250+ iOS apps curated and reviewed
The best stratosphere by terso apps on iPhone average 2.2★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | Sep 2026 | |
| 2 |  | Free | — | No | No | May 2026 | |
| 3 |  | Free | 1.0★ (1) | No | No | Sep 2026 | |
| 4 |  | Free | 1.0★ (1) | No | No | May 2026 | |
| 5 |  | Free | 3.3★ (8) | No | Yes | Jun 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | 1.0★ (1) | No | No | May 2026 | |
| 8 |  | Free | 4.0★ (1) | No | No | May 2026 |
This app guides you through every step of launching a stratospheric weather balloon, from planning and equipment selection to launch and data analysis. It provides mobile tools for real-time weather monitoring, mission checklists, helium calculations, and flight path predictions.
