# Co vs VDWrite

The clearest difference is review sentiment: VDWrite at 68% against Co's 8%. VDWrite also leads on rating (4.1 vs 2.6) and update cadence (monthly vs every 4 months). Co's advantage is monetization model (free vs paid) and iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

VDWrite holds the better App Store score, 4.1 against 2.6. Both are backed by a comparable volume of ratings — 17 and 65 respectively. Written reviews point the same way: 8% of Co's written reviews are positive against 68% of VDWrite's.

Co ships an update every 4 months, VDWrite monthly. Both last shipped on November 1, 2026.

## The numbers

| Metric | Co | VDWrite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (17 ratings)](https://appshunter.io/ios/app/cowriter-universal/id915105799/reviews) | **[4.1 (65 ratings)](https://appshunter.io/ios/app/vdwrite/id920583100/reviews)** |
| Number of ratings | 17 | **65** |
| Positive reviews | 8.3% of reviews | **67.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Paid |
| Size | 45 MB | 47 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Don Johnston Incorporated](https://appshunter.io/developer/674099735) | [Opus Noma LLC](https://appshunter.io/developer/1501593543) |

## 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


### VDWrite

[App page](https://appshunter.io/ios/app/vdwrite/id920583100)

This writing app offers text-to-speech proofreading to catch errors, a word finder for better vocabulary, and an active outline for organizing and restructuring documents. It's designed to help users write more effectively and efficiently.

**Highlights:** Text-to-speech proofreading, Phonetic and meaning word search, Active document outline, Voice dictation support, iCloud synchronization, Cloud storage integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Co free?

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

### Is VDWrite free?

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

### Which has better reviews, Co or VDWrite?

VDWrite is rated higher. Co averages 2.6 out of 5 from 17 ratings, while VDWrite averages 4.1 from 65 ratings.

### Do Co or VDWrite have ads?

Neither Co nor VDWrite shows ads.

### Which is updated more often, Co or VDWrite?

Co ships an update every 4 months, and VDWrite monthly. Most recently, Co was updated on November 1, 2026 and VDWrite 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.*