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App Store
Grounded
5/10

Era Line

Swipe song cards onto a decade timeline — chain 10 correct placements in a row to win.

Core mechanic

Hear a 3-second clip, swipe left/right to slide the song earlier/later on a visible 1950s–2020s timeline, lock in to score.

Controls

Swipe left = earlier in time, swipe right = later, tap = replay clip (limited replays).

Theme

100 years of pop, rock, hip-hop and EDM trivia anchored to a horizontal timeline.

Why now

HITSTER hit #11 free in DE with 15K+ ratings and 4.7 stars, proving timeline-placement music games are a breakout niche.

Signals · overall 5/10
Hook
6/10

HITSTER proves appetite for chronological song-placement: #1 game in NL (2023 & 2024), #1 in DE, top 5–10 in CA — but success is in the physical card product, not a standalone digital mechanic.HITSTER best-seller NL 2023/24, top in Germany Sept 2024Brand site confirms timeline-placement hook underpins a real mass-market hit

Virality
6/10

Streak-based shareable results ('nailed 10 in a row') echo Heardle/Wordle viral mechanics and music-decade trivia does well socially — but the broader 'guess the era' format has cycled publicly before.Timdle shows the shareable daily-music-timeline format exists but remains niche (4.0★, 143 votes)

Simplicity
4/10

Swipe + replay UI is trivial, but the real cost/Build complexity is music licensing (sync rights for 300+ clips across 7 decades) — JITTER-tier catalog acquisition is hard for a small studio.HITSTER's scale relies on Jumbo's catalog — building that as an indie is non-trivialOfficial app store copy even says you need the physical card game — confirming licensing dependency

Monetization
4/10

Music games monetize poorly in hypercasual: audio ads break the listening loop, and licensed tracks eat ARPDAU; HITSTER's app isn't even a standalone product (requires card purchase), and Timdle-style dailies convert to subscription slowly.HITSTER app ranked on App Store leaderboard as a physical-game accessory — limited ad/subscription revenueOnly 42 iOS apps tag as 'hitster' — category is thin, meaning both upside and limited proven monetization precedent

Whitespace
7/10

Direct hypercasual competitors in 'swipe song onto decade timeline' are very thin — SongPop owns 'guess the artist,' Timdle is a tiny web-first daily, leaving the swipe-decade format relatively open.Only ~42 apps cluster around the HITSTER topic — low direct saturation for the exact mechanic

HITSTER · #11 top free · DE · Koninklijke Jumbo B.VApp Store · 2026-07-18 (7d ago)