# Co vs Cubelets Updater

Co and Cubelets Updater both sit at 2.6 stars, but that hides the real split: 33% of Cubelets Updater's written reviews are positive against 8% of Co's. Co's advantage is ratings volume (17 vs 5). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 2.6 for Co against 2.6 for Cubelets Updater. Both are backed by a comparable volume of ratings — 17 and 5 respectively. Written reviews are what separate them: 8% of Co's written reviews are positive against 33% of Cubelets Updater's.

Co ships an update every 4 months, Cubelets Updater every 6 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Co | Cubelets Updater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (17 ratings)](https://appshunter.io/ios/app/cowriter-universal/id915105799/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/cubelets-updater/id1036174335/reviews) |
| Number of ratings | **17** | 5 |
| Positive reviews | 8.3% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 45 MB | 9 MB |
| Requires iOS | 10.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Don Johnston Incorporated](https://appshunter.io/developer/674099735) | [Modular Robotics](https://appshunter.io/developer/780036652) |

## What reviewers say

### Co

[App page](https://appshunter.io/ios/app/cowriter-universal/id915105799)

This app provides advanced word prediction and spelling support for students. It offers grammar-smart suggestions and access to millions of topic-specific dictionaries to aid in writing. Built-in text-to-speech functionality helps users review their work.

**Highlights:** Grammar-smart word prediction, Millions of topic-specific dictionaries, Flexspell™ technology for spelling errors, Built-in text-to-speech, Personalized vocabulary and settings

**Features:** macOS Compatibility

**In-app purchases:** none


### Cubelets Updater

[App page](https://appshunter.io/ios/app/cubelets-updater/id1036174335)

This app connects to Bluetooth Cubelets, allowing real-time construction updates and remote control of up to six robot blocks. It also supports upgrading older Cubelets to the latest operating system.

**Highlights:** Real-time construction map updates, Remote control of up to six Cubelets, Steer Drive blocks, Activate Flashlight blocks, Read Distance block output, Upgrade Cubelets OS

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Co free?

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

### Is Cubelets Updater free?

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

### Which has better reviews, Co or Cubelets Updater?

Co is rated higher. Co averages 2.6 out of 5 from 17 ratings, while Cubelets Updater averages 2.6 from 5 ratings.

### Do Co or Cubelets Updater have ads?

Neither Co nor Cubelets Updater shows ads.

### Which is updated more often, Co or Cubelets Updater?

Co ships an update every 4 months, and Cubelets Updater every 6 months. Most recently, Co was updated on November 1, 2026 and Cubelets Updater on November 2, 2026.

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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.*