42+ iOS apps curated and reviewed
If you already know HTH™ | Test to Swim™, this is the deeper bench. 42+ hth 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 | 4.7★ (4.1K) | No | No | Oct 2026 | |
| 2 |  | Free | 4.7★ (6.3K) | No | No | Oct 2026 | |
| 3 |  | Free | — | No | No | Jun 2026 | |
| 4 |  | Free | 4.6★ (29K) | Yes | No | Oct 2026 | |
| 5 |  | Free | — | Yes | No | Oct 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | Sep 2026 | |
| 7 |  | Free | 4.7★ (17K) | No | No | Oct 2026 | |
| 8 |  | Free | 4.5★ (18K) | No | No | Oct 2026 |
This app helps pool and spa owners maintain water quality by analyzing test strip results. It provides instant recommendations, step-by-step instructions, and access to helpful resources for clear and balanced water.
Access global healthcare resources, find doctors and hospitals worldwide, and manage your health plan details. Connect with telemedicine services, track spending, and submit claims easily. Get safety alerts and health information for international travel.
