Co vs Cubelets Updater
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Co
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.
- Grammar-smart word prediction
- Millions of topic-specific dictionaries
- Flexspell™ technology for spelling errors
- Built-in text-to-speech
- Personalized vocabulary and settings
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Co:Writer® Universal app and third-party keyboard gives students easy access to word prediction on iPad, iPad Pro, iPhone, and iPod Touch. Students simply sign in to their Co:Writer Universal accounts to write with their personal settings and vocabulary. ABOUT CO:WRITER UNIVERSAL This version is for schools with a Co:Writer Universal license only. Users without a Co:Writer Universal license must purchase the Co:Writer app. HOW DOES CO:WRITER WORK? As letters are typed, Co:Writer predicts the intended word with a selection of word suggestions using powerful grammar-smart word prediction. These suggestions can be read aloud with a swipe. Selecting the intended word places it into the writing document. For feedback while writing (and after writing) built-in text to speech can be used to read letters, words, sentences, and the entire document. 4+ MILLION TOPIC-SPECIFIC DICTIONARIES Co:Writer has access to a main prediction dictionary (that includes core words) and Topic Dictionaries (that includes topic specific words). Co:Writer can access over 4 million topic-specific dictionaries which are activated based on the writing task. A small sampling of the variety of topic dictionaries: - America's Cup - Apple II - Compare and Contrast - Dinosaurs - Grumpy Cat - History of the Peloponnesian War - Mahatma Gandhi - My Dog - Pig Latin - Rolls-Royce Silver Ghost - SpongeBob SquarePants - Tommy (album) - Wonders of the World SPELLING SUPPORT Co:Writer handles the widest range of spelling mistakes through its Flexspell™technology including phonetic spelling and inventive spelling errors (letter omissions, word ending omissions, letter reversals, etc). Examples of how Co:Writer aides with phonetic and/or inventive spelling: Before Co:Writer The blk jargon flu over the bra lfnt. R u hpy to ce me? I no hw to nor the fone. After Co:Writer The black dragon flew over the gray elephant. Are you happy to see me? I know how to answer the phone. GRAMMAR SUPPORT Co:Writer bases its prediction off of proper grammar, and uses its understanding of grammar to accurately predict words within the framework of valid sentence structures. Examples of how Co:Writer aides with grammar: Dogs are furry. (noun, verb, adj.) - When you typed d-o, you get plural noun choices Three very mangy dogs ran down the street. (adj., adv., adj., noun, verb… etc.) - After typing three, very, mangy, you get plural noun choices, then you get plural verb tenses. OTHER FEATURES - Built-in Text to Speech - Export
Cubelets Updater
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.
- 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
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Cubelets robot blocks are a fast and easy way to inspire kids to become better thinkers. The Cubelets app connects to your Bluetooth Cubelet, and allows you to play with Cubelets in new ways. Connect to your Bluetooth Cubelet and see a map of your Cubelets update in real time as you change your construction. Then, select up to six Cubelets to remote control them. Steer your Drive blocks around, light up your Flashlight block, or read the output from the Distance blocks on your robot. This app supports Cubelets OS 4, a new operating system for Cubelets. If you have older Cubelets, you may upgrade them to OS 4 in the app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Co | Cubelets Updater |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (17 ratings) — better | 2.6 (5 ratings) |
| Positive reviews | 8.3% of reviews | 33.3% of reviews — better |
| Number of ratings | 17 — better | 5 |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Don Johnston Incorporated | Modular Robotics |
Customer experience
Co
Cubelets Updater
In-app purchases
Co
No in-app purchases
Cubelets Updater
No in-app purchases
Questions
Is Co free?
Is Cubelets Updater free?
Which has better reviews, Co or Cubelets Updater?
Do Co or Cubelets Updater have ads?
Which is updated more often, Co or Cubelets Updater?
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