Comparison

Co vs Keeble

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

Keeble

This keyboard app provides advanced accessibility features for users with motor challenges, vision impairments, and switch users. It offers customizable typing options, auditory feedback, and self-learning word prediction to enhance usability across various iOS applications.

Highlights
  • Word prediction
  • Select on Release/Dwell
  • Auditory feedback
  • Switch Control support
  • VoiceOver support
  • Multi-language support
  • Customizable themes
Read full description

Keeble is an iOS keyboard that allows users with fine motor-challenges, switch users and users with vision impairments to type in almost any app. The keyboard offers word prediction, timing options, Select on Release, Select on Dwell, auditory feedback and other accessibility features. It also fully supports Switch Control and VoiceOver. Keeble is currently available in English, French, Spanish, Dutch, German, Italian, Swedish, Norwegian, Danish, Czech and Polish. The keyboard also offers optimized layouts for simplified, advanced and scanning keyboards. Alternative access - Prevent accidental selections with Timing options - Compensate for motor challenges with Select on Release or Select on Dwell - Use scanning-optimized keyboards with Switch Control: ABC and frequency of use Auditory feedback - Turn on keyboard clicks - Use spoken cues as you move your finger across the keyboard - Hear each key, word or sentence you type with Speak as you Type Self-learning word prediction - Choose between word completion, next-word prediction or multi-word prediction - Configure the number of suggestions and suggestion order - Adjust the size of the prediction bar to your needs Speed up typing - Benefit from the phrase bank providing quick access to your iOS keyboard shortcuts - Use the cursor keys to navigate through text quickly - Turn Auto-Capitalization and Auto-Spacing ON or OFF Optimize for different users - Use with beginning readers and select lowercase key labels, ABC layout and colored vowels - Customize for adults by allowing access to all characters and selecting QWERTY layout - Choose from 5 different themes or create a custom theme User comfort - Use Keeble on iPad, iPhone and iPod touch - Select one of the 11 available languages, including regional keyboard layouts - Choose your preferred font, including dyslexic and school-friendly fonts

Screenshots

Co4 screens
Keeble4 screens

Verdict

The call

The clearest difference is review sentiment: Keeble at 64% against Co's 8%. Keeble also leads on rating (3.4 vs 2.6). Co's advantage is price (Free vs $24.99) and iOS requirement (10.0 vs 17.7.2). On ratings volume, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Co is free to download; Keeble costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Keeble holds the better App Store score, 3.4 against 2.6. Both are backed by a comparable volume of ratings — 17 and 13 respectively. Written reviews point the same way: 8% of Co's written reviews are positive against 64% of Keeble's.

UpkeepUpdate frequency

Co ships an update every 4 months, Keeble every 6 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Co versus Keeble: the parameters behind the verdict, then further details
ParameterCoKeeble
PriceFree — better$24.99
Rating2.6 (17 ratings)3.4 (13 ratings) — better
Positive reviews8.3% of reviews63.6% of reviews — better
Number of ratings17 — better13
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.7.2
Further details — not scored
Size45 MB200 MB
Age rating4+4+
DeveloperDon Johnston IncorporatedAssistiveWare

Customer experience

Co

All ratings17 ratings
Positive29.4%
Neutral23.5%
Negative47.1%
Written reviews12 reviews
Positive8.3%
Neutral16.7%
Negative75.0%

Keeble

All ratings13 ratings
Positive46.2%
Neutral30.8%
Negative23.1%
Written reviews22 reviews
Positive63.6%
Neutral31.8%
Negative4.5%

In-app purchases

None

Co

No in-app purchases

None

Keeble

No in-app purchases

Questions

Is Co free?
Co is free to download, with no in-app purchases.
Is Keeble free?
Keeble costs $24.99, with no in-app purchases.
Which has better reviews, Co or Keeble?
Keeble is rated higher. Co averages 2.6 out of 5 from 17 ratings, while Keeble averages 3.4 from 13 ratings.
Do Co or Keeble have ads?
Neither Co nor Keeble shows ads.
Which is updated more often, Co or Keeble?
Co ships an update every 4 months, and Keeble every 6 months. Most recently, Co was updated on October 20, 2026 and Keeble on October 24, 2026.

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