249+ iOS apps curated and reviewed
Out of 249+ ioptron optical polar scope apps on iOS, 14 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $1.99 | 2.7★ (12) | No | No | Aug 2026 | |
| 2 |  | Free | 4.7★ (171) | Yes | Yes | Sep 2026 | |
| 3 |  | $3.99 | 4.9★ (300) | No | Yes | Sep 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | $4.99 | 4.9★ (50) | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.7★ (69K) | Yes | No | Sep 2026 | |
| 7 |  | $0.99 was $2.99 | 2.0★ (4) | No | No | Aug 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
This utility app assists in accurately aligning telescope mounts by showing the precise position of the Pole Star within the polar scope. It employs a sophisticated algorithm to account for various astronomical factors, ensuring sub-arcsecond accuracy for astrophotography and observation.
This app calculates the precise position of celestial poles in your telescope's polar scope reticle for accurate alignment. It supports a wide range of reticles and corrects for atmospheric refraction, offering precision even at lower latitudes. Features include night mode, moon phase, and astronomical databases.
This app assists astronomers with precise polar alignment for telescopes, offering tools for various reticles and low-latitude accuracy. It also includes a comprehensive suite of astro tools, from object databases to calculators and weather reports.
