Compare apps
Put 2 to 5 apps side by side, from Google Play, the App Store, or both.
Key numbers
The leader in each row is highlighted.
imo-International Calls & ChatRakuten Viber Messenger
Rating★ 4.45★ 4.21
Number of ratings9,092,03816,676,420
InstallsGoogle Play only1,000,000,000+1,000,000,000+
Countries in top chartsToday2521
Rank history
Daily position in United States. Higher on the graph is better (rank 1 is the top).
- imo-International Calls & Chat · not in this chart
- Rakuten Viber Messenger · Communication
Show as table
| Date | imo-International… | Rakuten Viber Mes… |
|---|---|---|
| 24 Oct 2026 | — | #71 |
| 23 Oct 2026 | — | #71 |
| 22 Oct 2026 | — | #71 |
| 21 Oct 2026 | — | #72 |
| 20 Oct 2026 | — | #75 |
| 19 Oct 2026 | — | #75 |
| 18 Oct 2026 | — | #72 |
| 17 Oct 2026 | — | #71 |
| 16 Oct 2026 | — | #74 |
| 15 Oct 2026 | — | #75 |
| 14 Oct 2026 | — | #72 |
| 13 Oct 2026 | — | #68 |
| 12 Oct 2026 | — | #68 |
| 11 Oct 2026 | — | #69 |
| 10 Oct 2026 | — | #67 |
| 9 Oct 2026 | — | #67 |
| 8 Oct 2026 | — | #71 |
imo-International Calls & ChatRakuten Viber Messenger
Days in the chartOut of 17
Rating breakdown
Share of ratings at each star level. A big 1★ bar means many unhappy users.
imo-International Calls & Chat
★ 4.45 · 9,092,038 ratings
5★79%
4★6%
3★4%
2★3%
1★8%
Rakuten Viber Messenger
★ 4.21 · 16,676,420 ratings
5★
Store page, money and tech
How each app sells itself on the store, how it makes money, and what devices it needs.
imo-International Calls & ChatRakuten Viber Messenger
Store page
Name lengthBoth stores allow 30 characters30 / 3023 / 30
Short descriptionGoogle Play, up to 80 characters53 / 8076 / 80
Description265 words421 words (leader)
Screenshots67 (leader)
Promo videoGoogle Play