18+ iOS apps curated and reviewed
The best ecological momentary assessment apps on iPhone average 4.2★ across 18+ 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 | 4.6★ (1.5K) | No | No | Nov 2026 | |
| 2 |  | Free | 5.0★ (3) | No | No | May 2026 | |
| 3 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 4 |  | Free | 4.3★ (19) | No | No | May 2026 | |
| 5 |  | Free | 4.2★ (5) | No | No | Oct 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | Oct 2026 | |
| 7 |  | Free | — | No | No | Nov 2026 | |
| 8 |  | Free | — | No | No | Aug 2026 |
This app facilitates experience sampling and ecological momentary assessment for research. It allows users to share opinions and experiences through surveys and daily diaries, ensuring data privacy. Researchers can collect valuable insights through this platform.
This tool assists with Cognitive Behavior Therapy by presenting customizable questions for users to answer via text or voice. Responses can be saved and emailed to therapists or researchers, with options for random prompting intervals and password protection for data integrity.
This tool facilitates "in the moment" data gathering for research, enabling a deeper understanding of participants' thoughts and feelings. It supports various question types and scheduling options, functioning offline for seamless data collection.
