# Comma vs Scan2Sides

The clearest difference is ads: Scan2Sides at none against Comma's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Comma sells 3 in-app purchases, starting at $4.99 per 7 days and Scan2Sides sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Comma ships an update every 4 months, Scan2Sides every 5 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Comma | Scan2Sides |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/comma-grammar-check-corrector/id6743360918/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 3 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MATEUSZ JAROSŁAW WRZESZCZ](https://appshunter.io/developer/1857207465) | [永杰 杨](https://appshunter.io/developer/1799458676) |

## What reviewers say

### Comma

[App page](https://appshunter.io/ios/app/comma-grammar-check-corrector/id6743360918)

Enhance your writing with AI-powered grammar, spelling, and punctuation correction. Improve sentence clarity, tone, and flow with smart paraphrasing and rewriting tools. Perfect for students, professionals, and content creators seeking to write with confidence and accuracy.

**Highlights:** Instant grammar and spell check, Smart paraphrasing and sentence rewriting, AI-powered proofreading, Essay and content improvement, Real-time AI corrections, Works across multiple apps

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Annual Subscription | $29.99 | per year |


### Scan2Sides

[App page](https://appshunter.io/ios/app/scan2sides/id6743626230)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |


## Frequently asked questions

### Is Comma free?

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

### Is Scan2Sides free?

Scan2Sides is free to download, with in-app purchases available.

### Do Comma or Scan2Sides have ads?

Comma shows ads; Scan2Sides does not.

### Which is updated more often, Comma or Scan2Sides?

Comma ships an update every 4 months, and Scan2Sides every 5 months. Most recently, Comma was updated on November 4, 2026 and Scan2Sides on November 8, 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.*