AR Countdown vs Decima
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AR Countdown
This app offers a unique timer experience by projecting a large, visible clock, stopwatch, or countdown into the real world using augmented reality. It's ideal for situations requiring a timer visible from a distance, such as classrooms or events, and can be mirrored to an Apple TV.
- Augmented reality timer projection
- Large, visible display
- Stopwatch, timer, and clock modes
- Customizable fonts and colors
- Apple TV mirroring via AirPlay
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The AR countdown is the best timer app that provides you with a countdown, stopwatch, and clock in the real world. It provides a big screen timer that can be clearly viewed from the large distance. First AR-enabled timer app that provides you to run your timer in the real world. You can project it on your Apple tv using AirPlay mirroring. It’s perfect for classrooms, debates, game shows, sporting events, or anywhere a highly visible timer is needed. Features: - AR mode (project the timer in the real world) - Different font and colors - Different sounds for timer end - Three modes - stopwatch, timer and clock - Display the timer on an Apple TV using AirPlay mirroring
Decima
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The application you have before you is but a small attempt at working with time. Since it's a precious commodity all we can do is spend it wisely. That's why I've decided to spend a bit of my time and create Decima (named after Roman Parca, the female personification of destiny) so that you don't have to ;) So what you can do with Decima? In the current version 1.1 (Joséphine) you can: • create multiple timers • set multiple alerts per timer to track time expenditure • use it on both: your iPhone and Apple Watch (iPhone application is necessary) • start/stop timers on demand from your iPhone/iPad or Apple Watch • organize your time in sets • see total/partial time spent for a particular timer • automatically synchronise data between your iPhone and your Apple Watch (timer started on your phone can be paused on your Apple Watch and vice-versa) Have fun. Catch me at krzyspmac@twitter or contact (at) krzysp.net
Screenshots
Verdict
The clearest difference is in-app purchases: AR Countdown at none against Decima's 1. AR Countdown also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads 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
Both are free to download. Decima sells 1 one-off in-app purchase. AR Countdown asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 26, 2026 and October 11, 2026 respectively.
| Parameter | AR Countdown | Decima |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Pradeep Yadav | Krzysztof Pawlowski |
In-app purchases
AR Countdown
No in-app purchases
Decima
- The Manipulator$0.99









