WhatsApp Messenger was the No. 1 app on Google Play on September 21, 2026. Ranks 2 to 5: Facebook, YouTube, Instagram and Free Fire: 9th Anniversary. The top 10 was unchanged from September 20, 2026. The full ranked top 10 is below, each with a short note on why it is trending.
All 10 names and ranks match yesterday: Facebook 2, YouTube 3, Instagram 4, Free Fire: 9th Anniversary 5, Messenger 6, Flipkart 7, TikTok 8, Clash of Clans 9, Google Photos 10. This is a lagged store snapshot, not a new chart day.
Top trending apps on Google Play: September 21
WhatsApp Messenger: Meta messaging client. Identical rank versus September 20.
Facebook: Meta social app. Holds 2.
YouTube: Google video client. Holds 3. The lagged Play board still places it behind the two Meta apps.
Instagram: Meta photo app. Holds 4. Four of the top 6 rows are Meta properties when Messenger at 6 is counted.
Free Fire: 9th Anniversary: Garena battle royale seasonal SKU. Holds 5. The 9th Anniversary label is unchanged from the September 13 snapshot.
Messenger: Meta chat app. Holds 6. Completes the WhatsApp-Facebook-Instagram-Messenger cluster.
Flipkart Online Shopping App: Indian commerce client. Holds 7. The only marketplace row on this frozen 10.
TikTok - Videos, Shop and LIVE: ByteDance video app. Holds 8.
Clash of Clans: Supercell village builder. Holds 9. Same rank as September 19 and September 20.
Google Photos: Google gallery backup app. Holds 10. Closes an identical 10 for a third consecutive researched file on this lag.
The live ranked board beyond the public top 10 is available via the Trends MCP API. Get your free API key
What changed on Google Play since yesterday
- New: none. The 10 names match the September 20 list and the September 19 list.
- Movers: none. Ranks 1-10 are unchanged.
- Unchanged rank: WhatsApp 1 through Google Photos 10.
- Dropped: none.
What today's Google Play apps reveal
This is a lag file, not a demand shift. Meta owns 1, 2, 4, and 6. Google owns 3 and 10. Games sit at 5 and 9. Flipkart at 7 is the commerce singleton.
Treat the Play 10 as last week's store snapshot until the timestamp moves. The free Google Play trends API still returns 10 rows, so the type is published, not skipped.
Track these trends in real time with Trends MCP
This ranked list came from the Trends MCP get_top_trends tool. The same API is built for analysts and developers who need a dated board, including a lagged one, instead of a screenshot. The matching data source page is free Google Play trends API.
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