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Tool · iPhone · iOS 17+

TileSense

Better hands. One tile at a time.

Learn mahjong step by step, from your first tiles to smarter discards. Short lessons, visual explanations and a hand analyzer help you understand each choice.

Coming soon to the App Store

Why discard this tile?

Recognizing the tiles is just the beginning. Which one should you discard? How far is your hand from a ready hand? Which draws would improve it? TileSense helps you work through those choices.

Start with a short lesson and try a few questions. When you miss an answer, a visual explanation uses tiles and color to show you why. A few minutes a day can turn a hunch into a choice you understand.

From the basics, one step at a time

7 units and 34 lessons cover the tiles, chow, pung and kong, then shanten, effective tiles and partial melds, before moving on to defense, push-or-fold and calls.

Lessons also explain rule differences, including seven pairs, thirteen orphans, Sichuan’s void suit and tile swap, and the Guobiao minimum score. Build a foundation in tile efficiency, then explore how different rules change your decisions.

Put what you learn into practice

  • Today’s practice: 5 questions, about 2 minutes, for a small daily routine.
  • Skill check: 10 discard questions to test your judgment and chart your progress.
  • Focused drills: practice choosing a discard, counting shanten or finding effective tiles.
  • Mistake book: missed questions are saved automatically and removed when you answer them correctly in review.

Answers are checked by a tile-efficiency engine, with visual explanations to help you understand the reasoning.

Try a hand of your own

Enter a hand and compare the shanten and effective tiles for each possible discard. Mark tiles you have already seen on the table to compare the draws that are still available.

The analyzer supports 13-tile and Taiwanese 16-tile hands. Optional special hands, including seven pairs and thirteen orphans, can be enabled in the analyzer’s rule settings.

Try it first. Unlock when you’re ready.

Free content includes the Basics unit, the first two Tile Efficiency lessons, today’s practice and the skill check once each per day, and 5 hand analyses a day.

A single in-app purchase unlocks all lessons, focused drills, mistake review and unlimited hand analysis. There is no subscription; the price is shown by Apple in the app. Use the same Apple Account to restore your purchase after reinstalling or changing phones.

Your own pace, on your own device

No account is needed. Learning progress and settings stay on your device, without cross-device progress sync. Purchases and restoring purchases use Apple’s App Store services and may require a connection.

TileSense is made for iPhone, requires iOS 17 or later, and supports English, Simplified Chinese and Japanese. Choose classic tile artwork or large numbers, with three tile-back colors.

TileSense is for lessons and exercises only, with no matches, gambling, chips or real-money play. Read the privacy policy or visit support for help with data and purchases.

A closer look

TileSense — A learning path, one lesson at a time
A learning path, one lesson at a time
TileSense — See why, with visual explanations
See why, with visual explanations
TileSense — Start with the basics
Start with the basics
TileSense — Compare your next discard
Compare your next discard
TileSense — A little practice, every day
A little practice, every day

Actual in-app screenshots, shown in Simplified Chinese. TileSense also supports English and Japanese.

A little help, when you need it.

Read how your data is handled, or find answers and get in touch.