# Reply Lab vs SmoothKey

The clearest difference is ads: SmoothKey at none against Reply Lab's shown. SmoothKey also leads on update cadence (every 2 days vs every 5 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Reply Lab sells 4 in-app purchases, starting at $1.99 per 7 days and SmoothKey sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Reply Lab ships an update every 5 days, SmoothKey every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Reply Lab | SmoothKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (24 ratings)](https://appshunter.io/ios/app/reply-lab-ai-texting-keyboard/id6764710682/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 19 MB | 4 MB |
| Requires iOS | 17 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 17+ |
| Developer | [Application Of Technology, LLC](https://appshunter.io/developer/1895888441) | [Tehui Ruanzhuo (Weifang) Enterprise Management Consulting Co., Ltd.](https://appshunter.io/developer/6787476365) |

## What reviewers say

### Reply Lab

[App page](https://appshunter.io/ios/app/reply-lab-ai-texting-keyboard/id6764710682)

This AI-powered keyboard generates context-aware replies directly within any messaging app, eliminating the need for copy-pasting or switching applications. It offers various reply tones, custom AI modes, and in-keyboard screenshot analysis for seamless communication.

**Highlights:** AI-powered reply generation, Works within any messaging app, 15+ reply tones, In-keyboard screenshot analysis, Customizable AI modes, Community marketplace for AI personalities

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reply Lab Pro | $1.99 | per 7 days |
| Reply Lab Pro | $4.99 | per month |
| Reply Lab Pro Yearly | $29.99 | per year |
| Lifetime Pro | $79.99 | one-time |


### SmoothKey

[App page](https://appshunter.io/ios/app/smoothkey-ai-chat-coach/id6805464765)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RizzKey Pro Weekly | $6.99 | per 7 days |
| RizzKey Pro Annual | $69.00 | per year |
| RizzKey Pro Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Reply Lab free?

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

### Is SmoothKey free?

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

### Do Reply Lab or SmoothKey have ads?

Reply Lab shows ads; SmoothKey does not.

### Which is updated more often, Reply Lab or SmoothKey?

Reply Lab ships an update every 5 days, and SmoothKey every 2 days. Most recently, Reply Lab was updated on November 5, 2026 and SmoothKey on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*