This app provides a digital penlight with adjustable brightness and a built-in ruler for quick measurements. It also features color inversion for different examination needs and easy calibration using a credit card.






202+ iOS apps curated and reviewed
PenlaSync is the household name in penlight, but it's far from the only option. We track 202+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | Yes | No | Nov 2026 | ||
| 2 | $1.99 | 5.0★ (1) | No | No | Oct 2026 | ||
| 3 | Free | — | No | No | Oct 2026 | ||
| 4 | Free | 3.3★ (3.7K) | No | Yes | Nov 2026 | ||
| 5 | Free | — | No | No | Oct 2026 | ||
| 6 | Free | 4.6★ (1.3K) | No | Yes | Nov 2026 | ||
| 7 | Free | 4.7★ (47K) | Yes | Yes | Nov 2026 | ||
| 8 | Free | 4.9★ (99K) | Yes | No | Nov 2026 |









This app provides a digital penlight with adjustable brightness and a built-in ruler for quick measurements. It also features color inversion for different examination needs and easy calibration using a credit card.


