Timer99 vs Clock Twirling
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Timer99
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Timer app that can measure 1 to 999 minutes easily and quickly with only 3 taps. This timer does not have a start button. Just tap the number you want to measure and the timer countdown will start. For example ... -To measure 120 minutes, just press 1,2,0. -To measure 45 minutes, just press 4,5. -Just press 8 to measure 8 minutes.
Clock Twirling
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Master analog clocks through interactive play. Drag the hour and minute hands to observe their linkage and intuitively understand the relationship between hours and minutes. Test your learning with randomized quizzes, progressing from simple times to precise readings. Designed for children, the intuitive drag interface and visual feedback help kids easily grasp time concepts through hands-on exploration.
Screenshots
Verdict
The clearest difference is in-app purchases: Timer99 at none against Clock Twirling's 1. Timer99 also leads on ads (none vs shown) and update cadence (every 2 days vs weekly). On price and device support 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. Clock Twirling sells 1 one-off in-app purchase. Timer99 asks for nothing beyond the download.
Timer99 ships an update every 2 days, Clock Twirling weekly. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | Timer99 | Clock Twirling |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days β better | Weekly |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 β better | 18.6 |
| Further details β not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Takahashi Naoto | zhenhua qin |
In-app purchases
Timer99
No in-app purchases
Clock Twirling
- Full Version$0.99
Questions
Is Timer99 free?
Is Clock Twirling free?
Do Timer99 or Clock Twirling have ads?
Which is updated more often, Timer99 or Clock Twirling?
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