Biological clock vs ThatRoulette
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Biological clock
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Stop your body clock ... Stop the stopwatch exactly at the target time! ▼ What kind of app is a biological clock anywhere? It is an app that trains your body clock while having fun! Please compete with your family and friends! ▼ Let's aim for perfection! If you stop it exactly, it will be displayed as PERFECT! Please aim for PERFECT! ▼ You can select the time You can change the challenge time to 5 seconds, 10 seconds, and 30 seconds. The longer you spend, the more you can't stop without having an accurate body clock. By all means, aim for perfection at all times!
ThatRoulette
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Bring "That Roulette" to your smartphone! Customize your own roulette for fun with friends and family. 【Experience "That Roulette" on Your iPhone!】 Create and enjoy the popular roulette experience with ease. Realistic animations add thrill and excitement to every spin! 【Smooth Animation】 Full-screen, smooth animations heighten the suspense of each spin. Get ready for an experience that will keep you on the edge of your seat! 【Fully Customizable】 Add any options you like to make your own unique roulette. It’s all up to you! 【Exciting Rigged Mode】 You can even pre-set the outcome for a guaranteed surprise, perfect for parties and events! (Please refrain from misuse.) Create a custom roulette experience and feel the thrill and excitement! Terms of Use and Privacy Policy: https://infinity888.jp/products/thatroulette/
Screenshots
Verdict
The clearest difference is in-app purchases: Biological clock at none against ThatRoulette's 3. Biological clock also leads on iOS requirement (12.1 vs 17.0). ThatRoulette's advantage is ads (none vs shown) and update cadence (every 5 days vs every 13 months). On price 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. ThatRoulette sells 3 in-app purchases, starting at $4.99 per month. Biological clock asks for nothing beyond the download.
Biological clock ships an update every 13 months, ThatRoulette every 5 days. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.
| Parameter | Biological clock | ThatRoulette |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 8 MB |
| Age rating | 4+ | 12+ |
| Developer | HAREPPO | Infinity Inc. (Apps) |
In-app purchases
Biological clock
No in-app purchases
ThatRoulette
- Remove Ads (Monthly)$4.991 Month
- Remove Ads (Yearly)$44.991 Year
- Remove ads$4.99
Questions
Is Biological clock free?
Is ThatRoulette free?
Do Biological clock or ThatRoulette have ads?
Which is updated more often, Biological clock or ThatRoulette?
Other comparisons
