# Grammer Chat vs Purp

The clearest difference is ads: Purp at none against Grammer Chat's shown. Purp also leads on update cadence (every 2 weeks vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Grammer Chat sells 3 in-app purchases, starting at $0.99 per 7 days and Purp sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Grammer Chat ships an update every 3 weeks, Purp every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Grammer Chat | Purp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/grammer-chat/id6738950865/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 50 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gokmen Akar](https://appshunter.io/developer/1512809680) | [Mahmoud Mouayad Messadi](https://appshunter.io/developer/1865259692) |

## What reviewers say

### Grammer Chat

[App page](https://appshunter.io/ios/app/grammer-chat/id6738950865)

This AI-powered tool helps improve English writing by detecting and correcting grammar errors. It offers detailed explanations for each correction, suggests alternative phrasing, and allows users to save their learning insights for future reference.

**Highlights:** Instant grammar error detection, Real-time correction explanations, AI-powered sentence suggestions, Save learning insights, Personalized progress tracking, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $1.99 | per month |
| Quarterly | $5.99 | per 3 months |


### Purp

[App page](https://appshunter.io/ios/app/purp-ai-study-assistant/id6757203452)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purp Premium | $12.99 | per month |


## Frequently asked questions

### Is Grammer Chat free?

Grammer Chat is free to download, with in-app purchases available.

### Is Purp free?

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

### Do Grammer Chat or Purp have ads?

Grammer Chat shows ads; Purp does not.

### Which is updated more often, Grammer Chat or Purp?

Grammer Chat ships an update every 3 weeks, and Purp every 2 weeks. Most recently, Grammer Chat was updated on October 24, 2026 and Purp on October 25, 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.*