Co vs KOOV®
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
KOOV®
This educational app teaches coding and robotics through interactive lessons and hands-on robot building. Users can follow pre-written code, earn badges for completing courses, and create their own unique robot designs.
- 3D building guide
- Visual programming with coding blocks
- Robot Recipes with pre-written code
- Learning Course with badges
- Free Production for custom robots
- Collection of activities and creations
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This is an app available on iPad for using KOOV™, a coding and robotics kit provided by Sony Global Education, Inc. To use this app, please purchase a KOOV™ kit, create an account at www.koov.io, then download this app to an iPad Air / Pro / mini 4 or later versions. Learn all about coding while having fun with the KOOV™ app, and discover and enjoy the world of coding. [Steps of Learning] - Robot Recipes: Build robots and get them moving straight away using pre-written code from the KOOV team. - Learning Course: Learn about the world of coding and robotics and get "badges" to prove your coding skills. - Free Production: Create your own unique robots from scratch and share your creations with the world. - Collection: This is where you find your record of all activities, the badges you earned, and the robots that you made. [Features] - The 3D building guide: The 3D building guide helps you understand how blocks are connected and how robots are structured by looking at the instruction images from different angles, or by zooming in and out. - Visual programming: KOOV uses visual programming so that even beginners can swiftly understand how to code by snapping the "coding blocks". You can easily make your own robot move in your own way by testing the code out with a robot.
Screenshots
Verdict
The clearest difference is rating: KOOV® at 4.8 against Co's 2.6. Co's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 12.0). On price, ratings volume, 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.
KOOV® holds the better App Store score, 4.8 against 2.6. Both are backed by a comparable volume of ratings — 17 and 6 respectively.
Co ships an update every 4 months, KOOV® every 2 months. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.
| Parameter | Co | KOOV® |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (17 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 8.3% of reviews | — |
| Number of ratings | 17 — better | 6 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 45 MB | 272 MB |
| Age rating | 4+ | 4+ |
| Developer | Don Johnston Incorporated | Sony Global Education, Inc. |
Customer experience
Co
KOOV®
In-app purchases
Co
No in-app purchases
KOOV®
No in-app purchases









