Estimate federal taxes for current and upcoming years, track gig income, and manage business expenses. Features include receipt scanning, voice logging, and deadline reminders. Integrates with Apple Watch and Siri for convenience.






239+ iOS apps curated and reviewed
The best quarterly tax estimator apps on iPhone average 4.2★ across 239+ 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 | Yes | Sep 2026 | ||
| 2 | Free | — | No | Yes | Sep 2026 | ||
| 3 | Free | 5.0★ (5) | No | No | Oct 2026 | ||
| 4 | Free | — | No | Yes | Oct 2026 | ||
| 5 | Free | — | Yes | Yes | Sep 2026 | ||
| 6 | Free | — | Yes | No | Aug 2026 | ||
| 7 | Free | — | No | No | May 2026 | ||
| 8 | Free | 5.0★ (1) | No | Yes | Oct 2026 |

















Estimate federal taxes for current and upcoming years, track gig income, and manage business expenses. Features include receipt scanning, voice logging, and deadline reminders. Integrates with Apple Watch and Siri for convenience.