Chronometer vs Retroaction
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chronometer
This interval timer is designed for various training routines, including weightlifting, HIIT, and boxing. It offers customizable timers, repetitions, and sound alerts to guide your workouts. Save and load your training plans for easy access and progress tracking.
- 3 programmable timers
- Customizable time settings
- Customizable repetitions
- Save and load training plans
- Audible alerts
- Speaking coach
- Visual cues
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This app is an awesome training timer for lifting weights, exercise, workout, stretching, boxing, MMA or HIIT, this interval timer will prove to be an invaluable asset for your HIIT interval training. FEATURES: * 3 programmable timers * Customize all time settings * Customize number of exercises * Customize number of repetitions * Save and load plannings * easy to hear alerts * pause and resume session * restart session where you left off if interrupted * Set sound volume * screen changecolor for visual cue * Speaking coach If you like this app please consider writing a positive review on the App Store, thank you. This will help us to add new features, fix any bugs, and improve app.
Retroaction
This app helps members of sports organizations manage their attendance for activities. Users can view team details and communicate with others through integrated chat rooms.
- Mark attendance
- View group/team details
- In-app chat rooms
- Communication features
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The Retroaction application allows members of a sports association or organization to indicate their presence or absence at different activities. They can also consult the details of their group or team as well as communicate using the chat rooms.
Screenshots
Verdict
The clearest difference is in-app purchases: Retroaction at none against Chronometer's 1. Retroaction also leads on update cadence (every 2 weeks vs every 37 months) and review sentiment (21% vs 0%). Chronometer's advantage is ads (none vs shown). On price, 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
Both are free to download. Chronometer sells 1 one-off in-app purchase. Retroaction asks for nothing beyond the download.
Chronometer ships an update every 37 months, Retroaction every 2 weeks. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.
| Parameter | Chronometer | Retroaction |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 21.4% of reviews — better |
| Number of ratings | 3 — better | — |
| Update frequency | Every 37 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Sergio Musoles Tornador | Retroaction |
Customer experience
Chronometer
Retroaction
In-app purchases
Chronometer
- Unlock timer settings$1.99
Retroaction
No in-app purchases









