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Send us a message with your question, feedback or bug report. We read every message and typically respond within 1–2 business days.
cyborapps@gmail.comFrequently asked questions
The app doesn't detect RPM automatically — what can I do?
Auto-detection works best when there is a visible marker on the rotating object (a sticker, paint mark, or any high-contrast point). Make sure the object is well lit and the camera is steady. You can also use manual mode to tune the RPM by hand.
How do I back up my measurement data?
Go to the database view and use the Export Backup option. This creates a .tcbackup file you can save anywhere. You can import it on any device running TachoCamera.
The image looks blurry or flickering — is something wrong?
This is normal and intentional — TachoCamera uses a stroboscopic effect. When the set RPM matches the actual rotation speed, the object will appear frozen. The blurring at other values is the stroboscopic motion effect.
How do I restore my purchase after reinstalling?
Open the app and tap "Restore purchases" in Settings. Your subscription will be restored automatically using your Apple ID.