App Store (Free)
YouTube TV is new at 10 on App Store Top Free dated 2026-09-21T08:01:37.804638, joining Depop at 8 and Fubo at 9 as the three fresh rows. Muse from Meta still holds 1 after Meta's agent app passed ChatGPT on U.S. free charts around September 17-18, per 9to5Mac and Appfigures. Kalshi: Trade Football and more climbs 6 to 4. Five Guys, Google Gemini, and CapCut drop off the 10.
Top trending apps on App Store Free: September 21
Muse from Meta: Meta's U.S.-only personal agent app, launched September 8. 9to5Mac dated a U.S. free-chart lead over ChatGPT to September 18. Appfigures put installs near 1.1 million devices through Friday. Holds 1.
ChatGPT: OpenAI chat client. Holds 2 after Muse took the top free slot. No separate September 21 model launch in the fetch; the rank is a chart fight with Muse.
Vinted: Pre-loved marketplace: Secondhand clothing marketplace. Holds 3 for a second day. No widely reported U.S. campaign dated September 21.
Kalshi: Trade Football and more: Event-contract app. Climbs 6 to 4 as NFL Week 2 (Colts-Chiefs 33-30 in overtime on September 20) keeps prediction-market installs warm.
Polymarket: Trade Live Sports: Sports prediction market. Climbs 7 to 5, one step behind Kalshi. Same Sunday-night football window.
TikTok Pro - Events: TikTok events companion. Falls 5 to 6. No separate product note dated September 21.
PineDrama - Short Dramas: Vertical short-drama player. Climbs 8 to 7. Holds inside the free 10 after arriving yesterday at 8.
Depop - Buy and Sell Clothes: Peer-to-peer fashion app. New at 8, replacing Five Guys Burgers and Fries (4 yesterday). Resale now has Vinted at 3 and Depop at 8.
Fubo: Watch Live TV and Sports: Live TV and sports streamer. New at 9. Sunday Night Football at Arrowhead is the dated sports-TV cue; no separate Fubo launch was found.
YouTube TV: Google live-TV service. New at 10, replacing CapCut. Same sports-weekend install pattern as Fubo.
The live ranked board beyond the public top 10 is available via the Trends MCP API. Get your free API key
What changed on App Store Free since yesterday
- New: Depop (8), Fubo (9), YouTube TV (10).
- Movers: none at 5-plus ranks. Kalshi 6 to 4. Polymarket 7 to 5.
- Unchanged rank: Muse at 1; ChatGPT at 2; Vinted at 3.
- Dropped: Five Guys Burgers and Fries (4), Google Gemini (9), CapCut (10).
What today's App Store Free apps reveal
The free iPhone board is still an agent-app fight at 1 and 2, then a resale-plus-sports mix. Muse holds 1 after the September 18 U.S. chart story. The three new rows are all commerce or live TV: Depop, Fubo, YouTube TV. Food (Five Guys) and editing (CapCut) leave.
Kalshi at 4 and Polymarket at 5 sit one day after Chiefs 33-30 Colts in overtime, with Mahomes at 382 passing yards. That is a sports-market pair, not a new agent. The App Store Top Free API stamp 2026-09-21T08:01:37.804638 is a three-row swap at the tail.
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, ASO teams, and developers who need a dated board instead of a screenshot. get_growth was skipped: App Store rows are apps, not app downloads Android bundle IDs. The matching data source page is App Store Top Free API.
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"type": "App Store Top Free",
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