237+ iOS apps curated and reviewed
The best twelvec apps on iPhone average 4.2★ across 237+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.1★ (10) | No | Yes | Oct 2026 | |
| 2 |  | Free | 3.4★ (212) | Yes | Yes | Nov 2026 | |
| 3 |  | $5.99 | 4.2★ (1.2K) | No | No | Nov 2026 | |
| 4 |  | Free | 4.5★ (19) | No | Yes | Nov 2026 | |
| 5 |  | $8.99 | 4.9★ (927) | No | No | Nov 2026 | |
| 6 |  | Free | 3.4★ (20) | No | No | Oct 2026 | |
| 7 |  | Free | 4.7★ (25K) | No | Yes | Nov 2026 | |
| 8 |  | Free | 4.3★ (4) | No | Yes | Nov 2026 |
This app replicates the functionality of a classic financial calculator, offering modern enhancements like interactive prompts and register views. It provides basic calculator, math, percentage, calendar, and memory functions for free, with advanced financial tools available via a one-time purchase.
This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.
This app emulates the functionality of the HP 12C Financial Calculator, offering all its features and more for mobile devices. It provides a reliable and convenient way to perform complex financial calculations on the go.
