Hello Crayons vs Co
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hello Crayons
This app offers a fun and easy drawing experience for children, featuring realistic crayon and marker pen simulations. It includes cool drawing sounds and an intuitive interface, with free coloring sketches available.
- Realistic crayon and marker pen simulation
- Cool drawing sound effects
- Intuitive user interface
- Free coloring sketches
- Part of a drawing series
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Hello crayon is an easy & fun drawing APP for children. It provides realistic crayons and marker pens. Features - Realistic look & feel of crayons and marker pens - Cool drawing sound - Intuitive user interface - Free 8 coloring sketches for coloring Check out our hello drawing series. - Hello Crayons - Hello Color pencils - Hello Chalk Facebook http://www.facebook.com/pages/Hello-Crayon/128107603937551
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
Screenshots
Verdict
The clearest difference is review sentiment: Hello Crayons at 82% against Co's 8%. Hello Crayons also leads on rating (4.0 vs 2.6) and update cadence (every 6 weeks vs every 4 months). Co's advantage is in-app purchases (none vs 10). On price, ads, device support and iOS requirement 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. Hello Crayons sells 10 one-off in-app purchases. Co asks for nothing beyond the download.
Hello Crayons holds the better App Store score, 4.0 against 2.6. Both are backed by a comparable volume of ratings — 68 and 17 respectively. Written reviews point the same way: 82% of Hello Crayons's written reviews are positive against 8% of Co's.
Hello Crayons ships an update every 6 weeks, Co every 4 months. Both last shipped on November 1, 2026.
| Parameter | Hello Crayons | Co |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (68 ratings) — better | 2.6 (17 ratings) |
| Positive reviews | 81.6% of reviews — better | 8.3% of reviews |
| Number of ratings | 68 — better | 17 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 10.0 |
| Further details — not scored | ||
| Size | 84 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Raysoft.co | Don Johnston Incorporated |
Customer experience
Hello Crayons
Co
Bugs and requests
Hello Crayons
Reported bugs
10 issues- App crashes on startup or during use
- Blank white screen after loading
- Pictures not saving to camera roll despite showing saved
- Coloring books disappear after app update
- Purchased extras lost after updates
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- App freezes when accessing store or in-app purchases
- Facebook sharing integration causes crashes
- Email function occasionally crashes app
- Crashes when opening coloring book section
- Incompatibility with iPad 2 after updates
Requested features
10 requests- Zoom in and out capability
- Multiple crayon/marker tip sizes
- More colors and drawing tools
- Import and trace pictures feature
- More coloring book pages
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- Music playback while using app
- Highlighters and pencils options
- Paint and watercolor tools
- Ability to color inside the lines education mode
- Wider color palette
Co
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hello Crayons
- 32 color crayons$0.99
- 32 color marker pens$0.99
- Coloring book #1$0.99
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- Coloring Book #2$0.99
- Coloring Book #3$0.99
- Coloring Book #4$0.99
- Flood Fills & Brush Pens$0.99
- crayon_cbook5$0.99
- crayon_cbook6$0.99
- crayon_cbook7$0.99
Co
No in-app purchases









