Stopwatch% vs Lapper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stopwatch%
A straightforward stopwatch app featuring a large, clear display and intuitive two-button operation. It offers multiple time display options, including full seconds, tenths, and hundredths of a second, optimized for both iPad and iPhone Retina displays.
- Large display
- Two-button operation
- Full seconds display
- Tenths of a second display
- Hundredths of a second display
- Retina display support
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This stopwatch has a perfectly simple design. With a large display and only two big buttons, users can easily operate it. Display time in: -Full seconds -Tenths of a second -Hundredths of a second Retina Display for both iPad and iPhone with no ads! Download now and enjoy the simplicity of this stopwatch. Check out other great apps from Tim O’s Studios
Lapper
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Lapper turns your iPhone or iPad into a smart lap timer and real-time audio assistant for all lap-based sports. Whether you're driving, cycling, skating, or running laps, Lapper gives you detailed insights without the need for extra hardware. No complicated setup. No external sensors. Just press start and move. Lapper takes care of the rest—lap detection, timing, audio messages, and data sync happen automatically. - Just drop a start/finish point on the map and begin your session. Lapper automatically detects every lap using GPS with high precision. Under optimal conditions, lap timing is near-perfect. Even with weaker signals, accuracy stays within ±1s. - Get voice feedback in your ears, lap after lap. Choose what type of message to receive—lap time, performance progression, or best lap—and adjust message length for better focus. Stay in your zone while staying informed. - Coach Mode lets you connect live with your coach, spotter, or teammate. Talk in real time and share full session data instantly, over Bluetooth or the internet. It’s like having a pit wall in your pocket. - After your session, review detailed performance data. Compare lap times, progression, and performance deltas. Replay your route from above with satellite view and understand exactly where you gained or lost time. - Lapper also detects performance trends. Whether you're improving, plateauing, or regressing, you’ll see the trend per lap, per session, and across tracks. These trends help you adapt your training and recognize breakthroughs. - Save your tracks and sessions for any sport. Lapper remembers your favorite layouts and lets you build your personal track library, whether you're on a racing circuit, a velodrome, or a loop in the park. Built for iOS and iPadOS, Lapper takes advantage of all Apple technologies and sensors, with no extra dongles, beacons, or wearables needed. Just mount your phone and go. Train smarter. Get faster. One lap at a time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://lapperapp.com/legal/privacy
Screenshots
Verdict
The clearest difference is price: Lapper at Free against Stopwatch%'s $0.99. Stopwatch%'s advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 16.6). On update cadence, ads 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
Lapper is free to download; Stopwatch% costs $0.99 up front. Lapper sells 2 in-app purchases, starting at $6.99 per month. Stopwatch% asks for nothing beyond the download.
Stopwatch% ships an update every 9 months, Lapper every 7 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.
| Parameter | Stopwatch% | Lapper |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.1 (155 ratings) — better | — |
| Positive reviews | 71.9% of reviews | — |
| Number of ratings | 155 — better | — |
| Update frequency | Every 9 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 16 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim O's Studios, LLC | Longwave Studio |
Bugs and requests
Stopwatch%
Reported bugs
2 issues- Rotation not working on all devices
- Inconsistent behavior when switching between portrait and landscape
Requested features
3 requests- Add lap/split time functionality
- Customizable display options
- Audio cues or alerts
Lapper
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Stopwatch%
No in-app purchases
Lapper
- Coach Mode Monthly7 Days trial$6.991 Month
- Coach Mode Yearly7 Days trial$44.991 Year









