249+ iOS apps curated and reviewed
Out of 249+ stefan kahl apps on iOS, 19 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 |  | Free | 4.1★ (15) | No | No | Oct 2026 | |
| 2 |  | Free | 4.0★ (215) | No | No | Oct 2026 | |
| 3 |  | Free | 4.3★ (4.5K) | Yes | No | Nov 2026 | |
| 4 |  | Free | 4.6★ (4.7K) | No | No | Oct 2026 | |
| 5 |  | Free | — | No | No | Oct 2026 | |
| 6 |  | Free | 4.3★ (24) | No | No | Oct 2026 | |
| 7 |  | $9.99 | 4.5★ (569) | No | Yes | Oct 2026 | |
| 8 |  | Free | 4.3★ (24) | No | Yes | Oct 2026 |
Identify bird species by their songs and calls directly on your device, even offline. This app provides real-time spectrograms, species detections, and tools for structured bioacoustic research and surveys. Manage your sound library and contribute to scientific understanding.
Identify bird species by their sounds using AI. Record audio with your device and discover the birds around you. Contribute to conservation research by submitting your recordings.
Identify North American birds with a comprehensive field guide. Features include real-time bird identification, detailed species information, and sighting logs. Connect with a community of birdwatchers and conservationists.
