Comparison

Supplements AI vs Fair Interval Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Supplements AI

Optimize your health routine with this intelligent supplement tracker. It creates personalized schedules, reminds you of doses, and analyzes potential interactions and synergies to maximize benefits. Gain insights into how your supplements impact your well-being and identify potential nutrient deficiencies.

Highlights
  • Personalized supplement schedule
  • Smart reminder notifications
  • Vitamin and mineral tracking
  • Synergy and interference analysis
  • Meal-aware planning
  • Well-being and performance tracking
  • Nutrient deficiency identification
Features
Read full description

Supplements AI – The Smart Supplement Tracker Taking supplements is an investment in your health. But without the right plan, that investment can lose its impact. Supplements need to be taken at the right time, in the right combinations, and with the right schedule to truly work. That’s where Supplements AI comes in: the ultimate Supplement Tracker that helps you take control of your routine, optimize absorption, and make sure you’re really getting the benefits you expect. Track your supplements with confidence Supplements AI is not just a simple pill reminder. It’s a complete Supplement Tracker that adapts to your life. The app builds a personalized Supplement Schedule and helps you stay consistent every day. With smart features, you’ll always know: • Timeline view: see exactly when to take each supplement during the day for optimal absorption. • Supplement Reminder notifications: intelligent alerts that adjust to your daily rhythm so you never miss a dose. • Vitamin Tracker: log your vitamins and minerals, and keep an organized view of your supplement stack. • Daily log: record each intake to build long-term consistency and improve results. Optimize your supplement schedule Not all supplements should be taken together. Some nutrients boost each other’s effects, while others reduce absorption if combined. Supplements AI automatically analyzes your supplement stack and builds the best plan for you: • Synergies maximized: pair supplements that work better together, like vitamin D and magnesium. • Interferences avoided: prevent negative interactions between nutrients. • Meal-aware planning: know which supplements should be taken with food and which are best on an empty stomach. • Research-based dosage: get access to recommended dosage ranges backed by scientific studies. Insights that go beyond tracking Taking a supplement is one thing. Knowing if it truly works for you is another. With Supplements AI, you get more than a tracker – you get insights. • Well-being tracking: log daily mood, energy, focus, sleep, and productivity. • Correlation analysis: see how your supplements affect your performance and well-being over time. • Personal feedback loop: understand if your routine is actually helping you reach your goals. Detect your nutrient deficiencies Sometimes the biggest challenge is knowing which supplements you actually need. Our Nutrient Checkup is based on the latest scientific studies and helps identify potential nutrient deficiencies based on your diet, lifestyle, and habits. • Personalized recommendations for vitamins and minerals. • Science-driven probability scores for deficiencies. • A clear picture of which supplements are most likely to benefit you. Always improving – Supplement Scanner coming soon Choosing the right product on the shelf can be overwhelming. Soon, Supplements AI will launch a Supplement Scanner: simply scan a label or barcode to see product quality, dosage, and whether it fits your personalized plan. This feature will make Supplements AI not just a tracker, but your all-in-one supplement companion. Why choose Supplements AI? • Smart Supplement Tracker: structured schedules, not guesswork. • Vitamin & Supplement Reminder: intelligent notifications to keep you consistent. • Nutrient Deficiency Detection: know what your body may actually need. • Supplement Insights: discover if your stack is really making a difference. • Science-backed knowledge base: every supplement profile includes description, benefits, dosage, and risks. Whether your goal is better focus, improved recovery, deeper sleep, or overall well-being, Supplements AI gives you the tools to make your supplements work for you. Don’t waste your supplements. Make them count. Download Supplements AI today and take control of your health with the most advanced Supplement Tracker on the App Store. Terms of use: https://supplements-ai.com/terms

About

Fair Interval Timer

Features
Read full description

Fair Interval Timer is a clean, fast, beautiful interval timer for HIIT, Tabata, circuits, boxing rounds, and EMOM — without the nonsense. No subscriptions. Just intervals. Most interval timers are bloated, ugly, or locked behind a monthly paywall. This one is honest and simple: configure your workout and start training in seconds. WHAT MAKES IT FAIR • No subscriptions — ever. • Your first workout is free. • After that, free users watch ONE short ad before a workout — never during. • Remove ads forever with a single €4.99 purchase. • No account, no sign-up. Your data stays on your device. BUILT FOR TRAINING • Big, high-contrast timer you can read across the room. • Clear WORK / REST / ROUND REST phases, each with its own color. • A 10-second GET READY lead-in so you're never caught off guard. • "Next up" shows what's coming and how long it lasts. • Sound cues: countdown ticks, end-of-round bell, and a finish chime. • Optional warm-up and cooldown, and a vibration option. • Keeps the screen awake during your workout. FAST SETUP • Quick-start templates: HIIT 40/20, Tabata 20/10, Strength Circuit 45/15. • Build your own: work, rest, exercises per round, rounds, round rest. • Save presets and repeat past workouts in one tap. • Local workout history. Simple, sporty, premium. No subscriptions. Just intervals.

Screenshots

Supplements AI4 screens
Fair Interval Timer4 screens

Verdict

The call

The clearest difference is ads: Supplements AI at none against Fair Interval Timer's shown. Supplements AI also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Supplements AI sells 4 in-app purchases, starting at $4.99 per month and Fair Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Supplements AI ships an update every 4 days, Fair Interval Timer every 5 days. The most recent releases landed on September 15, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 8 level
Supplements AI versus Fair Interval Timer: the parameters behind the verdict, then further details
ParameterSupplements AIFair Interval Timer
PriceFreeFree
Rating4.3 (122 ratings) — better—
Positive reviews54.8% of reviews—
Number of ratings122 — better—
Update frequencyEvery 4 days — betterEvery 5 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size54 MB57 MB
Age rating17+4+
DeveloperAdrien Pierre GrusseLeander Joshua Kilian

In-app purchases

4 purchases

Supplements AI

Subscriptions4
  • Supplements Premium Monthly$4.991 Month
  • Supplements Premium Monthly$5.991 Month
  • Supplements Premium Yearly$29.991 Year
Show 1 more
  • Supplements Premium Yearly$39.991 Year
1 purchases

Fair Interval Timer

One-time1
  • Remove Ads Forever$3.99

Questions

Is Supplements AI free?
Supplements AI is free to download, with in-app purchases available.
Is Fair Interval Timer free?
Fair Interval Timer is free to download, with in-app purchases available.
Do Supplements AI or Fair Interval Timer have ads?
Fair Interval Timer shows ads; Supplements AI does not.
Which is updated more often, Supplements AI or Fair Interval Timer?
Supplements AI ships an update every 4 days, and Fair Interval Timer every 5 days. Most recently, Supplements AI was updated on September 15, 2026 and Fair Interval Timer on September 11, 2026.

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