
Kahei: Currency Converter
Scan prices with your camera
0 ratings
Free
About
See foreign prices in your own currency.
Kahei is a camera currency converter for iPhone. Point at a price tag or one price on a menu or receipt, and see an approximate conversion over the camera view. Compare a meal, a souvenir or an everyday purchase without doing the math in your head.
SCAN OR TYPE
Keep one price in the scan area. Hold the result, correct a misread amount, or use the shutter for a still-photo read. Prefer the keypad? Open Convert, enter an amount and swap currencies as needed.
CONVERT OFFLINE
Bundled reference rates let you convert before your first connection. Downloaded rates are saved on your phone for later use. Refresh online and check the rate date shown in the app.
SET YOUR CURRENCIES
Choose your home and trip currencies. The trip setting helps interpret shared symbols such as $ and ¥. Turn on Round up for whole-number estimates.
KEEP RECENT SCANS HANDY
Camera scans stay in local history with the original amount and its conversion. Delete individual scans or clear the list. Manually typed conversions are separate from scan history.
No account. No ads. Camera text recognition runs on your iPhone; camera images and recognized text are not uploaded to our servers.
Conversions use daily reference exchange rates for price comparisons. Your bank, card or exchange provider may apply different rates and fees. Rates are supplied through Frankfurter, including ECB data; cross-rates are calculated.
Support: https://kahei.app/support
Privacy: https://kahei.app/privacy
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What's New in Kahei
1.0.1
November 1, 2026
More language options and easier currency choices. - Choose from 12 interface language options: English, Thai, Japanese, Korean, Simplified Chinese, Traditional Chinese, Spanish, French, German, Portuguese (Brazilian wording), Indonesian and Vietnamese. Follow your iPhone’s language or choose one in Settings. Translations work offline. - Pick home and trip currencies in a refreshed list with circular flags, clearer names, ISO codes and a highlighted selection. - See a cleaner scan result card, with the original amount, conversion estimate and correction pencil still in view.
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