# Twenty frame for iPad

> Virtual math manipulative for exploring addition and subtraction on iPad. (iPhone/iPad app by Christian Urff.)

- Source: https://appshunter.io/ios/app/twenty-frame-for-ipad/id556083423 (this page in markdown: same URL + `.md`)
- Developer: [Christian Urff](https://appshunter.io/developer/415894463)
- Category: Education, Games
- Price: $3.99
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 6.0 · 18 MB
- Languages: American English, German (Germany)
- Released: 2012-09-04
- Data updated: 2026-07-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/twenty-frame-for-ipad/id556083423/reviews.md

## What is Twenty frame for iPad?

You can check the free online-version of the twenty frame at www.lernsoftware-mathematik.de/prototypen/zwanzigerfeld.html before

The learning tool provides a virtual math manipulative for exploring and understanding basic math operations (addition, subtraction). You can manipulate the virtual double-sided counts in a five-structured twenty frame and observe the effects to the addition or subtraction term. Over the observation and manipulation of multiple representations the child gets a (deeper) unterstanding of the basic math operations. This helps especially children with dyscalculie..

To see how to use the twenty frame and all it's possibilities, watch the video at: http://www.youtube.com/watch?v=mWAxGLGoVDo.

The virtual tool doesn't provide tasks, but it can be used to solve and visualize school or homework tasks.

## Key features

- Virtual math manipulative
- Explore addition and subtraction
- Manipulate double-sided counters
- Visualize mathematical concepts
- Supports children with dyscalculia


## Frequently asked questions about Twenty frame for iPad

### What is Twenty frame for iPad?

Twenty frame for iPad is a virtual math manipulative designed to help children understand basic math operations like addition and subtraction through interactive exploration and visualization.

### How does Twenty frame for iPad help with learning math?

It allows children to manipulate virtual counters in a twenty frame, observing how these actions affect addition and subtraction terms, fostering a deeper understanding of fundamental math concepts.

### Is Twenty frame for iPad suitable for children with dyscalculia?

Yes, the app is specifically designed to assist children with dyscalculia by providing a visual and interactive way to grasp basic math operations.

### Does Twenty frame for iPad offer pre-made math tasks?

No, the virtual tool does not provide pre-made tasks. Instead, it serves as a resource to help children solve and visualize their own school or homework assignments.

### What devices does Twenty frame for iPad support?

Twenty frame for iPad is designed exclusively for iPads, offering a focused learning experience on this platform.

### What is the age rating for Twenty frame for iPad?

The app has an age rating of 4+, making it suitable for young children beginning their math education.

### How often is Twenty frame for iPad updated?

The app was last updated on June 9, 2017, with version 2.7. It has not received updates since then.

### Does Twenty frame for iPad have ads?

No, Twenty frame for iPad does not contain advertisements, providing an uninterrupted learning experience for users.

## Version history (last 5 releases)

### 2.7 — 2017-06-09

This update from Apple will improve the functionality of this app. No new features are included.

Ready for iOS 11 (64 Bit)!

### 2.6 — 2014-10-14

Ready for iOS8

### 1.2 — 2013-01-03

* iPad Retina support
* performance improvements
* ui tweaks and bug fixes (thanks for all the user emails)

### 1.1 — 2012-09-09

added information about how to use this virtual manipulative into the app.

### 1.0 — 2012-09-03

No release notes.

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## More apps by Christian Urff

- [hundreds frame](https://appshunter.io/ios/app/hundreds-frame/id423532149)
- [Finger Numbers](https://appshunter.io/ios/app/finger-numbers/id455497654)
- [Numbers up to 100](https://appshunter.io/ios/app/numbers-up-to-100/id481817245)
- [Math Tablet](https://appshunter.io/ios/app/math-tablet/id574825573)
- [Calculation Triangle](https://appshunter.io/ios/app/calculation-triangle/id575736731)

All apps by Christian Urff: https://appshunter.io/developer/415894463

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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 2026-07-08.*