Twinkle Clock vs Battements
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Twinkle Clock
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Twinkle Clock turns your screen into a night sky β a clock face made of twinkling stars and constellations. FREE β’ 12 zodiac constellations, swipe to switch β’ A twinkling starfield with the time overlaid on constellation lines PRO (one-time purchase) β’ All 88 official constellations β’ ~8,900 naked-eye stars across the whole sky β’ The Milky Way and the Moon & planets (MercuryβSaturn) β’ Nebulae, star clusters, and galaxies β’ Tap any star, the Moon, or a planet to read about it β’ Time Travel β pick any date and time to see what the sky looked like (or will look like) β’ Major meteor shower activity windows Available on iPhone, iPad, Mac, Apple TV, and Apple Vision Pro.
Battements
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You have about 2,000,000,000 heartbeats left. What will you do with them? Battements calculates how many heartbeats you have left β from your age, average life expectancy and your heart rate β and counts them down live, beat by beat. β’ A hypnotic counter beating at your heart's real rhythm β’ Take your pulse in 30 seconds with the camera: the counter locks onto your real heart β’ Your heart day after day: a resting-pulse log with a 7-day trend (full history with Battements+) β’ Your plan to win back heartbeats: the one place the counter goes up (Battements+) β’ Your life card: % lived, beats per day, estimated horizon β’ Home & Lock Screen widgets (Battements+) β’ Live counter in the Dynamic Island (Battements+) β’ Apple Watch app and complications (Battements+) β’ 34 languages, no data collected, no ads Battements is not a medical prediction. It is a modern memento mori: a gentle reminder that every heartbeat counts. Battements+: monthly subscription (β¬2.99), yearly (β¬14.99, 7-day free trial) or lifetime purchase (β¬29.99). Payment is charged to your App Store account; auto-renews unless cancelled at least 24 hours before the end of the period; manage in your account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ β Privacy: https://lastoneparis.github.io/battements-site/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: Battements at daily against Twinkle Clock's every 3 weeks. Twinkle Clock's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Twinkle Clock sells 1 one-off in-app purchase and Battements sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Twinkle Clock ships an update every 3 weeks, Battements daily. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | Twinkle Clock | Battements |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac, Vision Pro β better | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details β not scored | ||
| Size | 23 MB | 7 MB |
| Age rating | 4+ | 9+ |
| Developer | Hiroyasu Hirai | HUGO ANATOLE PAUL MORICEAU |
In-app purchases
Twinkle Clock
- Twinkle Clock Pro$24.99
Battements
- Battements+ Monthly$2.991 Month
- Battements+ Yearly7 Days trial$12.991 Year
- Battements+ Lifetime$39.99









