iStopwatch vs CPU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iStopwatch
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A precision LCD-style stopwatch with lap tracking, volume key control, and customizable fonts. Whether you're timing a run, coaching a sport, or need a reliable counter for any task, iStopwatch delivers with style and accuracy. KEY FEATURES • LCD Display — Authentic digital display with glowing digits, just like a real LCD stopwatch • Lap Tracking — Record unlimited laps with fastest/slowest indicators • Volume Key Control — Start, record, pause, and reset using your device's volume buttons — no need to touch the screen • 6 Custom Fonts — Choose from Digital-7, Orbitron, Share Tech Mono, VT323, Menlo, or SF Mono • 4 LCD Themes — Switch between LCD Cyan, Green, Blue, or a dazzling Purple-Pink-Blue gradient • Haptic & Sound Feedback — Feel and hear every action • Background Timing — Keeps counting even when you switch apps • Copy Records — Share your lap data instantly • Dark Mode — Easy on the eyes, perfect for any lighting PERFECT FOR - Running and jogging - Swimming and cycling - Workout intervals - Cooking and baking - Lab experiments - Any timing task Download iStopwatch and time everything with precision.
CPU
This utility app assists designers in adapting to various phone screen sizes and resolutions. It also helps developers understand and evaluate device performance.
- Screen size adaptation
- Resolution checking
- Device performance analysis
- Developer insights
- Designer tools
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帮助设计师更好的适配手机尺寸和分辨率；帮助开发者了解手机性能！
Screenshots
Verdict
The clearest difference is price: iStopwatch at Free against CPU's $0.99. CPU's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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
iStopwatch is free to download; CPU costs $0.99 up front. iStopwatch sells 1 one-off in-app purchase. CPU asks for nothing beyond the download.
iStopwatch ships an update monthly, CPU every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | iStopwatch | CPU |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 82.4% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 景珂 陈 | 佰臣 费 |
In-app purchases
iStopwatch
- Pro Version$1.99
CPU
No in-app purchases
