SyncFit AI vs Rest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SyncFit AI
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SyncFit AI – Stay motivated, monitor your progress Take control of your fitness with SyncFitAI, your intelligent workout tracker and AI-powered personal coach. Whether you're training at the gym, outdoors, or at home, SyncFitAI helps you plan, track, and improve every session. KEY FEATURES • Personalized dashboard with workout history and progress insights • AI coach available 24/7 for training plans, guidance, and motivation • Create, customize, and save workouts and multi-day programs • Extensive exercise library (strength, cardio, mobility) + custom exercises • Real-time session tracking: sets, reps, weight, time, distance, pace • Rest timer, heart rate tracking, and performance metrics (1RM estimates) • Nutrition tracking: calories, protein, TDEE, and goal-based recommendations • Advanced analytics: charts, heatmaps, weekly trends, top lifts, progress stats • Body measurements and composition projections WHY SYNCFITAI? Unlike basic trackers, SyncFitAI adapts to your goals and experience level to deliver personalized coaching, realistic progress projections, and actionable insights. SUBSCRIPTION SyncFitAI offers free and premium plans. Premium unlocks full AI coaching, advanced analytics, and personalized recommendations. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account. Subscription management is available in App Store account settings. Privacy Policy: https://syncfitai.com/privacy Terms of Use (EULA): https://syncfitai.com/eula
Rest
This app automatically starts rest timers between sets based on exercise type, eliminating guesswork. It offers fast set logging, routine creation, and detailed progress tracking with charts. Enjoy offline functionality and data export for a seamless workout experience.
- Automatic rest timer by exercise type
- Lock screen and Dynamic Island Live Activities
- Fast set logging with pre-filled data
- Customizable routines and workout history
- Exercise progression charts and personal records
- Offline functionality and data export
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Log a set and Rest starts your rest timer on its own, with the right duration for the exercise: more time after heavy squats and deadlifts, less after curls and lateral raises. No guessing, no forgetting to start the clock. AUTOMATIC REST TIMER • 5 rest tiers by exercise type: heavy compound 4 min, compound 3 min, accessory 2 min, isolation 90 s, light isolation 60 s • 100+ exercises already classified • Set your own rest time for any exercise and Rest remembers it LOCK SCREEN & DYNAMIC ISLAND • The countdown stays on your Lock Screen and in the Dynamic Island with Live Activities • See the exercise and set at a glance, without unlocking your phone • Haptics and a notification when it's time for the next set FAST SET LOGGING • Weight and reps, nothing else • Last session's numbers are pre-filled: one tap logs the set and starts the timer ROUTINES, HISTORY & PROGRESSION • Save your splits as routines (push, pull, legs...) or start an empty workout • Browse and edit past sessions, copy a clean workout summary to your notes • Charts per exercise: max weight, estimated 1RM, volume and personal records • Weekly volume and muscle group breakdown PRIVATE & OFFLINE • No account, no sign-up • Your workouts are stored on your iPhone and the app works without a connection, even in a basement gym • Export and import your data to move to a new phone kg or lbs, light and dark themes. REST PRO Rest Pro unlocks the whole app: automatic rest timer, Live Activities, unlimited routines, history and progression. Choose a yearly subscription with a 7-day free trial, or a monthly subscription. Payment is charged to your Apple Account at confirmation of purchase (at the end of the trial for the yearly plan). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Built by a lifter, for lifters. Terms of Use (EULA): https://rest.naelostudio.com/terms Privacy Policy: https://rest.naelostudio.com/privacy
Screenshots
Verdict
SyncFit AI and Rest are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SyncFit AI sells 3 in-app purchases, starting at $8.99 per month and Rest sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.
SyncFit AI ships an update every 2 weeks, Rest every 3 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | SyncFit AI | Rest |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 46 MB | 73 MB |
| Age rating | 12+ | 4+ |
| Developer | Fabien Greard | Veil-it |
In-app purchases
SyncFit AI
- Premium (monthly)$8.991 Month
- Premium (yearly)$69.991 Year
- Premium (Lifetime)$129.99
Rest
- Pro Annual7 Days trial$24.991 Year
- Rest Pro$59.99









