# Reply Lab vs Spell It {JCS}

The clearest difference is in-app purchases: Spell It {JCS} at none against Reply Lab's 4. Spell It {JCS} also leads on ads (none vs shown). On price, update cadence, 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. Spell It {JCS} asks for nothing beyond the download.

Reply Lab ships an update every 5 days, Spell It {JCS} every 6 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Reply Lab | Spell It {JCS} |
| --- | --- | --- |
| 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 | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | Freemium | — |
| Size | 19 MB | 2 MB |
| Requires iOS | 17 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Application Of Technology, LLC](https://appshunter.io/developer/1895888441) | [Cecilia Santapau](https://appshunter.io/developer/6775015477) |

## 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 |


### Spell It {JCS}

[App page](https://appshunter.io/ios/app/spell-it-jcs/id6809231419)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reply Lab free?

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

### Is Spell It {JCS} free?

Spell It {JCS} is free to download, with no in-app purchases.

### Do Reply Lab or Spell It {JCS} have ads?

Reply Lab shows ads; Spell It {JCS} does not.

### Which is updated more often, Reply Lab or Spell It {JCS}?

Reply Lab ships an update every 5 days, and Spell It {JCS} every 6 days. Most recently, Reply Lab was updated on October 28, 2026 and Spell It {JCS} on October 29, 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.*