
• Unverified community database. Brand-quality claims that come from user submissions, with no verification layer, are worse than no signal at all.
• No distinction between compliance and outcomes. An app that can only tell you "you logged" but not "it worked" is half of a supplement tracker.

What every app in this category is still missing

Even the best tools share a blind spot. Tracking apps treat supplements as isolated entries — log creatine, omega-3, and magnesium as separate events with no connection to each other or to your goals. A recommendation-aware tracker connects each log to a protocol. When you log creatine, that entry is linked to your muscle-gain stack, your adherence rate for that stack, and your response labels for the outcomes you are tracking (strength, recovery, body composition). Instead of scrolling a list of timestamps, you see: "you took your muscle-gain stack 6 of 7 days this week; recovery labels improved from 'sore' to 'normal' over the past two weeks."

That kind of insight requires a tracking app that understands stacks as protocols, not lists of pills. It is the advanced capabilities gap that motivated Unfair in the first place, and it is why the complete guide to supplement stacks treats ranked output and recommendation ranking as the work product of a tracker, not a charting feature.

Comparison pages by workflow

Use this table when you already know the app you are comparing against. The point is not to force every user into the same tool; it is to choose the layer that matches the job.

How to test a tracking app in 7 days

Do not commit to an app based on screenshots or star ratings. Run a structured 7-day test with your actual stack.

Day 1–2. Speed test. Log your full daily protocol (morning, midday, evening if applicable). Time yourself. If logging takes more than 30 seconds total per day, that friction will compound over weeks.

Day 3–4. Disruption test. Intentionally let a dose window pass without logging. Does the app prompt you to backfill? Can you easily log a missed or late dose? If catching up requires significant effort, the app penalizes real life.

Day 5–6. Edit and correction test. Go back and change a dose amount, add a response note, or correct a wrong time. If editing past logs is difficult or impossible, your data will accumulate errors that undermine the weekly review.

Day 7. Review test. Sit down and try to answer these questions from the app's analytics:

• What was my adherence rate this week?
• Were there patterns in my response labels (energy, sleep, focus)?
• Which supplements did I skip most often, and on which days?
• Did the app flag any ingredient overlap or interaction?

If you cannot answer these in under two minutes, the app's analytics are not serving you.

What to look for at the end of 7 days

Why logging speed is the criterion that compounds

Behavioural research consistently shows that reducing the number of steps in a target behaviour increases the probability of habit formation.¹ For supplement tracking, each additional tap or field is a friction point. Apps that require you to type a supplement name, select a dose from a dropdown, enter a time, and save create four friction points per entry. Apps that present your routine stack as a prefilled list and confirm with a single tap create one.

Over 30 days, the difference between a 5-second log and a 30-second log is the difference between 2.5 minutes and 15 minutes of total logging time. That sounds small, but the psychological weight of "I have to log my supplements" scales with perceived effort, not actual minutes.² This is why Apple Medications and Pillar can outperform fuller-featured apps for users who only need reminders — their single job runs fast, and the rest of the app does not get in the way.

How Unfair fits in

Unfair is built around protocol-aware tracking. Supplements are organized by stack, each stack is linked to a goal, and each logged dose connects to structured response labels. Daily logging is prefilled based on your active protocol and confirmable in a single tap. Missed doses are prompted, not ignored, and response labels are structured so they produce usable trend data at review time. The app is iOS-first by design — HealthKit, local notifications, Shortcuts, and iOS 26 features are why it exists rather than being a cross-platform afterthought.

Unfair does not try to track your calories, steps, or water intake. It tracks your supplement protocol and whether that protocol is producing the outcomes you defined. That focus is the trade-off — less breadth, more depth for the specific job of supplement experimentation. For users who already live in Fuel Nutrition or MyFitnessPal for nutrition and need a dedicated layer for stack-level analysis and outcomes, Unfair is designed to sit alongside those tools, not replace them — the nutrient roll-up lives in your nutrition app; the protocol, the adherence analytics, and the n-of-1 review live in Unfair.

Continue with Supplement Tracking Best Practices, AI-Assisted Dose Logging, and Weekly Stack Planning That Sticks, or read the sister pillars on supplement stack mistakes to avoid and dose windows and cycles.

References