63+ iOS apps curated and reviewed
If you already know Billie Tracker, this is the deeper bench. 63+ billie cooperative apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (5) | No | No | Oct 2026 | |
| 2 |  | Free | 4.8★ (12) | No | No | Oct 2026 | |
| 3 |  | Free | — | No | No | Oct 2026 | |
| 4 |  | Free | — | No | No | Oct 2026 | |
| 5 |  | Free | 2.8★ (20) | No | No | Oct 2026 | |
| 6 |  | Free | 5.0★ (3) | No | No | Sep 2026 | |
| 7 |  | Free | 4.2★ (11) | No | No | Oct 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
Create music with a powerful groovebox featuring a step sequencer, synthesizers, and a sampler. Arrange patterns into songs, shape unique sounds, and export your finished tracks. Designed for intuitive music production on mobile devices.
Create and send professional invoices in seconds without needing an account. This app offers a truly free, ad-free experience for freelancers and small businesses to get paid faster. It works offline and allows for easy sharing and tracking of payments.
This app streamlines research project management for individuals and teams. It offers features for creating groups, organizing projects with secure file sharing, and coordinating activities with real-time progress tracking. Designed for researchers, it simplifies complex workflows.
