# Grammar Air vs SofiJob

The clearest difference is in-app purchases: SofiJob at none against Grammar Air's 13. SofiJob also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Grammar Air sells 12 in-app purchases, starting at $4.99 per 7 days. SofiJob asks for nothing beyond the download.

Grammar Air ships an update every 3 weeks, SofiJob every 2 weeks. The most recent releases landed on October 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Grammar Air | SofiJob |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/grammar-air-writing-checker/id1616312980/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 219 MB | 88 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Air Apps Systems](https://appshunter.io/developer/1316153435) | [OPEN SOLUTION](https://appshunter.io/developer/1848529830) |

## What reviewers say

### Grammar Air

[App page](https://appshunter.io/ios/app/grammar-air-writing-checker/id1616312980)

Enhance your writing with real-time grammar and spelling corrections. This AI-powered keyboard offers smart word suggestions and text adjustments to improve fluency and tailor your communication.

**Highlights:** Real-time grammar corrections, Instant spelling fixes, Personalized text adjustments, Smart word suggestions, Vocabulary improvement

**Features:** Apple Wallet

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Air Apps One | $4.99 | per 7 days |
| Air Apps One - 1 Week | $4.99 | per 7 days |
| Air Apps One Welcome - 1 Week | $4.99 | per 7 days |
| Air Apps One - 1 Week | $6.99 | per 7 days |
| Air Apps One - 1 Week | $7.99 | per 7 days |
| Air Apps One | $9.99 | per month |
| Air Apps One - 1 Month | $9.99 | per month |
| Air Apps One - 1 Week | $9.99 | per 7 days |
| Air Apps One - 1 Week | $12.99 | per 7 days |
| Air Apps One | $69.99 | per year |
| Air Apps One - 1 Year | $69.99 | per year |
| Air Apps Pro - 1 Month | $199.99 | per month |


### SofiJob

[App page](https://appshunter.io/ios/app/sofijob/id6754501445)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grammar Air free?

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

### Is SofiJob free?

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

### Do Grammar Air or SofiJob have ads?

Grammar Air shows ads; SofiJob does not.

### Which is updated more often, Grammar Air or SofiJob?

Grammar Air ships an update every 3 weeks, and SofiJob every 2 weeks. Most recently, Grammar Air was updated on October 9, 2026 and SofiJob on September 26, 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.*