# Fourier Series Visualiser — Fun Math Epicycle Drawings > Free educational app for visualizing Fourier series with interactive drawing and SVG import. (iPhone/iPad app by Jack Finnis.) - Source: https://appshunter.io/ios/app/fourier-series-visualiser/id1582827502 (this page in markdown: same URL + `.md`) - Developer: [Jack Finnis](https://appshunter.io/developer/1633101066) - Category: Education, Graphics & Design - Price: Free - Rating: 3.00/5 from 4 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 2 MB - Languages: American English - Released: 2021-08-30 - Data updated: 2026-07-28 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/fourier-series-visualiser/id1582827502/reviews.md ## What is Fourier Series Visualiser? Your new addictive drawing app that teaches you about one of the most important algorithms in maths. Completely free with no ads or in-app purchases. KEY FEATURES Draw any shape with your finger and watch it transform into a beautiful Fourier epicycle drawing. Adjust the number of Fourier coefficients to see different levels of approximation Import SVG files to transform existing artwork Visualise the maths behind complex Fourier series analysis Share your creations with your friends PERFECT FOR STUDENTS - Learn about Fourier transforms and signal processing TEACHERS - Demonstrate mathematical concepts in the classroom MATHS ENTHUSIASTS - Explore complex mathematical ideas ANYONE who wants to create beautiful drawings and learn about one of the most important algorithms in maths. ## Key features - Draw custom shapes for epicycle generation - Adjust Fourier coefficients for approximation levels - Import SVG files for artwork transformation - Visualize complex Fourier series analysis - Share drawings with friends ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/fourier-series-visualiser/id1582827502/reviews.md ### 3/5 — What does it do? *2023-03-31, version 1.1* I don't understand what this app is supposed to do. Is it just a drawing program? I cannot find any action buttons, such as "Create Fourier transform." The description says "I will create..." -- is that "I" the app or the developer? ### 5/5 — Very Nice *2022-12-05* I enjoy the apps simple interface. It gets it done clean and simple. Great learning tool and fun to use. I look forward to it evolutions. Jim ### 3/5 — Wish there was a numerical output *2022-07-12, version 1.0* I wish there could be an option to see the coefficients (radius and initial angle) for each vector in the result. ## Frequently asked questions about Fourier Series Visualiser ### What is Fourier Series Visualiser? Fourier Series Visualiser is a free educational app that allows you to draw any shape and see it transformed into a beautiful Fourier epicycle drawing. It helps visualize the mathematical concepts behind Fourier series analysis. ### Is Fourier Series Visualiser free to use? Yes, Fourier Series Visualiser is completely free to use. It does not contain any advertisements or in-app purchases, making it a fully accessible educational tool. ### Can I import my own designs into Fourier Series Visualiser? Yes, you can import SVG files into Fourier Series Visualiser. This allows you to transform your existing artwork into unique epicycle drawings and explore their mathematical representations. ### What devices does Fourier Series Visualiser support? Fourier Series Visualiser is available for iPhone and iPad devices. It is designed to provide an interactive learning experience on Apple's mobile platforms. ### How does Fourier Series Visualiser help with learning? The app helps users learn about Fourier transforms and signal processing by allowing them to adjust the number of Fourier coefficients. This demonstrates different levels of approximation and the underlying mathematical principles. ### What is the age rating for Fourier Series Visualiser? Fourier Series Visualiser has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger learners interested in mathematics and art. ### How often is Fourier Series Visualiser updated? The latest version of Fourier Series Visualiser is 2.2, and it was last updated on October 21, 2025. This suggests regular updates to improve functionality and add features. ### What do users think of Fourier Series Visualiser? Fourier Series Visualiser has an average rating of 3.0 stars from 4 ratings. While this indicates a generally positive reception, the limited number of ratings suggests user feedback is still developing. ## Version history (last 5 releases) ### 2.2 — 2025-10-21 Bug fixes and improvements. ### 2.1 — 2025-10-16 Bug fixes and improvements. ### 2.0 — 2025-10-07 Updated for iOS 26 ### 1.2 — 2024-11-10 New example SVG files to experiment with Simplified UI ### 1.1 — 2022-12-05 You can now import and squigglify SVG files, copy the Fourier equation coefficients (initial angle and radius), save pictures of your squiggles to your photo library, change the thickness and colour of the outline, use up to 500 epicycles to approximate outlines, and much more! ## Apps similar to Fourier Series Visualiser | App | Rating | Price | Category | | --- | --- | --- | --- | | [plotXpose](https://appshunter.io/ios/app/plotxpose/id6636548635) | — | Free | Education | | [LingoBurst: Learn Spanish](https://appshunter.io/ios/app/lingoburst-learn-spanish/id6756483021) | — | Free | Education | | [Swedish with Fabulo](https://appshunter.io/ios/app/swedish-with-fabulo/id6753868259) | — | Free | Education | | [Tea Bag Index \| SPOTTERON](https://appshunter.io/ios/app/tea-bag-index-spotteron/id1465181150) | — | Free | Education | | [Loughborough Wave Lab](https://appshunter.io/ios/app/loughborough-wave-lab/id402424695) | 4.5 (13) | Free | Education | | [MathCode Academy](https://appshunter.io/ios/app/mathcode-academy/id6742363397) | — | $6.99 | Education | ## More apps by Jack Finnis - [NCCR](https://appshunter.io/ios/app/nccr/id1580773042) - [MyMap: Workout Tracker](https://appshunter.io/ios/app/mymap-workout-tracker/id1581278416) - [Life: Conway's Game of Life](https://appshunter.io/ios/app/life-conways-game-of-life/id1581284326) - [QuickFire Questions](https://appshunter.io/ios/app/quickfire-questions/id1604276626) - [Live News Headlines](https://appshunter.io/ios/app/live-news-headlines/id1665239001) All apps by Jack Finnis: https://appshunter.io/developer/1633101066 --- *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 2026-07-28.*