Comparison

Callisthenics vs Onset Workouts

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

Head to head
About

Callisthenics

Read full description

It's a workout app that uses a camera to automatically count repetitions in real time with on-device processing for a variety of callisthenics routines, including press-ups, squats, pull-ups, sit-ups, and dips.

About

Onset Workouts

Features
Read full description

The Spotify for Workouts. Onset turns hundreds of workouts and training programs into guided, follow-along sessions. Stop saving workouts you'll never do. Choose a workout, press Start, and let Onset tell you exactly what to do and when to do it. Every exercise, interval, rest period and round is already mapped into the timer, with hands-free audio cues keeping you on track. No setting timers between exercises. No trying to remember what comes next. No constantly checking your phone. Just press Start and train. Whether you're training with kettlebells, dumbbells, bodyweight, HIIT, strength, circuits, cardio or mobility, Onset makes following a workout ridiculously simple. HUNDREDS OF READY-TO-GO WORKOUTS • Explore hundreds of workouts across different training styles, equipment and durations • Follow complete multi-day training programs and challenges • Load any shared workout instantly using a simple workout code • Every workout is already mapped and ready to start • Find workouts that fit the equipment and time you have available A TIMER THAT ALREADY KNOWS THE WORKOUT • Exercises, intervals, rest periods and rounds are mapped for you • Voice cues tell you what's coming next • Countdown cues keep you moving without watching your phone • Beep mode provides a simple alternative to voice coaching • Works alongside your favourite music BUILD YOUR OWN WORKOUTS • Create your own interval workouts • Set custom work and rest periods • Add exercise names and audio announcements • Configure rounds and exercise sequences • Save your favourite workouts and use them again anytime TRACK YOUR TRAINING • See your workout history • Build and maintain training streaks • Track completed workouts and active training time • Restart previous workouts in a tap ONSET PREMIUM Unlock the complete Onset workout library and training programs, plus premium workout and tracking features. Try Onset Premium free for 14 days. Less time configuring timers. Less time scrolling through saved workouts. Pick a workout. Press Start. Train. Terms of Use: timerpro.co/terms Privacy Policy: timerpro.co/privacy

Screenshots

Callisthenics4 screens
Onset Workouts4 screens

Verdict

The call

The clearest difference is price: Onset Workouts at Free against Callisthenics's $1.99. Onset Workouts also leads on update cadence (every 2 days vs every 5 weeks). Callisthenics's advantage is in-app purchases (none vs 2). On ads, device support 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

Onset Workouts is free to download; Callisthenics costs $1.99 up front. Onset Workouts sells 2 in-app purchases, starting at $1.99 per month. Callisthenics asks for nothing beyond the download.

UpkeepUpdate frequency

Callisthenics ships an update every 5 weeks, Onset Workouts every 2 days. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 3 level
Callisthenics versus Onset Workouts: the parameters behind the verdict, then further details
ParameterCallisthenicsOnset Workouts
Price$1.99Free — better
Update frequencyEvery 5 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.2 — better26.5
Further details — not scored
Size13 MB34 MB
Age rating17+4+
DeveloperMaksym KhamdanStefan Michalak

In-app purchases

None

Callisthenics

No in-app purchases

2 purchases

Onset Workouts

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Yearly$19.991 Year

Questions

Is Callisthenics free?
Callisthenics costs $1.99, with no in-app purchases.
Is Onset Workouts free?
Onset Workouts is free to download, with in-app purchases available.
Do Callisthenics or Onset Workouts have ads?
Neither Callisthenics nor Onset Workouts shows ads.
Which is updated more often, Callisthenics or Onset Workouts?
Callisthenics ships an update every 5 weeks, and Onset Workouts every 2 days. Most recently, Callisthenics was updated on September 8, 2026 and Onset Workouts on September 13, 2026.

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