# Partial Quotients Division vs Co

The clearest difference is review sentiment: Partial Quotients Division at 100% against Co's 8%. Partial Quotients Division also leads on rating (5.0 vs 2.6). Co's advantage is price (Free vs $3.99) and ratings volume (17 vs 2). On update cadence, ads, in-app purchases and device support there is nothing between them.

Co is free to download; Partial Quotients Division costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Partial Quotients Division holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Co has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Partial Quotients Division's written reviews are positive against 8% of Co's.

Partial Quotients Division ships an update every 8 months, Co every 4 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Partial Quotients Division | Co |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/partial-quotients-division/id351024352/reviews)** | [2.6 (17 ratings)](https://appshunter.io/ios/app/cowriter-universal/id915105799/reviews) |
| Number of ratings | 2 | **17** |
| Positive reviews | **100.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 45 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Don Johnston Incorporated](https://appshunter.io/developer/674099735) |

## What reviewers say

### Partial Quotients Division

[App page](https://appshunter.io/ios/app/partial-quotients-division/id351024352)

This educational tool teaches and reinforces the partial quotients division method through interactive problem-solving. Users can practice random or custom problems with customizable settings and receive immediate feedback on their steps.

**Highlights:** Teaches partial quotients division method, Interactive problem-solving, Customizable colors and settings, Random and custom problem generation, Immediate feedback on steps, Animations illustrating steps

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Partial Quotients Division free?

Partial Quotients Division costs $3.99, with no in-app purchases.

### Is Co free?

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

### Which has better reviews, Partial Quotients Division or Co?

Partial Quotients Division is rated higher. Partial Quotients Division averages 5.0 out of 5 from 2 ratings, while Co averages 2.6 from 17 ratings.

### Do Partial Quotients Division or Co have ads?

Neither Partial Quotients Division nor Co shows ads.

### Which is updated more often, Partial Quotients Division or Co?

Partial Quotients Division ships an update every 8 months, and Co every 4 months. Most recently, Partial Quotients Division was updated on October 23, 2026 and Co on October 20, 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.*