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
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- 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.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © Seiji Honda
