This application provides a dual-sided calculator with two tax rate options, ideal for businesses. It features a reverse display for customers and allows for quick switching between different tax systems, enhancing transparency in transactions.

248+ iOS apps curated and reviewed
The best dual calculator apps on iPhone average 4.6★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Jul 2026 | ||
| 2 | Free | 5.0★ (1) | No | Yes | Oct 2026 | ||
| 3 | Free | — | Yes | No | Oct 2026 | ||
| 4 | Free | 4.9★ (410K) | Yes | No | Nov 2026 | ||
| 5 | Free | 4.9★ (34K) | Yes | Yes | Nov 2026 | ||
| 6 | Free | 4.7★ (61K) | No | No | Nov 2026 | ||
| 7 | Free | 4.6★ (36K) | Yes | Yes | Nov 2026 | ||
| 8 | Free | 4.5★ (143) | Yes | Yes | Oct 2026 |




This application provides a dual-sided calculator with two tax rate options, ideal for businesses. It features a reverse display for customers and allows for quick switching between different tax systems, enhancing transparency in transactions.


