iOS App · Now Available
Same grind,
across any grinder.
Pick two grinders you own and convert settings in seconds. Your free pair works forever; Pro unlocks all 200+.
Pick two grinders you own and convert settings in seconds. Your free pair works forever; Pro unlocks all 200+.
No feature bloat — just one thing done perfectly: converting settings between grinders.
Your free pair works both ways — C40 → K-Ultra or the reverse, all within one pair.
Not just a single number — always show the suggested range and confidence, presented as a reference, never false precision.
Built-in Comandante, 1Zpresso, Timemore and other popular hand & electric grinders, updated with each release.
Big numeric input + stepper, instant results. Minimum taps — no timer or community clutter.
Pick two grinders to form a permanent free pair — bidirectional, unlimited use, no subscription, with clear rules.
Conversion runs locally offline; we don't collect your inputs, no remote tracking, no third-party analytics.
From opening the app to getting the result — a very short path.
Choose your source and target grinders from the database, e.g. Comandante C40 and 1Zpresso K-Ultra.
Confirm to lock a permanent, bidirectional free pair. Free users can't change it — rules are stated upfront, no paywall traps.
Enter the current setting and get the target setting, suggested range and confidence in real time, plus calibration notes.
209 grinders and growing, popular models pinned by default.
One purchase, yours forever. No subscription, no renewal.
Grind Convert is now available — finish your first conversion in 10 seconds.
Download on the App StoreFree fixed pair · Pro one-time $6.99 · No subscription