249+ iOS apps curated and reviewed
Telescope Eyepiece Calculator is the household name in eyepiece, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 1.0★ (1) | No | Yes | Oct 2026 | |
| 2 |  | $4.99 | — | No | No | May 2026 | |
| 3 |  | Free | 4.8★ (14K) | No | No | Nov 2026 | |
| 4 |  | $2.99 | 4.3★ (44) | No | No | Oct 2026 | |
| 5 |  | Free | 1.0★ (1) | No | Yes | Nov 2026 | |
| 6 |  | Free | 4.9★ (259K) | No | No | Nov 2026 | |
| 7 |  | Free | 5.0★ (1) | No | No | Oct 2026 | |
| 8 |  | Free | — | No | No | Jul 2026 |
This tool helps astronomers calculate telescope magnification, exit pupil, and field of view. It offers real-time results for various eyepieces and includes features like night mode and equipment saving. An optional upgrade unlocks advanced features for planning and comparison.
Discover and virtually try on a wide selection of stylish and affordable prescription or non-prescription eyewear. This app offers smart shopping features like AR try-on, precise measurements, and style recommendations to help you find the perfect frames for any occasion.
