# SIDOC vs Grammar Check

The clearest difference is in-app purchases: SIDOC at none against Grammar Check's 2. SIDOC also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Grammar Check sells 2 in-app purchases, starting at $3.99 per 7 days. SIDOC asks for nothing beyond the download.

SIDOC ships an update every 5 weeks, Grammar Check monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SIDOC | Grammar Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (18 ratings)](https://appshunter.io/ios/app/grammar-check-grammarme/id6744831564/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 11 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Netducational LLC](https://appshunter.io/developer/1406883043) | [Ideas All Day Ltd.](https://appshunter.io/developer/1628099296) |

## What reviewers say

### SIDOC

[App page](https://appshunter.io/ios/app/sidoc/id6446381222)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grammar Check

[App page](https://appshunter.io/ios/app/grammar-check-grammarme/id6744831564)

Enhance your writing with an AI-powered assistant. Correct grammar and spelling, rewrite text, translate, and summarize content. Offers multiple input methods including voice and camera scanning.

**Highlights:** AI grammar and spell check, Text rewriting and paraphrasing, Content summarization and expansion, Multi-language translation, Voice-to-text and OCR scanning, Dictionary and synonym finder

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Weekly | $3.99 | per 7 days |
| Unlimited Yearly | $24.99 | per year |


## Frequently asked questions

### Is SIDOC free?

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

### Is Grammar Check free?

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

### Do SIDOC or Grammar Check have ads?

Neither SIDOC nor Grammar Check shows ads.

### Which is updated more often, SIDOC or Grammar Check?

SIDOC ships an update every 5 weeks, and Grammar Check monthly. Most recently, SIDOC was updated on October 30, 2026 and Grammar Check on November 5, 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.*