# Kane Link vs AI Grammar Keyboard

The clearest difference is in-app purchases: Kane Link at none against AI Grammar Keyboard's 1. Kane Link also leads on ads (none vs shown) and device support (3 vs 1). AI Grammar Keyboard's advantage is update cadence (every 6 days vs every 6 months). On price there is nothing between them.

Both are free to download. AI Grammar Keyboard sells 1 one-off in-app purchase. Kane Link asks for nothing beyond the download.

Kane Link ships an update every 6 months, AI Grammar Keyboard every 6 days. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Kane Link | AI Grammar Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 12 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Digital Hole Pvt. Ltd.](https://appshunter.io/developer/917701060) |

## What reviewers say

### Kane Link

[App page](https://appshunter.io/ios/app/kane-link/id6553980867)

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

**In-app purchases:** none


### AI Grammar Keyboard

[App page](https://appshunter.io/ios/app/ai-grammar-keyboard-typebuddy/id6759708423)

This AI-powered keyboard offers on-device grammar correction, sentence refinement, smart replies, and translation. It prioritizes user privacy by processing all data locally, eliminating the need for cloud-based services or app switching.

**Highlights:** On-device AI processing, Grammar correction, Sentence refinement, Smart reply generation, Offline translation, Privacy-focused

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Kane Link free?

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

### Is AI Grammar Keyboard free?

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

### Do Kane Link or AI Grammar Keyboard have ads?

AI Grammar Keyboard shows ads; Kane Link does not.

### Which is updated more often, Kane Link or AI Grammar Keyboard?

Kane Link ships an update every 6 months, and AI Grammar Keyboard every 6 days. Most recently, Kane Link was updated on November 4, 2026 and AI Grammar Keyboard on November 9, 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.*