Comparison

iBrainstorm vs Co

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

Head to head
About

iBrainstorm

This app allows users to capture and organize creative ideas on a digital canvas. Easily add notes, drawings, and arrange them visually. Share your brainstormed content seamlessly across devices.

Highlights
  • Multi-device collaboration
  • Add and drag-and-drop notes
  • Assign colors to notes
  • Digital drawing board
  • Zoom functionality
  • Capture and share ideas
Features
Read full description

Capturing and sharing your inner most creative genius has never been easier. Introducing the first multi-device collaboration tool from Universal Mind. From iPad to iPad with just a flick of the finger, iBrainstorm has set the bar and has redefined the very nature of collaboration. Add a note, then drag and drop it anywhere on the iPad's screen to create any desired order or pattern. Assign colors to give additional meaning or priority. Provide clarity to your students or classmates through simple organization. The iPad canvas also serves as a drawing board. Draw, erase or zoom in for tighter control. Everything is then captured for later. Show relationships between ideas or just capture your best stickman - it's easy. Think it. Share it. Love it!

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

Screenshots

Co4 screens

Verdict

The call

The clearest difference is rating: iBrainstorm at 3.7 against Co's 2.6. iBrainstorm also leads on review sentiment (46% vs 8%) and iOS requirement (7.1 vs 10.0). Co's advantage is device support (3 vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

iBrainstorm holds the better App Store score, 3.7 against 2.6. Both are backed by a comparable volume of ratings — 25 and 17 respectively. Written reviews point the same way: 46% of iBrainstorm's written reviews are positive against 8% of Co's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. Both last shipped on November 1, 2026.

Scorecard4 real differences · 6 level
iBrainstorm versus Co: the parameters behind the verdict, then further details
ParameteriBrainstormCo
PriceFreeFree
Rating3.7 (25 ratings) — better2.6 (17 ratings)
Positive reviews45.6% of reviews — better8.3% of reviews
Number of ratings25 — better17
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad, iPod — better
Requires iOS7.1 — better10.0
Further details — not scored
Size11 MB45 MB
Age rating4+4+
DeveloperErik LoehfelmDon Johnston Incorporated

Customer experience

iBrainstorm

All ratings25 ratings
Positive64.0%
Neutral8.0%
Negative28.0%
Written reviews149 reviews
Positive45.6%
Neutral25.5%
Negative28.9%

Co

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

Bugs and requests

iBrainstorm

Reported bugs

3 issues
  • Sticky notes sometimes disappear after reopening the app
  • Drawing tools can be laggy or unresponsive
  • Difficulty connecting devices for collaboration

Requested features

6 requests
  • Add undo/redo functionality
  • Allow resizing and formatting of sticky notes
  • Implement multi-page or infinite workspace
  • Enable collaboration between multiple devices
  • Add support for inserting images and documents
Show 1 more
  • Improve eraser and drawing tools

Co

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iBrainstorm

No in-app purchases

None

Co

No in-app purchases

Questions

Is iBrainstorm free?
iBrainstorm is free to download, with no in-app purchases.
Is Co free?
Co is free to download, with no in-app purchases.
Which has better reviews, iBrainstorm or Co?
iBrainstorm is rated higher. iBrainstorm averages 3.7 out of 5 from 25 ratings, while Co averages 2.6 from 17 ratings.
Do iBrainstorm or Co have ads?
Neither iBrainstorm nor Co shows ads.
Which is updated more often, iBrainstorm or Co?
iBrainstorm ships an update every 4 months, and Co every 4 months. Most recently, iBrainstorm was updated on November 1, 2026 and Co on November 1, 2026.

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