Dragging 90 cards into tiers on your phone is miserable, so I built a K-pop bias ranker where you just tap who you like more.

Jun 11, 2026

Ranking biases on TierMaker always falls apart for me on mobile. Dragging a wall of portrait cards into tiers with your thumb gets so tedious that I end up quitting halfway every time.

So I tried a different approach: it shows you two idols at a time and you just tap your bias. After about 30 quick matchups, it builds your full S→F ranking from your picks. No dragging at all unless you want to tweak placements at the end.

Right now it has 216 idols across 35 groups, including BLACKPINK, BTS, NewJeans, TWICE, Stray Kids, IVE, aespa, LE SSERAFIM, SEVENTEEN, ATEEZ, and more.

It’s free to rank any single group. There’s a one-time $2.99 unlock for cross-group all-time bias rankings, by-generation / by-gender splits, and extra share-card themes.

No subscription, no account, and everything stays on your phone. Photos are from Wikimedia Commons. iOS only for now.

Mostly posting because I want to know which groups or idols I’m missing, and whether the head-to-head pacing feels right or starts to drag. Also genuinely open to “this idol is wrong” or “this photo is bad” callouts.

https://apps.apple.com/us/app/id6767983902

submitted by /u/BabaBigMan
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Dragging 90 cards into tiers on your phone is miserable, so I built a K-pop bias ranker where you just tap who you like more.

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