Time_Tools vs FastClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time_Tools
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This is a 4-mode app suitable for time management calculations: time calculation function, stopwatch function, backward count timer function, and clock display function. Calculations and measurements in seconds are possible (measurements in milliseconds are not supported) You can use the time calculation function, stopwatch function, and backward count timer function on Apple Watch alone. detail of function ・Time calculation function [CALCULATOR]: Hour: minute: second addition and subtraction function ・Stopwatch function [STOP WATCH]: Stopwatch function in seconds You can not only start from 0 seconds but also set the start time in advance. ・Countdown timer function [COUNTDOWN]: Countdown timer function from a preset time When it reaches 0 seconds, no alarm is generated and it continues to move in the negative direction. (The press time will be displayed during broadcasts, etc.) ・Clock display function [TIME]: Displays the iPhone clock time digitally.
FastClock
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FastClock makes time move faster. Change how you perceive time. Focus more. Get more done. FastClock is a unique clock and timer app that changes how time feels. By making time move faster, it helps you stay focused and increase the density of your working time. Features • A clock and countdown timer that run faster at your chosen speed • Adjustable speed (unlockable) • Digital and analog clock views • Clean, distraction-free design Notes • Timer sound plays only while the app is in the foreground. • Changing the speed requires an in-app purchase (free version uses a fixed speed). • This app does not change your device’s system time. Time runs faster only within the app.
Screenshots
Verdict
The clearest difference is price: FastClock at Free against Time_Tools's $1.99. FastClock also leads on ads (none vs shown). Time_Tools's advantage is in-app purchases (none vs 1) and device support (3 vs 1).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
FastClock is free to download; Time_Tools costs $1.99 up front. FastClock sells 1 one-off in-app purchase. Time_Tools asks for nothing beyond the download.
| Parameter | Time_Tools | FastClock |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 2 months | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | HTLab | Takumi Kobayashi |
In-app purchases
Time_Tools
No in-app purchases
FastClock
- unlock speed setting$1.99









