Comparison

Co vs Read&Write

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

Read&Write

This app offers advanced text-to-speech capabilities, allowing users to have text read aloud with synchronized highlighting. It also includes writing assistance features like word prediction and spell check, along with extensive formatting options for improved readability and document creation.

Highlights
  • Text-to-Speech with synchronized highlighting
  • Word prediction for faster writing
  • Customizable font and layout settings
  • Save text as audio files
  • Import and open various document formats
  • Read webpages via toolbar extension
  • Spellcheck and grammar check with word descriptions
Features
Read full description

Read&Write for iPad is a reading and writing app with high-quality text-to-speech, formatting controls, a wide range of fonts and styles and cloud storage integration. Read&Write provides visual highlighting in-sync with spoken words, a great range of colour and font settings to allow for optimum reading, and word prediction to help with writing. Read&Write is a quality app for proofreading text through listening, helping with reading and literacy development, and creating audio files from any text. PRODUCT FEATURES • Text-to-Speech - Type into Read&Write and have the text read back to you. You can check text and proofread it quickly and easily. - You can import documents into Read&Write from apps such as Mail, or import directly from Dropbox, Google Drive and OneDrive.. Read&Write can open a range of document formats including Word doc, PDF and epub. - Text from any app can be copied and pasted into Read&Write ready to be read back. - Apple's speech recognition can be used to dictate text directly into Read&Write, and can be listened back to ensure it is right. - The Apple spell check works in Read&Write too, further helping accuracy. - You can save the text as an audio file using the same high-quality voice. • Word Prediction Word prediction helps with writing more quickly and accurately. • Visual Highlighting Text is highlighted as the text is read back. Highlighting allows you to coordinate reading and listening. Read&Write lets you pick the colour and style of highlighting required. There are four highlighting modes to choose from: none, word by word, word trail, or sentence by sentence highlighting. • Font & Layout Change the font type, size or colour to suit your needs. Layout the text for easier reading by adjusting the character, line and paragraph spacing and adjusting the page margins. Text can be formatted bold, italic and underlined to emphasise. Images can be inserted into the text from the camera or your library. • Save to Audio Convert any text into an audio file using any of the high-quality voices. This is quick and easy, allowing text to be listened to on the move. Great for proofreading on the go. • Share your text Text created within Read&Write can be emailed, messaged, printed, opened in another app, or copied and pasted into another app, like Safari. • Read webpages You can now read webpages in Safari and other browsers, using the "Read&Write Toolbar" extension from the share menu. * Spellcheck & Grammar check Use the Read&Write spellcheck feature that can provide you with additional word descriptions and pictures to help you find the correct word. Also included in this app is the Read&Write Keyboard app, which is a powerful keyboard replacement that works in every app. Supporting reading, writing, comprehension and vocabulary development, Read&Write provides a rich set of features which extend accessibility and provide a range of tools to help with literacy including: • Text to speech • Prediction • Dictionary / Talking dictionary • Picture Dictionary • Check It • Talk&Type (available for iOS 10 and above) • Speak as I type • OpenDyslexic font support • Language translation in Safari (French or Spanish, Locale dependent) • French language localisation The Read&Write keyboard app provides help everywhere it’s needed whether it’s working on documents, presentations, being creative or just using mail. It’s great for those with individual needs such as Dyslexia and those where English is not their first language, but it’s designed for everyone.

Screenshots

Co4 screens
Read&Write4 screens

Verdict

The call

The clearest difference is rating: Read&Write at 3.1 against Co's 2.6. Read&Write also leads on update cadence (monthly vs every 4 months) and review sentiment (24% vs 8%). Co's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 16.6). On price, ratings volume, ads and device support 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

Both are free to download. Read&Write sells 1 one-off in-app purchase. Co asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Read&Write holds the better App Store score, 3.1 against 2.6. Both are backed by a comparable volume of ratings — 17 and 29 respectively. Written reviews point the same way: 8% of Co's written reviews are positive against 24% of Read&Write's.

UpkeepUpdate frequency

Co ships an update every 4 months, Read&Write monthly. The most recent releases landed on June 5, 2026 and September 20, 2026 respectively.

Scorecard6 real differences · 4 level
Co versus Read&Write: the parameters behind the verdict, then further details
ParameterCoRead&Write
PriceFreeFree
Rating2.6 (17 ratings)3.1 (29 ratings) — better
Positive reviews8.3% of reviews24.2% of reviews — better
Number of ratings1729 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better16.6
Further details — not scored
Size45 MB225 MB
Age rating4+4+
DeveloperDon Johnston IncorporatedEverway Opco Ltd.

Customer experience

Co

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

Read&Write

All ratings29 ratings
Positive48.3%
Neutral10.3%
Negative41.4%
Written reviews33 reviews
Positive24.2%
Neutral3.0%
Negative72.7%

In-app purchases

None

Co

No in-app purchases

1 purchases

Read&Write

One-time1
  • Unlock Premium Feature$19.99

Questions

Is Co free?
Co is free to download, with no in-app purchases.
Is Read&Write free?
Read&Write is free to download, with in-app purchases available.
Which has better reviews, Co or Read&Write?
Read&Write is rated higher. Co averages 2.6 out of 5 from 17 ratings, while Read&Write averages 3.1 from 29 ratings.
Do Co or Read&Write have ads?
Neither Co nor Read&Write shows ads.
Which is updated more often, Co or Read&Write?
Co ships an update every 4 months, and Read&Write monthly. Most recently, Co was updated on June 5, 2026 and Read&Write on September 20, 2026.

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