# Co vs SmartScan Go

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.

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

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.

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.

## The numbers

| Metric | Co | SmartScan Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (17 ratings)](https://appshunter.io/ios/app/cowriter-universal/id915105799/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/smartscan-go/id1259487032/reviews)** |
| Number of ratings | **17** | 3 |
| Positive reviews | 8.3% of reviews | **16.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Subscription |
| Size | 45 MB | 27 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Don Johnston Incorporated](https://appshunter.io/developer/674099735) | [Goldstar Learning, Inc.](https://appshunter.io/developer/658332478) |

## What reviewers say

### Co

[App page](https://appshunter.io/ios/app/cowriter-universal/id915105799)

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:** macOS Compatibility

**In-app purchases:** none


### SmartScan Go

[App page](https://appshunter.io/ios/app/smartscan-go/id1259487032)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*