# Piranhas - Find the cheapest store for your books > Compare book prices across multiple online stores, including shipping and currency. (iPhone/iPad app by Matias Korhonen.) - Source: https://appshunter.io/ios/app/piranhas-find-the-cheapest-store-for-your-books/id1020936236 (this page in markdown: same URL + `.md`) - Developer: [Matias Korhonen](https://appshunter.io/developer/787305374) - Category: Shopping, Books - Price: Free - Rating: 5.00/5 from 6 App Store ratings · 2 written reviews indexed - Age rating: 17+ - Requires: iOS 8.4 · 24 MB - Languages: American English, Danish, French (France), German (Germany), Japanese, European Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan) - Released: 2015-09-20 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/piranhas-find-the-cheapest-store-for-your-books/id1020936236/reviews.md ## What is Piranhas? Save money by comparing prices between Amazon stores, the Book Depository, and Wordery. It's super easy because we calculate the shipping costs and currency conversions for you. Search for books by name or scan the barcode on the back of a book. Features: • Scan ISBN barcodes from books • Supports Split View and Slide Over on iOS 9 iPads • Supports iOS 9's new in-app browser • Shipping charge estimates • Automatic currency conversions Supported stores: • Amazon.com (United States) • Amazon.co.uk (United Kingdom) • Amazon.ca (Canada) • Amazon.de (Germany) • Amazon.es (Spain) • Amazon.fr (France) • Book Depository • Wordery ## Key features - Compare prices across multiple stores - Automatic shipping cost calculation - Automatic currency conversion - Search books by name - Scan ISBN barcodes - Supports Split View and Slide Over on iPad ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/piranhas-find-the-cheapest-store-for-your-books/id1020936236/reviews.md ### 5/5 — Great app *2018-07-12, version 1.2.1* I love this App. I hope one day wishlists or connection with Goodreads lists would be added. ### 5/5 — Save money and time *2017-12-31, version 1.2.1* First time using it and definitely a hit.Cannot be easier and faster,specially for rare books and comics. ## Frequently asked questions about Piranhas ### What stores does Piranhas compare prices for? Piranhas compares prices from Amazon stores in the US, UK, Canada, Germany, Spain, and France, as well as Book Depository and Wordery. ### How does Piranhas help me save money on books? Piranhas automatically calculates shipping costs and currency conversions for each store, presenting you with the final price to help you find the cheapest option. ### Can I search for books using their ISBN barcode with Piranhas? Yes, Piranhas allows you to scan ISBN barcodes directly from books, making it easy to find specific titles and compare their prices. ### What devices is Piranhas compatible with? Piranhas is compatible with iPhone, iPad, and iPod devices. ### How often is Piranhas updated? The latest version, 1.2.1, was released on December 4, 2015. The app was initially released on September 20, 2015. ### What is the age rating for Piranhas? Piranhas has an age rating of 17+, which is unusual for a shopping app and may indicate content not suitable for younger users. ### Does Piranhas have ads? The provided data does not specify if Piranhas contains advertisements. ### What is the user rating for Piranhas? Piranhas has an excellent rating of 5.0 stars based on 6 user ratings. ## Version history (last 4 releases) ### 1.2.1 — 2015-12-04 This app has been updated by Apple to display the Apple Watch app icon. If you're enjoying Piranhas, an App Store review would be highly appreciated! New in 1.2.1: • Enables universal links + all the improvements from version 1.2.0: • The Amazon iOS app is now required for Amazon purchases on iOS • Improved handling of iTunes links • Opens the book directly in the Goodreads app (if installed) when tapping the book rating • Fixes a rare crash that sometimes occurred when selecting the region on first launch ### 1.2.0 — 2015-11-16 If you're enjoying Piranhas, an App Store review would be highly appreciated! • The Amazon iOS app is now required for Amazon purchases on iOS • Improved handling of iTunes links • Opens the book directly in the Goodreads app (if installed) when tapping the book rating • Fixes a rare crash that sometimes occurred when selecting the region on first launch + all the improvements from version 1.1.0: • Nicer, native book cover previews • Easily share your search results • Fixes a bug with in-app notifications on iPads when using Split View or Slide Over on iOS 9 • Fixes the launch screen on iOS 9.0.2 ### 1.1.0 — 2015-10-14 • Nicer, native book cover previews • Easily share your search results • Fixes a bug with in-app notifications on iPads when using Split View or Slide Over on iOS 9 • Fixes the launch screen on iOS 9.0.2 ### 1.0.0 — 2015-09-20 No release notes. ## Apps similar to Piranhas | App | Rating | Price | Category | | --- | --- | --- | --- | | [DealOz](https://appshunter.io/ios/app/dealoz/id1101706271) | 2.7 (11) | Free | Shopping | | [Weed Porter Driver](https://appshunter.io/ios/app/weed-porter-driver/id1599715968) | — | Free | Shopping | | [Bazar - Your Local Marketplace](https://appshunter.io/ios/app/bazar-your-local-marketplace/id1552353064) | 4.6 (18) | Free | Shopping | | [Dexter Price Alert for Amazon](https://appshunter.io/ios/app/dexter-price-alert-for-amazon/id1035665126) | 4.0 (32) | Free | Shopping | | [Sell it Back: Cash for Books](https://appshunter.io/ios/app/sell-it-back-cash-for-books/id1474080128) | 1.0 (5) | Free | Shopping | | [GiantMouse](https://appshunter.io/ios/app/giantmouse/id1599169816) | 4.9 (168) | Free | Shopping | ## More apps by Matias Korhonen - [Beer Styles](https://appshunter.io/ios/app/beer-styles/id787305371) - [Fillarit](https://appshunter.io/ios/app/fillarit/id1239169832) All apps by Matias Korhonen: https://appshunter.io/developer/787305374 --- *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 2026-06-10.*