# Dasher Mobile

> Zooming interface for text input using predictive language models. (iPhone/iPad app by Ace Centre.)

- Source: https://appshunter.io/ios/app/dasher-mobile/id1304772617 (this page in markdown: same URL + `.md`)
- Developer: [Ace Centre](https://appshunter.io/developer/1304772616)
- Category: Utilities, Medical
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 38 MB
- Languages: American English
- Released: 2017-12-27
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/dasher-mobile/id1304772617/reviews.md

## What is Dasher Mobile?

Dasher is a zooming interface. You point where you want to go, and the display zooms in wherever you point. The world into which you are zooming is painted with letters, so that any point you zoom in on corresponds to a piece of text. The more you zoom in, the longer the piece of text you have written. You choose what you write by choosing where to zoom.

To make the interface efficient, we use the predictions of a language model to determine how much of the world is devoted to each piece of text. Probable pieces of text are given more space, so they are quick and easy to select. Improbable pieces of text (for example, text with spelling mistakes) are given less space, so they are harder to write. The language model learns all the time: if you use a novel word once, it is easier to write next time.

A big advantage of Dasher over other predictive text-entry interfaces that offer word-completions to the user is that it is mode-free: the user does not need to switch from a writing mode to an "accept-model-predictions" mode.

Another advantage is that it is easy to train the model on any writing style: simply load up an example file, then write away! More information can be found here: http://www.inference.org.uk/dasher/ 

Note that this is a port of the original Dasher for iPhone which no longer runs on iOS 11. This port has been funded by donations to the Ace Centre. To support this, ask for feature requests and help fund future development please see https://acecentre.org.uk/project/dasher-for-ios/

## Key features

- Zooming interface for text entry
- Predictive language model
- Mode-free operation
- Customizable writing style training
- Efficient text selection


## Frequently asked questions about Dasher Mobile

### What is Dasher Mobile?

Dasher Mobile is a unique text input interface that uses a zooming display to allow users to select letters. It leverages a language model to predict probable text, making it efficient for writing.

### How does Dasher Mobile's zooming interface work?

You point where you want to go, and the display zooms in on that area, which is painted with letters. The more you zoom in, the longer the piece of text you have written. Your choices of where to zoom determine what you write.

### What makes Dasher Mobile different from other predictive text interfaces?

A key advantage is that Dasher Mobile is mode-free, meaning users don't need to switch between writing and accepting model predictions. It also allows for easy training on any writing style by loading example files.

### Can I train Dasher Mobile on my own writing style?

Yes, you can train the language model on your specific writing style by loading an example file. This makes it easier to write novel words or phrases you use frequently.

### What devices does Dasher Mobile support?

Dasher Mobile is designed for iPhone and iPod devices. It was originally a port of the iPhone version that no longer runs on iOS 11.

### What is the age rating for Dasher Mobile?

Dasher Mobile has an age rating of 4+, making it suitable for a wide range of users.

### Is Dasher Mobile free to use?

Yes, Dasher Mobile is available for free. This port was funded by donations to the Ace Centre to support future development.

### Does Dasher Mobile have ads?

No, Dasher Mobile does not contain advertisements. It is a free application supported by donations.

## Version history (last 1 release)

### 2.5.3 — 2017-12-27

This app has been updated by Apple to display the Apple Watch app icon.

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## More apps by Ace Centre

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All apps by Ace Centre: https://appshunter.io/developer/1304772616

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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 2026-06-01.*