# WorkReply vs Undetectable AI

WorkReply and Undetectable AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. WorkReply sells 1 in-app purchase, starting at $2.99 per month and Undetectable AI sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

WorkReply ships an update every 5 days, Undetectable AI every 3 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WorkReply | Undetectable AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/undetectable-ai-humanly/id6782625102/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TATSUYA ASANO](https://appshunter.io/developer/1877006861) | [Syed M Abdul Rehman](https://appshunter.io/developer/1750466119) |

## What reviewers say

### WorkReply

[App page](https://appshunter.io/ios/app/workreply-ai-email-assistant/id6759252981)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |


### Undetectable AI

[App page](https://appshunter.io/ios/app/undetectable-ai-humanly/id6782625102)

This tool helps you refine AI-generated text to sound more natural and human. It provides an AI detection score, rewrites content, and allows you to scan text from images and PDFs. Improve your writing and ensure it passes AI detection checks.

**Highlights:** AI detection score with breakdown, One-tap humanizer and rewriter, Paraphrasing that preserves meaning, Scan text from photos and PDFs, History for version comparison

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $69.99 | per year |


## Frequently asked questions

### Is WorkReply free?

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

### Is Undetectable AI free?

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

### Do WorkReply or Undetectable AI have ads?

Neither WorkReply nor Undetectable AI shows ads.

### Which is updated more often, WorkReply or Undetectable AI?

WorkReply ships an update every 5 days, and Undetectable AI every 3 days. Most recently, WorkReply was updated on October 18, 2026 and Undetectable AI on October 25, 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.*