Comparison

FastCalo AI vs GymTimer

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

Head to head
About

FastCalo AI

Read full description

FastCalo AI makes weight loss journey simple by combining Intermittent Fasting with powerful AI Calorie Tracking. Stop guessing your calories and start seeing results. FastCalo AI acts as your personal nutrition coach, helping you decide when to eat and what to eat. Bring consistency to your Fasting schedule, weight, workout, steps count and more. What you can do: - Track Fasts: customizable timers for Intermittent Fasting for 12:12, 16:8, OMAD, and more. - Count Calories: Instant AI search for millions of foods. - Balance Macros: Keep your Protein, Carbs, and Fats in check. - Sync Activity: Connect your steps to measure calories burned. - Health Metrics: Log your weight, workout, steps count and more to bring consistency. No strict diets, no confusion. Just simple, data-driven tools to help you live healthier. Get started with FastCalo AI today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fastcaloai.github.io/doc/privacy.html Terms of Service: https://fastcaloai.github.io/doc/terms.html

About

GymTimer

Create and follow custom interval workouts for HIIT, Tabata, and circuits. Track progress, set goals, and earn rewards. Personalize your timer and sync data across devices with an optional subscription.

Highlights
  • Customizable work/rest intervals
  • Full-screen clear timer display
  • Workout history and progress tracking
  • Daily workout goals and streaks
  • Workout favorites and reminders
  • Cloud sync with Crystal ID
Features
Read full description

Build custom HIIT, Tabata and circuit workouts with a clear interval timer made for training. Control preparation, work, rest, exercises, rounds and round resets so every session stays on track. BUILD YOUR WORKOUT Add a preparation countdown, set work and rest times, choose exercises and rounds, and add a round reset between rounds. The redesigned Home screen shows your whole workout and its total duration at a glance. Save favorite setups so your next session is ready in seconds, with every setting shown on each favorite card. TRAIN WITH FOCUS The timer screen fits your device, keeping the countdown large and clear. Turn tick sounds on or off to train the way you like. CREATE A ROUTINE Schedule favorite workouts for the days and times that suit you. Smart reminders help you stay consistent. SEE YOUR PROGRESS Review workout history, active days, streaks, trophies, and awards. Set a daily activity goal and see how each session moves you forward. MAKE IT YOURS Choose themes, timer styles, sounds, week settings, and avatars. Optional cloud sync keeps supported data available across your devices. Some features require a Pro subscription. Terms of Use: https://crystalinteractiveentertainment.com/terms Privacy Policy: https://crystalinteractiveentertainment.com/privacy

Screenshots

FastCalo AI4 screens
GymTimer4 screens

Verdict

The call

The clearest difference is update cadence: GymTimer at every 4 days against FastCalo AI's every 2 weeks. FastCalo AI's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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. FastCalo AI sells 3 in-app purchases, starting at $4.99 per month and GymTimer sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FastCalo AI ships an update every 2 weeks, GymTimer every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
FastCalo AI versus GymTimer: the parameters behind the verdict, then further details
ParameterFastCalo AIGymTimer
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size55 MB85 MB
Age rating17+12+
DeveloperPradeep Singh RawatCrystal Interactive Entertainment LLC

In-app purchases

3 purchases

FastCalo AI

Subscriptions3
  • FastCalo AI Premium – Monthly$4.991 Month
  • FastCalo AI Premium – 6 Months$23.996 Months
  • FastCalo AI Premium Yearly7 Days trial$35.991 Year
2 purchases

GymTimer

Subscriptions2
  • Monthly$4.991 Month
  • Yearly3 Days trial$19.991 Year

Questions

Is FastCalo AI free?
FastCalo AI is free to download, with in-app purchases available.
Is GymTimer free?
GymTimer is free to download, with in-app purchases available.
Do FastCalo AI or GymTimer have ads?
Both FastCalo AI and GymTimer show ads.
Which is updated more often, FastCalo AI or GymTimer?
FastCalo AI ships an update every 2 weeks, and GymTimer every 4 days. Most recently, FastCalo AI was updated on October 25, 2026 and GymTimer on October 31, 2026.

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