Co vs Helperbird
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
Helperbird
Enhance reading and writing with advanced tools for dyslexia and accessibility. Features include voice typing, immersive reading, simplified text, and customizable display options to make web content more accessible for everyone.
- Immersive Reader
- Dyslexia support
- Voice typing
- Reading mode
- Text-to-speech
- Summarize content
- Customizable fonts and spacing
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Helperbird is your go-to for advanced reading, writing, and accessibility controls. Our features include voice typing, dyslexia support, an immersive reader, and a reading mode. Tailored to fit diverse abilities and learning styles, making the web accessible for all. What’s included in Helperbird? Reading features Immersive Reader by Microsoft Simplify Feature Reading Mode: Removes ads and distractions. Specialized Fonts Text to Speech options Dyslexia Ruler Line Focus Ruler Reading Ruler Auto Scrolling Dyslexia fonts Text Size Adjustment Letter Spacing Adjustment Word Spacing Adjustment Line-Height Adjustment Text Alignment Web Highlighter Marker Translation Paragraph Width Paragraph Borders Picture Dictionary Overlays & Tints Summarize Websites and PDFs Screenshot Reader Speed Reading Tools Highlight/Selector Colors Font Colors Background Colors Link Colors Volume Booster Writing features Sticky Notes on Websites and PDFs Word Prediction Voice Typing Diction / Speech to Text Translation Spell Check Text Analysis Web Highlighter Marker English Dictionary by Helperbird PDF Reader by Helperbird Screenshot Reader Extract Text (OCR) from Images & Videos Print Accessibility features Dyslexia Ruler Line Focus Ruler Reading Ruler Paragraph Customizations Dyslexia Fonts (OpenDyslexic, Lexend Deca, +14 others) Reduce Motion Auto Scrolling High Contrast Overlays Video Playback Adjustments Grayscale Mode Emphasize Links Color Blindness Controls Overlays & Tints Increase and Decrease Cursor Size Show Alt and Title Tags Hide Images and GIFs to Improve Reading Focus Saturation Control Shortcuts Phonics Reading Helperbird Apps Immersive Reader by Microsoft English Dictionary by Helperbird Feature-filled Document Editor Reading List by Helperbird PDF Reader by Helperbird App Support Google Docs Add-on by Helperbird Google Slides Add-on by Helperbird Google Classroom Support Microsoft Word Online Support Grammarly Support Sync Settings Across Browsers To see all the features and learn more, check out https://www.helperbird.com/features/ Privacy & Compliance Strict privacy policy: No user data selling or storage. Compliance with COPPA, FERPA, GDPR. Support Email: robert.gabriel@helperbird.com Helperbird Support Page: https://www.helperbird.com/support/ Proudly founded by a dyslexic software engineer in Ireland, fueled by coffee & love.
Screenshots
Verdict
The clearest difference is review sentiment: Helperbird at 60% against Co's 8%. Helperbird also leads on rating (4.5 vs 2.6) and update cadence (fortnightly vs every 4 months). Co's advantage is iOS requirement (10.0 vs 17.4). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Helperbird holds the better App Store score, 4.5 against 2.6. Both are backed by a comparable volume of ratings — 17 and 8 respectively. Written reviews point the same way: 8% of Co's written reviews are positive against 60% of Helperbird's.
Co ships an update every 4 months, Helperbird fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Co | Helperbird |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (17 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 8.3% of reviews | 60.0% of reviews — better |
| Number of ratings | 17 — better | 8 |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 10.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 45 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Don Johnston Incorporated | Coffee & Fun LLC |
Customer experience
Co
Helperbird
In-app purchases
Co
No in-app purchases
Helperbird
No in-app purchases









