186+ iOS apps curated and reviewed
The best delay calc apps on iPhone average 4.7★ across 186+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (6) | No | No | May 2026 | |
| 2 |  | Free | 5.0★ (8) | No | No | May 2026 | |
| 3 |  | Free | 5.0★ (5) | No | No | May 2026 | |
| 4 |  | Free | 5.0★ (1) | Yes | Yes | Aug 2026 | |
| 5 |  | Free | 5.0★ (1) | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.4★ (277) | Yes | No | Aug 2026 | |
| 7 |  | Free | 4.6★ (10K) | Yes | Yes | Sep 2026 | |
| 8 |  | Free was $5.99 | 4.8★ (2.4K) | No | Yes | Sep 2026 |
This app helps musicians and recording engineers calculate delay and modulation times based on BPM. Input your BPM and select rhythmic values to instantly get precise timings in milliseconds or hertz for your audio effects.
Calculate delay times and sample re-pitch amounts with a tap-tempo metronome. Preview delay sounds and determine BPM changes for your DAW. This tool helps musicians fine-tune audio effects.
This tool helps early childhood special education providers calculate developmental percentage delays for service eligibility. It is color-coded based on Alaska's requirements but can be used by any state.
