Free
¥0
Lite
Unlimited Pro
+ 10 permanent
Pricing
Buy credits or leave a tip
Purchased credits never expire; free credits are used before purchased credits.
If you do not need Pro credits right now, you are also welcome to support the developer and help keep Formula Bridge maintained and running.
20 Pro credits
¥4.98
Lite
Unlimited Pro
Pro
+ 20 permanent50 Pro credits
¥8.98
Lite
Unlimited Pro
Pro
+ 50 permanent100 Pro credits
¥14.98
Lite
Unlimited Pro
Pro
+ 100 permanentSupport the developer
Your support helps cover server costs and ongoing updates, keeping Formula Bridge stable for the long term. I am deeply grateful for every contribution.
Recognition modes
Lite works best for clear formula screenshots. Pro is better suited to handwriting, photos, and complex formulas.
Free to use
Lite recognition
Fast recognition for clear screenshots of printed formulas, with no usage limit.
¥0per use
Free and unlimited
- Clear screenshots of printed formulas
- Formulas in PDFs, papers, and webpages
- Single-line formulas, multiline formulas, and matrices
- Edit and export the result
Paid
Pro recognition
More accurate recognition for handwriting, photos, and complex formulas.
¥0.14～¥0.24per use
Free daily credits, with more available to buy
- Formulas in handwritten notes
- Phone photos of formulas on paper
- Screenshots with both text and formulas
- Complex formulas with nested fractions and roots