Calculate precise string tension in pounds for your guitar. Features a color-coded system to easily identify light and heavy tensions. Ideal for musicians seeking consistent tuning across multiple instruments and tunings.





248+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our guitar string tension calc list covers 248+ iPhone apps updated through October 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | Yes | Aug 2026 | ||
| 2 | Free | 5.0★ (2) | No | No | May 2026 | ||
| 3 | Free | 4.8★ (149K) | Yes | No | Oct 2026 | ||
| 4 | Free | 4.5★ (40K) | Yes | Yes | Oct 2026 | ||
| 5 | Free | 3.0★ (2) | No | Yes | Aug 2026 | ||
| 6 | Free | 4.8★ (104K) | No | No | Oct 2026 | ||
| 7 | Free | 2.5★ (63K) | No | No | Oct 2026 | ||
| 8 | Free | 1.0★ (1) | No | No | May 2026 |






Calculate precise string tension in pounds for your guitar. Features a color-coded system to easily identify light and heavy tensions. Ideal for musicians seeking consistent tuning across multiple instruments and tunings.






This app offers precision tuning for guitar, bass, and ukulele with multiple modes and customizable options. It also provides a comprehensive suite of practice tools, including chord and scale libraries, and metronome functionality.