Receipt guide

Receipts on your phone: how to scan and organise receipts and warranties

A paper receipt fades, gets lost at the bottom of a drawer or stays in your wallet just when you need it. In this guide we explain how to digitise and organise receipts and warranties on your phone, how to back them up and which receipts are worth keeping. Finally, we show how the Kvitox app does it.

Written by Aleksi Kiltala, Kiltala Oy · Published 6 November 2026

Short answer

Scan or photograph a receipt right after your purchase, because the text on thermal paper can fade before the warranty ends. Keep email receipts and PDF invoices in the same place, set a return window and warranty for each product, and attach the warranty card and manual. Make regular backups. The Finnish Competition and Consumer Authority recommends keeping receipts and bank statements for at least your biggest purchases for three years. Kvitox reads the receipt text on your phone and reminds you before a return window or warranty ends.

KvitoxiOS · Android

Download on theApp Store Get it onGoogle Play About the app

Why digitise

Why keep your receipts on your phone

Thermal paper fades

According to the Finnish Competition and Consumer Authority, the text on a receipt printed on thermal paper can disappear before the warranty ends. A scanned receipt stays readable.

Find receipts by searching

When a receipt is saved as text, you can find it by shop, product or serial number instead of digging through drawers.

Deadlines are not forgotten

Return windows and warranties are easy to forget. When they are marked on the receipt, an app can remind you in time.

Everything in one place

You can keep the warranty card, manual and a photo of the product next to the receipt. When a product breaks, everything you need is at hand.

Scanning

How to save a receipt in Kvitox

Kvitox reads the receipt text right on your phone. These steps help the receipt save correctly.

Scan right after your purchaseThe document scanner crops the receipt and straightens the image. Place the receipt on a flat surface in good light so the whole receipt is visible. On iPhone you can scan a long receipt as several pages; on Android the scanner saves one page.
Import digital receipts and invoicesImport a photo from your library or a PDF invoice. You can also share a PDF or image to Kvitox from another app, such as your email. The first five pages of a PDF are read.
Check the recognised detailsKvitox fills in the shop, date, total, currency and products, and for products details such as the serial number, IMEI and EAN code if they appear on the receipt. Always check the details. The app warns you if the same receipt seems to be saved already.
Set the return window and warrantyIf the receipt shows a return window or warranty, Kvitox fills it in. Otherwise choose a return window of 14, 30, 60 or 90 days or your own date, and a warranty of 6 months, 1, 2, 3 or 5 years or your own date.
Add attachmentsAttach up to ten JPEG, PNG or PDF files to a receipt, such as a warranty card, manual or photo of the product. Each attachment can be up to 25 megabytes.

Organising

Organise receipts so you can find them

As receipts pile up, organisation makes the difference. In Kvitox you can organise and search receipts in many ways.

Search across all fields

Search by shop, product, note, receipt text, serial number, IMEI, EAN code or receipt number.

Products separately

Every product on a receipt can have its own return window and warranty. A line with several pieces can be split into separate products.

Expiring soon

Returns are highlighted when less than a week of the return window is left, and the badge turns red when less than three days remain.

Currencies

Kvitox supports 25 currencies. Your device’s currency is the default, and every receipt can have its own currency.

Folders (Pro)

With Kvitox Pro you can organise receipts into folders up to four levels deep, for example by home, cottage or hobbies.

Backup

Backups and switching phones

Kvitox stores receipts only on your phone, with no account or server. That is why you should take care of backups yourself.

Make a backup fileYou can restore the backup file on a phone with the other operating system too, for example from iPhone to Android. The app reminds you on its home screen to make a backup.
Keep the backup safeThe backup is not encrypted, so keep it somewhere others cannot access.
Switching phonesThe app includes instructions for moving from iPhone to iPhone, Android to Android and from one operating system to the other.
CSV export and App LockExport your data to a CSV file with one row per product. You can lock the app with Face ID, Touch ID, a passcode or Android biometrics, immediately or after 1, 5 or 15 minutes.

Keeping

Which receipts should you keep and for how long?

The Finnish Competition and Consumer Authority recommends keeping receipts and bank statements for at least your biggest purchases for three years, and credit card receipts for three years after the card company has billed the purchase. Because the seller’s liability for defects can last longer than the warranty, keep the receipt for an expensive product for its whole lifetime.

A receipt is not the only proof: you can complain about a faulty product without one, and show where and when you bought it with, for example, a bank statement. For a shop’s voluntary exchange or return policy, however, the shop may require the receipt. Read more in our guide Warranty, seller’s liability and returns in Finland.

FAQ

Frequently asked questions

Why do receipts fade?

Many receipts are printed on thermal paper, and according to the Finnish Competition and Consumer Authority the text can disappear before the warranty ends. Scan or photograph the receipt right after your purchase.

Is a scanned receipt enough if a product is faulty?

You can complain about a faulty product even without the original receipt, and show where and when you bought it in other ways, such as a bank statement. A scanned receipt helps show the purchase details. For a shop’s voluntary exchange or return policy, the shop may require the receipt.

Does Kvitox read receipts without an internet connection?

Yes. Text recognition happens on your phone with Google’s ML Kit, and Kvitox has no account, servers, ads or analytics. ML Kit may send anonymous diagnostics to Google.

Can I import email receipts into Kvitox?

Yes. Share a PDF or image from your email or files to Kvitox, or import a PDF in the app. Kvitox has no email forwarding.

How many receipts does the free version hold?

Five. Every other feature except folders is free. Kvitox Pro is a one-time purchase that removes the receipt limit and adds folders. Its price is shown in the app store.

How do I move my receipts to a new phone?

Make a backup file on your old phone and restore it on the new one. The file can also be restored on a phone with the other operating system. The app includes instructions for switching phones.

How long should I keep receipts?

The Finnish Competition and Consumer Authority recommends keeping receipts and bank statements for at least your biggest purchases for three years. Keep the receipt for an expensive product for its whole lifetime, because the seller’s liability can last longer than the warranty.

Sources

The information on keeping receipts was checked against these sources on 6 November 2026. Kvitox’s features were checked against the app’s source code.

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