# Defentry vs NineKeys

The clearest difference is update cadence: NineKeys at every 4 days against Defentry's every 8 months. NineKeys also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Defentry ships an update every 8 months, NineKeys every 4 days. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Defentry | NineKeys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (4 ratings)](https://appshunter.io/ios/app/ninekeys-watch-keyboard/id1495553662/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 23.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 37 MB | 3 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Defentry AB](https://appshunter.io/developer/1359608671) | [Yingchi Wang](https://appshunter.io/developer/1114289020) |

## What reviewers say

### Defentry

[App page](https://appshunter.io/ios/app/defentry/id1464890898)

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

**In-app purchases:** none


### NineKeys

[App page](https://appshunter.io/ios/app/ninekeys-watch-keyboard/id1495553662)

Type SMS messages directly from your Apple Watch using predictive text and auto-emojis. This standalone app allows you to send messages even without your iPhone nearby, provided your watch has connectivity. Easily send messages via iMessage or SMS.

**Highlights:** Type SMS on Apple Watch, Predictive text suggestions, Auto-emojis, Standalone app functionality, Send via iMessage or SMS, Supports any language

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Defentry free?

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

### Is NineKeys free?

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

### Do Defentry or NineKeys have ads?

Neither Defentry nor NineKeys shows ads.

### Which is updated more often, Defentry or NineKeys?

Defentry ships an update every 8 months, and NineKeys every 4 days. Most recently, Defentry was updated on October 4, 2026 and NineKeys on October 12, 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.*