App never allows you to accept the T & Cs from the subscription period page. Same issue over 3 month ago
Estimated from the grossing charts of Oct 24, 2026 in the 53 countries we track, and ratings growth on the App Store.
From our daily snapshots of every grossing chart and daily ratings counts.
| Sep 25, 2026 | $2K a month |
| Sep 26, 2026 | not in a grossing chart |
| Sep 27, 2026 | $1.9K a month |
| Sep 28, 2026 | not in a grossing chart |
| Sep 29, 2026 | not in a grossing chart |
| Sep 30, 2026 | $1.9K a month |
| Oct 1, 2026 | not in a grossing chart |
| Oct 2, 2026 | not in a grossing chart |
| Oct 3, 2026 | not in a grossing chart |
| Oct 4, 2026 | $1.2K a month |
| Oct 5, 2026 | not in a grossing chart |
| Oct 6, 2026 | not in a grossing chart |
| Oct 7, 2026 | not in a grossing chart |
| Oct 8, 2026 | not in a grossing chart |
| Oct 9, 2026 | $1.2K a month |
| Oct 10, 2026 | $1.2K a month |
| Oct 11, 2026 | $1.1K a month |
| Oct 12, 2026 | $1.2K a month |
| Oct 13, 2026 | not in a grossing chart |
| Oct 14, 2026 | not in a grossing chart |
| Oct 15, 2026 | not in a grossing chart |
| Oct 16, 2026 | $14.9K a month |
| Oct 17, 2026 | $14.9K a month |
| Oct 18, 2026 | not in a grossing chart |
| Oct 19, 2026 | not in a grossing chart |
| Oct 20, 2026 | $8.7K a month |
| Oct 21, 2026 | $4.2K a month |
| Oct 22, 2026 | not in a grossing chart |
| Oct 23, 2026 | $1.8K a month |
| Oct 24, 2026 | not in a grossing chart |
| Oct 22, 2026 | 343 ratings |
| Oct 23, 2026 | 345 ratings |
| Oct 24, 2026 | 345 ratings |
Measured from the store, not estimated.
Latest reviews, United States App Store.
App never allows you to accept the T & Cs from the subscription period page. Same issue over 3 month ago
They do a great job of breaking down the main findings and they give broad methodology of research studies in an easy to read info graphic. They use a lot of open access studies, so many of the studies you can find and get full text on fore more detail. The only reason I gave them a 4 start is because they lack a key word search, that would make this app perfect for my needs.
Same category, earning about as much.
Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.
Where this app is buying and earning its users. Each link opens pre filtered.
Most repeated terms in the listing. Highlighted ones also appear in the title.
Released Aug 3, 2018. Current version shipped Jan 13, 2025.
Prices, ranks and reviews are per country. Revenue above is already worldwide.