Receipts · Warranties · Return deadlines

Keep the proof.
Skip the panic.

Proofbox keeps a photo of each receipt, works out when the return window closes and when the warranty ends, and reminds you before it is too late. Everything stays on your phone.

Coming soon on Google Play See how it works
  • Works fully offline
  • No account
  • No ads
  • Android

What it does

A shoebox of receipts, minus the shoebox.

Six things Proofbox does, and nothing it does not.

Snap the receipt

Take a photo with your camera app or pick one from your gallery. The picture is stored only inside Proofbox's private folder on your phone.

Dates, done for you

Enter the purchase date, the return window in days and the warranty in months. Proofbox works out “return by” and “warranty until” and stamps them on the item.

Reminders before it is too late

A local notification 3 days before a return deadline and 30 days before a warranty ends. Lead times are yours to change, per item or for everything.

Deadlines on a timeline

A month-by-month view of every return and warranty date, upcoming or past. Tap a row to jump to the item.

Find it by store

Purchases are grouped by store, with a search field that filters by item or store name. Long-press to select several and tidy up.

Your export, your backup

Export everything, photos included, to a ZIP file wherever you choose. Import it on a new phone. There is no cloud in between.

How it works

Three steps, about thirty seconds.

Add the purchase

Tap Add, snap or choose the receipt, type the item and the store, and the price if you like.

Set the windows

Pick the return window and the warranty length with quick chips, or type your own. Two stamps preview as you type.

Get reminded

Proofbox checks your deadlines once a day and nudges you before each one passes. Items due within 30 days sit on the “Due soon” shelf.

Privacy

Nothing leaves your phone. Not even a ping.

Proofbox does not declare the Internet permission, so it cannot send anything anywhere. There is no account, no analytics and no advertising ID. The only permission it asks for is to show you notifications, and you can say no.

Read the full Privacy Policy · How to delete your data

Privacy receipt

  • Internet permissionNone
  • Account or sign-inNone
  • Ads or advertising IDNone
  • Analytics or crash SDKsNone
  • Location, contacts, camera permissionNot requested
  • Permissions requestedNotifications only
  • Where photos liveApp-private storage
Data collected by us0

Questions

Frequently asked

Does Proofbox need an internet connection?

No. The app does not declare the Android Internet permission, so it cannot connect to the network at all. Everything, including reminders, runs on the device.

Where are my receipt photos stored?

In Proofbox's private app folder on your phone, downscaled to save space. Other apps cannot read that folder. Photos you take with the camera app for Proofbox go straight into that folder; photos you pick from your gallery are copied there and the original is left untouched.

How do I move to a new phone?

Use Settings → Backup → Export to save a ZIP file (a JSON list of your items plus the photos) wherever you choose, then Settings → Backup → Import on the new phone. Android's own device backup may also include Proofbox's data if you have backup turned on in your Android settings.

Why does it ask to show notifications?

So it can remind you before a return window closes or a warranty ends. Proofbox checks your deadlines about once a day using Android's WorkManager; it does not use exact alarms. If you decline, the app still works, it just stays quiet.

Does Proofbox know my legal return rights?

No. It only counts the days and months you enter. Return windows and warranty terms differ by store and country, so check the receipt or the seller's policy and type in what applies to you.

Keep every receipt. Never miss a return.

Proofbox is being prepared for Google Play. In the meantime, questions are welcome at proofbox@kubeharbor.space.

Coming soon on Google Play