# Tupper — self-referential formula

> self-referential formula (iPhone/iPad app by Ferra Solutions (Pty) Ltd.)

- Source: https://appshunter.io/ios/app/tupper/id1557490476 (this page in markdown: same URL + `.md`)
- Developer: [Ferra Solutions (Pty) Ltd](https://appshunter.io/developer/964514020)
- Category: Education, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 14.0 · 3 MB
- Languages: English
- Released: 2021-03-11
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/tupper/id1557490476/reviews.md

## What is Tupper?

Tupper lets you draw an image using Tupper's self-referential formula.
You can enter a very large number - or calculate one using the included calculator.
Yes, Tupper includes a powerful arbitrary precision calculator, accurate to 10,000 digits.
Tupper will draw the image that the number produces using Tupper's formula.
Tupper also allows you to edit an image directly and then to retrieve its number.
You can copy the image or number out and send it to your friends.
Have some fun by pasting in an iconic image and getting its number.
Website and support https://tupper.ferrasolutions.com


## Version history (last 1 release)

### 1.2.1 — 2021-03-16

- Better quality when pasting in an image
- Better handling of dark mode

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## More apps by Ferra Solutions (Pty) Ltd

- [Nap1](https://appshunter.io/ios/app/nap1/id964514021)
- [fdm ferra data models](https://appshunter.io/ios/app/fdm-ferra-data-models/id1214202805)
- [ferra value my business](https://appshunter.io/ios/app/ferra-value-my-business/id1538135904)
- [Pyramid Connect](https://appshunter.io/ios/app/pyramid-connect/id1543944901)

All apps by Ferra Solutions (Pty) Ltd: https://appshunter.io/developer/964514020

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*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 2026-05-19.*