Allow Camera access
If access was denied, open your system settings, find Currency Lens, and enable Camera. The app does not need microphone, location, contacts, photos, or storage access for this feature.
Help
Currency Lens Support
Help with rates, exchange records, and camera price conversion.
Contact support
Email 330182696@qq.com. Include your device model, operating-system version, app version, what you expected, and what happened.
Do not send passwords or camera images containing personal or sensitive information. Support is available in English and Chinese.
Access
Lifetime AR access
Rates and exchange logs are free. AR price conversion is a one-time, non-consumable purchase with no subscription. Use Restore Purchases in Settings after reinstalling or changing devices with the same store account.
Camera price conversion
Improve recognition
Keep the price large and level in the frame, use steady lighting, avoid glare, and move closer until the digits are sharp. Always confirm the recognized amount before relying on a conversion.
Choose the correct currencies
Set Detected currency to the currency shown on the price tag and Convert to to the currency you want. Select live rate or a manual rate created from an exchange record.
Heat and battery use
Continuous camera and on-device recognition use more power than normal rate conversion. Leave the camera screen when you finish, avoid direct sunlight, and pause use if the device becomes unusually hot.
Rates and exchange records
Refresh rates
Open the Rates page or pull down to request the latest available data. The displayed refresh time records the most recent attempt. Source data may update on a different schedule.
No network
When a refresh fails, Currency Lens uses the last successfully cached rates and labels them as offline data. Connect to the internet and pull down again to retry.
Reference rates differ
App rates are reference information. Banks, card issuers, payment networks, and exchange counters may add spreads or fees and may use a different timestamp. Use Exchange Log to save the rate you actually received.
Local records and backup
Exchange records are stored on the device and are not synced to a Currency Lens account. Deleting the app or clearing its data may remove records unless your operating system restores an eligible backup.
Privacy and data deletion
Delete individual exchange records in the app. Clear all local data by clearing app storage or uninstalling. Revoke Camera permission in system settings. For details, read the Privacy Policy.