207+ iOS apps curated and reviewed
The best ctrials apps on iPhone average 4.4★ across 207+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (3) | No | No | May 2026 | |
| 2 |  | Free | 4.8★ (47K) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.5★ (4.3K) | No | Yes | Sep 2026 | |
| 4 |  | Free | 4.4★ (18K) | Yes | No | Sep 2026 | |
| 5 |  | Free | 4.7★ (131K) | No | No | Sep 2026 | |
| 6 |  | Free | 3.3★ (1.1K) | No | No | Sep 2026 | |
| 7 |  | Free | 4.5★ (3.7K) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.7★ (60K) | Yes | No | Jun 2026 |
This app provides a mobile interface for searching clinical trials listed on clinicaltrials.gov. It offers user-friendly navigation with basic, advanced, and country-specific search options. Users can save trials to favorites, email listings, and contact investigators.
This encrypted email service from Switzerland prioritizes user privacy with end-to-end encryption. It offers robust security features to protect your communications from phishing, spam, and tracking, allowing you to manage your inbox with ease.
This AI-powered app transforms your email into a messenger-like experience for professionals and teams. It streamlines inbox management with smart summaries, AI-assisted replies, and one-tap actions. Collaborate seamlessly with team chat, shared inboxes, and integrated tools.
