7+ iOS apps curated and reviewed
Out of 7+ max haertwig apps on iOS, 4 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (16) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.7★ (25) | No | Yes | Aug 2026 | |
| 3 |  | $0.99 | 5.0★ (1) | No | No | Jun 2026 | |
| 4 |  | Free | 2.0★ (1) | No | No | Aug 2026 | |
| 5 |  | Free | — | No | No | Aug 2026 | |
| 6 |  | $0.99 | 4.7★ (3) | No | No | Jul 2026 |
This app uses a scientifically proven system to help students and individuals improve memory and learn new information. Create flashcards for facts or vocabulary, track progress with a levels system, and enjoy various practice modes. Customize your learning experience with themes, images, and audio pronunciation.
This app helps Anno 1800 players optimize their city's production by calculating the exact number of buildings needed to support their population. It visualizes production chains and provides wikis for in-game elements.
This app helps players optimize their city-building strategies by calculating the exact number of production buildings needed to support their population. It visualizes production chains and includes a comprehensive wiki for all in-game structures.