# PreTip: Tip Calculator — Receipt scanner Tip calculator > Receipt scanner and tip calculator based on pre-tax amount. (iPhone/iPad app by Shu Wang.) - Source: https://appshunter.io/ios/app/pretip-tip-calculator/id6761618743 (this page in markdown: same URL + `.md`) - Developer: [Shu Wang](https://appshunter.io/developer/1890481985) - Category: Utilities, Finance - Price: Free - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 17.6 · 5 MB - Languages: American English - Released: 2026-04-08 - Data updated: 2026-07-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/pretip-tip-calculator/id6761618743/reviews.md ## What is PreTip? PreTip makes tipping simple, fast, and accurate. Just scan your receipt and instantly get the right tip — calculated based on the pre-tax amount. No more over-tipping on tax. No more second-guessing. PreTip is designed for real-world receipts, where things aren’t always clear. Key Features: • Scan receipts and auto-detect subtotal, tax, and total • Calculate tips based on pre-tax amount • Detect when gratuity is already included to help avoid double tipping • Support service fees and surcharges in your calculation • Fast, minimal, and easy-to-use interface • Lock Screen widget for instant access Whether you're dining out or splitting a bill, PreTip helps you tip with confidence and clarity. ## Key features - Scan receipts to auto-detect amounts - Calculate tips on pre-tax total - Detect included gratuity - Support service fees and surcharges - Fast and easy-to-use interface - Lock Screen widget ## Frequently asked questions about PreTip ### How does PreTip calculate tips? PreTip calculates tips based on the pre-tax amount of your receipt. It scans the receipt to detect the subtotal, tax, and total, then applies your desired tip percentage to the subtotal. ### Can PreTip detect if gratuity is already included? Yes, PreTip is designed to detect when gratuity is already included on a receipt. This helps users avoid double-tipping and ensures they are only adding an additional tip if appropriate. ### Does PreTip support service fees or surcharges? Yes, PreTip supports the inclusion of service fees and surcharges in its tip calculations. This ensures that the final tip amount accurately reflects all charges on the receipt. ### Is PreTip available on Android devices? Currently, PreTip is only supported on iPhone devices. The app is designed to work seamlessly with iOS features like the Lock Screen widget. ### How often is PreTip updated? PreTip was last updated on April 10, 2026, with version 1.1. Updates typically address bug fixes and performance improvements to ensure a smooth user experience. ### What is the age rating for PreTip? PreTip has an age rating of 4+. This indicates that the app is suitable for users of all ages and does not contain content that would be inappropriate for children. ### Does PreTip have ads? No, PreTip does not contain advertisements. The app is completely ad-free, allowing for an uninterrupted and focused experience when calculating tips. ### What do users like about PreTip? Based on the available rating of 5.0 stars from 2 ratings, users likely appreciate the app's simplicity, accuracy, and the convenience of scanning receipts for quick tip calculations. ## Version history (last 2 releases) ### 1.1 — 2026-04-10 • Detect when gratuity is already included to help avoid double tipping • Added support for service fees and surcharges in calculations • New Lock Screen widget for faster access • Improved receipt parsing and tip accuracy • UI refinements for a cleaner experience • Support all iphone types ### 1.0 — 2026-04-08 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*