250+ iOS apps curated and reviewed
Out of 250+ stefan kahl apps on iOS, 20 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 | 5.0★ (6) | No | No | Sep 2026 | |
| 2 |  | Free | 4.0★ (212) | No | No | Sep 2026 | |
| 3 |  | Free | 4.9★ (111K) | No | No | Sep 2026 | |
| 4 |  | Free | 4.7★ (6) | No | Yes | Sep 2026 | |
| 5 |  | Free | 5.0★ (1) | No | No | Sep 2026 | |
| 6 |  | Free | 4.4★ (23) | No | No | Aug 2026 | |
| 7 |  | Free | 4.9★ (34) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.1★ (664) | No | No | Sep 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.
Easily identify birds by sight or sound using advanced machine learning. Explore birds in your region, track your sightings, and learn about species with photos, sounds, and range maps. This free app from the Cornell Lab of Ornithology helps build your birding skills.
