# GeCla - Symmetry — Rosettes, Friezes and Patterns > Generates and classifies patterns with chosen symmetry types. (iPhone/iPad app by Associação Atractor.) - Source: https://appshunter.io/ios/app/gecla-symmetry/id1489697357 (this page in markdown: same URL + `.md`) - Developer: [Associação Atractor](https://appshunter.io/developer/1116979000) - Category: Education - Price: Free - Age rating: 4+ - Requires: iOS 11.0 · 28 MB - Languages: English, French, German, Italian, Portuguese, Spanish - Released: 2022-05-19 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/gecla-symmetry/id1489697357/reviews.md ## What is GeCla? GeCla, short for Generator and Classifier, allows the user to generate a pattern, a frieze or a rosette with a previously chosen kind of symmetry starting from an asymmetric motif. It also allows the classification (with or without help from the program) of the patterns, friezes, rosettes obtained in this manner. In the end, the program provides a report of the errors committed. GeCla already has versions in five (PT, EN, IT, GE, SP) languages. The generator writes encoded information about the existing symmetries in the jpg image file generated. Then the classifier reads and interprets this coded information, which allows it (according to the level of aid chosen) to give information about how the classification process is going, preventing wrong choices, or only indicating at the end whether the classification is correct and, if not, indicating the first mistake. GeCla also includes a competition option. In it, each player generates a pre-agreed number of images and then both exchange images and each classifies the other's images. All steps are managed by the program, which in the end provides a report on eventual mistakes. ## Key features - Generate patterns with chosen symmetry - Classify patterns, friezes, and rosettes - Assisted classification with error reporting - Competition mode for two players - Multi-language support (PT, EN, IT, GE, SP) - Symmetry information encoded in image files ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/gecla-symmetry/id1489697357/reviews.md ### 5/5 — Fun and enlightening *2026-01-21* This brilliant little app lets you do two complementary things: First, it lets you take any image and convert into a symmetrical pattern — a “tiling” or “wallpaper pattern”. Second, it lets you take any such pattern and figure out its symmetries. For the latter, it provides just the right amount of guidance, helping you to work systematically but leaving it to you to find all the symmetries. I especially like how, as you search for each symmetry, the app shows a ghost image of the transformed pattern on top of the original: when the ghost and the original match up, you've found a symmetry! Lots of fun, and an effective introduction to the concept of symmetry and how it appears in the world. ## Frequently asked questions about GeCla ### What is GeCla used for? GeCla is used to generate patterns, friezes, and rosettes based on chosen symmetry types. It also helps users classify these patterns and provides feedback on any errors made during the process. ### How does GeCla help with learning symmetry? GeCla aids learning by allowing users to actively create and then classify patterns. The program offers assistance during classification, guiding users and reporting mistakes to reinforce understanding of symmetry concepts. ### Can GeCla be used offline? The provided data does not specify offline functionality. However, as a generative and classification tool, it is likely designed to function without a constant internet connection once installed. ### What devices does GeCla support? GeCla is available for iPhone, iPad, and iPod devices, indicating it is optimized for iOS platforms. ### How often is GeCla updated? The app was last updated on October 18, 2023, with version 2.07.06. This suggests regular updates to maintain functionality and potentially add new features. ### Does GeCla have ads? No, GeCla does not contain advertisements. The app is free to download and use without any ad interruptions. ### What languages does GeCla support? GeCla is available in five languages: Portuguese (PT), English (EN), Italian (IT), German (GE), and Spanish (SP), making it accessible to a global audience. ### Is GeCla suitable for young children? GeCla has an age rating of 4+, suggesting it is appropriate for young children to explore basic concepts of patterns and symmetry under supervision. ## Version history (last 5 releases) ### 2.07.06 — 2023-10-18 Some improvements were introduced and small errors were corrected. ### 2.07.04 — 2023-07-03 Some improvements were made and minor bugs fixed ### 2.06.06 — 2022-12-27 Added new features in Generator and Classifier ### 2.05.03 — 2022-07-21 Inclusion of some improvements and minor bug fixes ### 2.04.02 — 2022-05-20 No release notes. ## Apps similar to GeCla | App | Rating | Price | Category | | --- | --- | --- | --- | | [Intuitivo](https://appshunter.io/ios/app/intuitivo/id6449191657) | — | Free | Education | | [Colégio Valsassina](https://appshunter.io/ios/app/colegio-valsassina/id1486190301) | — | Free | Education | | [KaleidoTile](https://appshunter.io/ios/app/kaleidotile/id1374849164) | 4.1 (7) | Free | Education | | [CountryGuessr: World Discovery](https://appshunter.io/ios/app/countryguessr-world-discovery/id6755329267) | — | Free | Education | | [Lexico Compreender (pt)](https://appshunter.io/ios/app/lexico-compreender-pt/id1080615664) | — | $24.99 | Education | | [French learning-Courses,Dialog](https://appshunter.io/ios/app/french-learning-coursesdialog/id6753212063) | 3.0 (2) | Free | Education | ## More apps by Associação Atractor - [AtrMini - Jogos de matemática](https://appshunter.io/ios/app/atrmini-jogos-de-matematica/id1116981341) - [GeClaMini](https://appshunter.io/ios/app/geclamini/id1660556269) All apps by Associação Atractor: https://appshunter.io/developer/1116979000 ## Related topics [frieze](https://appshunter.io/ios/topics/frieze) --- *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 2026-06-04.*