Comparison

Rep Timer vs ChattyFit AI Personal Trainer

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

Head to head
About

Rep Timer

This app provides a simple and elegant way to time holds and rests during workouts, offering audio cues or haptic feedback. Settings can be easily managed and synced across paired devices, with options to save custom workout shortcuts.

Highlights
  • Audio and haptic workout cues
  • Cross-device settings sync
  • Customizable workout shortcuts
  • Elegant visual hold display
  • HealthKit activity recording
Features
Read full description

Rep Timer is the timer you've been looking for! Rep Timer provides a simple, elegant way to time your holds without the need to look at your iPhone or Apple Watch. Just listen for the tone, or the tap on your wrist! And if you do look at it, it's beautiful and clear, providing a clear and elegant visualisation of the hold, and rests. It's awesome! Need to change settings? Easy! Change them on one device, and they are conveniently and automatically shared to your paired device (in either direction!). You can even save those settings as shortcuts. Have multiple workouts? Easy, just create a shortcut for each one! Swipe left and tap! Off you go! And if the app is open on both paired devices, starting your activity on one is automatically synced to the other! Don't have an Apple Watch? No worries, just use Rep Timer on your iPhone, and it will provide audible prompts, or taps (on a wooden table is awesome) to communicate. What you see is what you get. Do you want more? Let us know, and we'll look at adding in more features over time. If you're sick of ad supported apps, in-app purchases, or subscriptions, and you just want a simple timer that does what you need it to do, then Rep Timer is the app you're looking for. Rep Timer records any activities with HealthKit, so they count to your daily totals! I wrote Rep Timer because I've recently been given a set of daily exercises to do at home, and whilst I love Apples Workout app, it was a pain when I'm in a 30 second hold, that I couldn't look at my watch to know when it was time to have a break. Rep Timer lets me go into a hold, and just relax into it. When the tap comes, I know it's time to rest, and I know that Rep Timer will let me know when to start the next hold. I've built Rep Timer for my simple needs, and I'm sure that many people will appreciate a tool that is simple to use without all the fuss and bother of AI and spam generating subscriptions that just want their data.  Sometimes when all you have is a nail, a hammer is all you need. Rep Timer doesn't share or collect any data outside what you permit it to store in your own HealthKit on your devices.

About

ChattyFit AI Personal Trainer

This AI-powered fitness coach creates personalized workout plans for muscle building and weight loss, adapting to your equipment and goals. It offers exercise guidance, progress tracking, and on-demand chat support to help you stay consistent and master your form.

Highlights
  • Personalized workout plans
  • AI-driven coaching
  • Exercise form guidance
  • Adaptable to equipment
  • Workout logging and history
  • Apple Watch integration
  • Progress tracking
Features
Read full description

ChattyFit is an AI personal trainer for iPhone that helps you plan, run, and adjust workouts around your goals, schedule, equipment, and training space. Chat with your trainer to build a plan, ask questions during a workout, or get context-aware help from an active exercise. Attach images when a meal, equipment setup, or workout detail is easier to show than explain. What you can do with ChattyFit: - Describe a workout in chat, like "home, dumbbells, 20 minutes", and those choices are filled in for you. - Swap an exercise from three alternatives, and see your streak, full history, and planned workouts from Home. - Build personalized training plans for strength, conditioning, mobility, or general fitness. - Run planned workouts with a redesigned active workout and exercise experience. - Chat from a workout or active exercise without losing context. - Attach images in chat for meals, equipment, and workout details. - Share planned workouts with others. - Edit your equipment and training space in your profile as your routine changes. - Track workout history and keep your plan moving with a faster, more reliable app. ChattyFit is designed for practical everyday training. It can help you decide what to do next, plan around your available equipment, and keep notes close to the workout itself. ChattyFit is not a medical device and does not provide medical advice. Always consult a qualified professional before starting a new fitness program if you have health concerns. Terms of Use: https://chatty.fit/terms-of-service Privacy Policy: https://chatty.fit/privacy-policy

Screenshots

Rep Timer4 screens
ChattyFit AI Personal Trainer4 screens

Verdict

The call

The clearest difference is price: ChattyFit AI Personal Trainer at Free against Rep Timer's $0.99. ChattyFit AI Personal Trainer also leads on update cadence (weekly vs every 2 months) and rating (5.0 vs 4.6). Rep Timer's advantage is in-app purchases (none vs 5) and chart position (#196 vs unranked). On ads 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

ChattyFit AI Personal Trainer is free to download; Rep Timer costs $0.99 up front. ChattyFit AI Personal Trainer sells 5 in-app purchases, starting at $6.99 per 7 days. Rep Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ChattyFit AI Personal Trainer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Rep Timer has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 86% of Rep Timer's written reviews are positive against 100% of ChattyFit AI Personal Trainer's.

UpkeepUpdate frequency

Rep Timer ships an update every 2 months, ChattyFit AI Personal Trainer weekly. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

Scorecard10 real differences · 1 level
Rep Timer versus ChattyFit AI Personal Trainer: the parameters behind the verdict, then further details
ParameterRep TimerChattyFit AI Personal Trainer
Price$0.99Free — better
Rating4.6 (28 ratings)5.0 (4 ratings) — better
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings28 — better4
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#196 — better—
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS14.0 — better17.0
Further details — not scored
Size3 MB94 MB
Age rating4+17+
DeveloperpkclSoft51code Co., Ltd.

Customer experience

Rep Timer

All ratings28 ratings
Positive92.9%
Neutral3.6%
Negative3.6%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

ChattyFit AI Personal Trainer

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Rep Timer

No in-app purchases

5 purchases

ChattyFit AI Personal Trainer

Subscriptions3
  • ChattyFit Pro3 Days trial$6.997 Days
  • ChattyFit Pro7 Days trial$12.991 Month
  • ChattyFit Pro7 Days trial$99.991 Year
One-time2
  • Lifetime$124.99
  • ChattyFit Pro$249.99

Questions

Is Rep Timer free?
Rep Timer costs $0.99, with no in-app purchases.
Is ChattyFit AI Personal Trainer free?
ChattyFit AI Personal Trainer is free to download, with in-app purchases available.
Which has better reviews, Rep Timer or ChattyFit AI Personal Trainer?
ChattyFit AI Personal Trainer is rated higher. Rep Timer averages 4.6 out of 5 from 28 ratings, while ChattyFit AI Personal Trainer averages 5.0 from 4 ratings.
Do Rep Timer or ChattyFit AI Personal Trainer have ads?
Neither Rep Timer nor ChattyFit AI Personal Trainer shows ads.
Which is updated more often, Rep Timer or ChattyFit AI Personal Trainer?
Rep Timer ships an update every 2 months, and ChattyFit AI Personal Trainer weekly. Most recently, Rep Timer was updated on October 5, 2026 and ChattyFit AI Personal Trainer on October 15, 2026.

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