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About
This app verifies the arithmetic on restaurant bills, ensuring your tip is calculated correctly. It identifies common errors like tipping on sales tax or accidentally double-tipping, and allows manual correction of figures.
✓Reads and verifies restaurant receipts
✓Detects incorrect tip calculations
✓Identifies double-tipping traps
✓Reconciles bill subtotal, tax, and total
✓Allows manual correction of figures
✓Offline processing with no data sharing
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What's New in CheckSpector
2.0
August 27, 2026
User reviews
FAQ
What is CheckSpector?
CheckSpector is a finance app designed to verify the arithmetic on restaurant bills. It helps users ensure their tip is calculated correctly and identifies common billing errors.
How does CheckSpector ensure my tip is correct?
It photographs your receipt and checks calculations, flagging issues like suggested gratuities based on the total including tax, or automatic gratuities that are already present.
Can CheckSpector handle bills that don't add up?
Yes, CheckSpector reconciles the subtotal, tax, and total amounts on your bill. If they disagree, it will inform you which figure is inconsistent.
What if a figure on my bill is hard to read?
CheckSpector allows you to tap on any figure it reads and retype it manually. All calculations will then update based on your corrections.
Does CheckSpector save my receipt data?
No, CheckSpector never saves your receipt photographs or any bill data to a server. All processing is done on your device, and data is deleted when you remove the app.
Is CheckSpector free to use?
Yes, CheckSpector is available for free. It does not have any in-app purchases or advertisements.
What devices does CheckSpector support?
CheckSpector is currently supported on iPhone devices.
How often is CheckSpector updated?
The latest version, 2.0, was released on August 27, 2026, indicating recent development activity.