Comparison

Co vs SmartScan Go

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

SmartScan Go

Instantly scan assessment answer forms using your device's camera for immediate results. Teachers can efficiently track scanned forms and identify missing submissions, with all data sent to Mastery Manager for comprehensive reporting.

Highlights
  • Scan answer forms with device camera
  • Instant assessment results for students
  • Track scanned and missing forms
  • Automatic data submission to Mastery Manager
  • Teacher progress monitoring
Read full description

SmartScan allows you to scan Mastery Manager answer forms on the fly by using your device's camera. Students can easily scan their assessment and get instant results. Teachers can scan multiple answer forms for any assessment while the app keeps track of forms scanned. Easily see what Mastery Manager forms have been scored and what forms are still missing. All results will be immediately sent to Mastery Manager for advanced reporting. The SmartScan App requires a subscription to Mastery Manager and the SmartScan Module to be turned on.

Screenshots

Co4 screens
SmartScan Go3 screens

Verdict

The call

The clearest difference is rating: SmartScan Go at 3.7 against Co's 2.6. SmartScan Go also leads on review sentiment (17% vs 8%). Co's advantage is monetization model (free vs subscription) and ratings volume (17 vs 3). On price, 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

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

ReceptionRating · Positive reviews · Number of ratings

SmartScan Go holds the better App Store score, 3.7 against 2.6. That said, the two scores are not equally well evidenced: Co has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 8% of Co's written reviews are positive against 17% of SmartScan Go's.

UpkeepUpdate frequency

Co ships an update every 4 months, SmartScan Go every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
Co versus SmartScan Go: the parameters behind the verdict, then further details
ParameterCoSmartScan Go
PriceFreeFree
Rating2.6 (17 ratings)3.7 (3 ratings) — better
Positive reviews8.3% of reviews16.7% of reviews — better
Number of ratings17 — better3
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size45 MB27 MB
Age rating4+4+
DeveloperDon Johnston IncorporatedGoldstar Learning, Inc.

Customer experience

Co

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

SmartScan Go

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive16.7%
Neutral50.0%
Negative33.3%

In-app purchases

None

Co

No in-app purchases

None

SmartScan Go

No in-app purchases

Questions

Is Co free?
Co is free to download, with no in-app purchases.
Is SmartScan Go free?
SmartScan Go is free to download, with no in-app purchases.
Which has better reviews, Co or SmartScan Go?
SmartScan Go is rated higher. Co averages 2.6 out of 5 from 17 ratings, while SmartScan Go averages 3.7 from 3 ratings.
Do Co or SmartScan Go have ads?
Neither Co nor SmartScan Go shows ads.
Which is updated more often, Co or SmartScan Go?
Co ships an update every 4 months, and SmartScan Go every 3 months. Most recently, Co was updated on November 1, 2026 and SmartScan Go on November 6, 2026.

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