How can we help?
Calculator+ Pro looks like an ordinary calculator, but the right code unlocks a private space for your photos, videos, files, notes, contacts and passwords.
Contact supportHidden vault
Type your passcode on the calculator and press = to open your private space.
Fake password
A decoy code opens a separate space with harmless content.
Cloud transfers
Import from and back up to your own Google Drive or Dropbox.
Intrusion photo
Optionally snap a photo of anyone who enters a wrong passcode.
Frequently asked questions
How do I set up my passcode?
On first launch, type the passcode you want on the calculator keypad and confirm it when asked. From then on, type the passcode and press = to open your private space.
To set up a fake (decoy) password as well, enter the fake password twice and then your real password twice, as the in-app hint describes. You can change passwords later in Settings → Set password.
I forgot my passcode. Can you recover it?
No. Your content is stored only on your device and we never receive your passcode, so we cannot recover or reset it for you. We recommend backing up important files to your own Google Drive or Dropbox account.
What is the fake password?
If someone asks to look inside the app, give them the fake password. It opens a separate, harmless space. Only your real password opens your actual private content.
How do I add photos and videos?
Open your private space, tap + and choose Add Photo/Video or Camera. You can select multiple photos, but only one video at a time. After importing, you may delete the originals from the Photos app if you want them to be hidden.
How do I connect Google Drive or Dropbox?
Go to Settings and tap Link Google Drive or Link Dropbox, then sign in with your own account. You can then use Add from Google Drive / Dropbox to import files, or upload files back. Transfers only go between the app and your own cloud accounts; tap Unlink any time to disconnect.
Saving files from cloud accounts is part of the PRO features.
Where can I see transfer progress?
Open the Transfers section in the app. Only one transfer runs at a time; if you see “Operation in progress”, wait until it finishes and try again. If a transfer fails, check your internet connection and that your cloud account is still linked.
What is the intrusion photo?
When enabled in Settings, the app uses the front camera to take a photo when a wrong passcode is entered. The photo is saved only inside the app on your device.
Will I lose my data if I delete the app or change phones?
Yes. Private content is stored locally inside the app, so deleting the app removes it permanently. Before deleting the app or moving to a new device, upload the files you want to keep to your Google Drive or Dropbox and import them again on the new device.
How do I restore my purchases?
Open Settings → Buy Advanced Features and tap Restore Purchase, using the same Apple ID you purchased with. Purchases are processed by Apple; for refunds please visit reportaproblem.apple.com.
Why does the app ask for Camera, Photos or Contacts access?
Camera is used to take photos/videos directly into your private space and for the optional intrusion photo. Photos is used to import items you choose. Contacts is used only to store and manage private contacts locally on your device. Nothing is uploaded to our servers. See our Privacy Policy.
Still need help?
Email us and we'll get back to you, usually within 1–2 business days.
Please include your device model, iOS version and app version, and describe what happened. Never send us your passcode.