# iDotMatrix vs QR Studio Ultra

The clearest difference is in-app purchases: iDotMatrix at none against QR Studio Ultra's 1. iDotMatrix also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. QR Studio Ultra sells 1 one-off in-app purchase. iDotMatrix asks for nothing beyond the download.

## The numbers

| Metric | iDotMatrix | QR Studio Ultra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (86 ratings)](https://appshunter.io/ios/app/idotmatrix/id1662746768/reviews)** | — |
| Number of ratings | **86** | — |
| Positive reviews | 33.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 82 MB | 5 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Heaton Technology Co., Ltd.](https://appshunter.io/developer/1076063818) | [Kurenz Music GbR](https://appshunter.io/developer/544695186) |

## What reviewers say

### iDotMatrix

[App page](https://appshunter.io/ios/app/idotmatrix/id1662746768)

Design custom images and animations for dot matrix screens. Create GIFs, DIY pictures, and import videos. Set alarms, lighting effects, reminders, and display music rhythms.

**Highlights:** Design dot matrix pictures, Create GIF animations, DIY custom images, Import videos for display, Set alarms and reminders, Display music rhythms, Scoreboard and stopwatch functions

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Affordable pixel display
- 👍 Customizable animations and designs
- 🎨 Variety of preset content
- 👍 Easy to use app interface

**What reviewers complain about**

- 🐛 Bugs and glitches after updates
- 🔧 Limited color and editing options in the app
- 🔍 Lack of search functionality in the content library
- 🕰️ Inconsistent or limited clock/time display features

**Reported bugs**

- App crashes on startup after updates
- Issues with connecting the device to the app
- Problems with saving and loading custom designs
- Energy saving mode not working as expected

**Requested features**

- Add more color options, including darker shades
- Implement a search tool in the content library
- Allow more customization of the clock and time display
- Improve animation import and playback features
- Add support for importing GIFs and videos directly


### QR Studio Ultra

[App page](https://appshunter.io/ios/app/qr-studio-ultra/id6778489237)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Studio Ultra Pro | $1.99 | one-time |


## Frequently asked questions

### Is iDotMatrix free?

iDotMatrix is free to download, with no in-app purchases.

### Is QR Studio Ultra free?

QR Studio Ultra is free to download, with in-app purchases available.

### Do iDotMatrix or QR Studio Ultra have ads?

QR Studio Ultra shows ads; iDotMatrix does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*