# Primary Writer vs Co

The clearest difference is review sentiment: Primary Writer at 75% against Co's 8%. Primary Writer also leads on rating (4.0 vs 2.6) and update cadence (every 2 months vs every 4 months). Co's advantage is in-app purchases (none vs 8) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Primary Writer sells 8 one-off in-app purchases. Co asks for nothing beyond the download.

Primary Writer holds the better App Store score, 4.0 against 2.6. Both are backed by a comparable volume of ratings — 5 and 17 respectively. Written reviews point the same way: 75% of Primary Writer's written reviews are positive against 8% of Co's.

Primary Writer ships an update every 2 months, Co every 4 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Primary Writer | Co |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/primary-writer/id532878729/reviews)** | [2.6 (17 ratings)](https://appshunter.io/ios/app/cowriter-universal/id915105799/reviews) |
| Number of ratings | 5 | **17** |
| Positive reviews | **75.0% of reviews** | 8.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 130 MB | 45 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Winztech Services LLC](https://appshunter.io/developer/1806835062) | [Don Johnston Incorporated](https://appshunter.io/developer/674099735) |

## What reviewers say

### Primary Writer

[App page](https://appshunter.io/ios/app/primary-writer/id532878729)

This app allows children and adults to create and customize stories with various backgrounds and colors. Once complete, users can share their creations as PDFs or print them directly from their iPad.

**Highlights:** Story writing interface, Customizable paper backgrounds, Color customization options, PDF export, AirPrint direct printing, Kid-friendly design

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Animals 1 | $0.99 | one-time |
| Valentine Fun | $0.99 | one-time |
| Halloween Treat | $0.99 | one-time |
| Spring Faves | $0.99 | one-time |
| We Love Mom | $0.99 | one-time |
| We Love Dad | $0.99 | one-time |
| Summertime | $0.99 | one-time |
| Christmas | $0.99 | one-time |


### 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


## Frequently asked questions

### Is Primary Writer free?

Primary Writer is free to download, with in-app purchases available.

### Is Co free?

Co is free to download, with no in-app purchases.

### Which has better reviews, Primary Writer or Co?

Primary Writer is rated higher. Primary Writer averages 4.0 out of 5 from 5 ratings, while Co averages 2.6 from 17 ratings.

### Do Primary Writer or Co have ads?

Neither Primary Writer nor Co shows ads.

### Which is updated more often, Primary Writer or Co?

Primary Writer ships an update every 2 months, and Co every 4 months. Most recently, Primary Writer was updated on November 1, 2026 and Co on November 1, 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.*