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Put 2 to 5 apps side by side, from Google Play, the App Store, or both.
The leader in each row is highlighted.
Daily position in Vietnam. Higher on the graph is better (rank 1 is the top).
| Date | Dolphin EasyReader | PocketBook reader… |
|---|---|---|
| 16 Oct 2026 | — | #98 |
| 8 Oct 2026 | — | #99 |
Not in this chart in Vietnam: Dolphin EasyReader.
Share of ratings at each star level. A big 1★ bar means many unhappy users.
Dolphin EasyReader
★ 3.50 · 945 ratings
PocketBook reader - EPUB, PDF
★ 4.68 · 102,220 ratings
How each app sells itself on the store, how it makes money, and what devices it needs.
What each app changed, and when. Compare the dates with the rank graph to see what worked.
No changes found in this period.
New ratings per day is the best free sign of how many people are downloading right now: more new ratings means more new players.
Not enough daily data yet. The graph appears after the daily scraper has collected these apps on at least 2 days.
Best position in each country's top charts. The 10 countries where these apps are strongest.
From each app's saved English reviews. The red cell is where an app gets the most complaints, which is your chance to do better.
Dolphin EasyReader
Biggest complaint: crashes and bugs
“I can download the book, but when I go to play the book it gets stuck permanently on a loading screen and doesn't work.”
PocketBook reader - EPUB, PDF
Biggest complaint: crashes and bugs
“The app crashes a lot.”
