248+ iOS apps curated and reviewed
The best calculateretro 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 |  | $1.99 | 4.5★ (15) | No | No | Oct 2026 | |
| 2 |  | Free | 4.7★ (451) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.7★ (101) | Yes | No | Oct 2026 | |
| 4 |  | Free | 4.8★ (26K) | Yes | No | Oct 2026 | |
| 5 |  | Free | 2.7★ (12) | Yes | Yes | Oct 2026 | |
| 6 |  | Free | 4.6★ (302) | No | No | Oct 2026 | |
| 7 |  | Free | 4.6★ (3K) | Yes | No | Oct 2026 | |
| 8 |  | Free | 4.7★ (15K) | No | Yes | Oct 2026 |
This app allows users to track all their calculations with features like a backspace key, history printing, and PDF export. It supports Apple Watch, dark mode, and customization of display and fonts. Calculations can be shared via email or saved for later access.
Easily price cleaning jobs and get paid directly from your phone. Create custom quotes with payment links and accept card payments and tips. Streamline your business with automated notifications and a branded payment page.
Easily calculate sales tax and IVU for Puerto Rico, or any other tax rate, before making a purchase. This free, user-friendly tool also functions as a full arithmetic calculator and can incorporate discounts into your total price calculations.
