Tippy Brim

Push the surface tension limit

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

A one-tap physics game where you push liquid past the rim and race surface tension. Hold the faucet to fill, then add drops one at a time as the meniscus shimmers. Brimful — A one-tap physics game that puts the science of surface tension at your fingertips. HOW TO PLAY 1. Pick one of three liquids in Practice mode, or take on a hidden liquid in Challenge mode 2. Hold the faucet to fill the glass to the rim 3. The faucet swaps for a dropper once the cup is full 4. Tap to release single drops and grow the iridescent dome 5. Hit "I'M DONE!" to lock in your score — spill, and the score resets to zero TWO MODES ■ Practice — three liquids to master • Alcohol: weaker surface tension, smaller dome, fast-settling ripples. Beginner-friendly • Water: balanced standard • Syrup: stronger surface tension, taller dome, long-lasting ripples. Advanced ■ Challenge — 7 mystery liquids + random cup size • Viscosity, oscillation, and dome height change every round — drawn from 7 hidden variants • Cup size also rolls between XS / S / M / L / XL • Anti-repeat ensures no two consecutive rounds share the same liquid or cup size • Scoring is fair across configurations: bulge² × time multiplier × tap bonus THRILL • Past 70% bulge, random air currents start rocking the surface • Idle long enough and the cup may spill on its own • In the dropper phase, score decays 3% per second after a 3 s grace • Faster taps boost the tap-bonus multiplier (×0.7 to ×1.30) • Challenge scores above 2000 are masked as "????" — you only see the truth when you cash in VISUAL • Iridescent soap-bubble dome that catches pink, lavender, and peach light • Warm cream paper aesthetic with a glassy cup centerpiece • Custom physics engine renders the faucet, dropper, and droplets in real time • Meniscus clings to the rim, oscillates, and breaks with believable detail DESIGN • Tap and long-press only — no shaking, no tilting • Fully offline. No network access, no ads, no in-app purchases • Bilingual JP/EN with preference persisted across launches

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FIXES • Fixed score decaying far more than it should when the device clock adjusted itself. • Fixed haptics arriving late — or not at all — on the first tap after a pause. • Fixed the same mystery liquid sometimes repeating right after relaunching the app. • Finishing without landing a drop now reads "NO SCORE" instead of "CASHED IN!". DISPLAY • Scores now use the same digit grouping on every screen. • Fixed the faucet and dropper being clipped at the top on smaller iPhones. • Improved legibility of the difficulty text on the practice liquid cards. • Corrected the how-to guide to match the game, and documented the practice fill bonus. PERFORMANCE • Reduced redraw work on the game and start screens for lower power use. ACCESSIBILITY • VoiceOver now speaks each liquid's difficulty and score multiplier. • The masked score is announced in a way that makes sense.

The developer, seiji honda, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    seiji honda
    Size
    27.2 MB
    Category
    Casual
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    Copyright
    © Seiji Honda