WI Timer vs Lightness
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WI Timer
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Timer optimized for exercise. Use the interval timer to run the treadmill at the gym and do Tabata exercises at home. Start the timer exercise now, the most efficient way to use the set time
Lightness
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Enjoy a fast, easy, and convenient way to track your workouts, book sessions, and access Lightness – Women’s Fit Lab. With our app, you can enter the studio quickly using a QR code generated directly on your mobile device. Stay organized, monitor your progress, stay motivated, and get the most out of every workout in a space created exclusively for women.
Screenshots
Verdict
The clearest difference is ads: Lightness at none against WI Timer's shown. WI Timer's advantage is update cadence (every 2 days vs every 8 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
WI Timer ships an update every 2 days, Lightness every 8 months. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | WI Timer | Lightness |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 8 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 28 MB | 128 MB |
| Age rating | 4+ | 4+ |
| Developer | yeeun seo | Gym Realm Technology AD |
In-app purchases
WI Timer
No in-app purchases
Lightness
No in-app purchases
