# Neptune vs Undetectable AI°

The clearest difference is review sentiment: Undetectable AI° at 54% against Neptune's 0%. Undetectable AI° also leads on rating (4.7 vs 3.8) and ratings volume (616 vs 4). Neptune's advantage is in-app purchases (none vs 7). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Undetectable AI° sells 6 in-app purchases, starting at $7.99 per 7 days. Neptune asks for nothing beyond the download.

Undetectable AI° holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Undetectable AI° has 616 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Neptune's written reviews are positive against 54% of Undetectable AI°'s.

Neptune ships an update fortnightly, Undetectable AI° every 2 weeks. Both last shipped on November 7, 2026.

## The numbers

| Metric | Neptune | Undetectable AI° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/neptune/id1642910188/reviews) | **[4.7 (616 ratings)](https://appshunter.io/ios/app/undetectable-ai/id1662248382/reviews)** |
| Number of ratings | 4 | **616** |
| Positive reviews | 0.0% of reviews | **54.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 476 MB | 25 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [LLC CORPORATE MOBILITY](https://appshunter.io/developer/1642910190) | [Abhinav Khanger](https://appshunter.io/developer/1581073207) |

## What reviewers say

### Neptune

[App page](https://appshunter.io/ios/app/neptune/id1642910188)

A secure communication platform for businesses to connect employees, clients, and partners. It offers text messaging, file sharing, encrypted group chats, and video conferencing.

**Highlights:** Text messaging, File sharing (photos, videos, documents), Encrypted group chats, Automatic chat cleanup, Notification channels, Audio/Video conferences, Corporate directory search

**Features:** Vision Pro support

**In-app purchases:** none


### Undetectable AI°

[App page](https://appshunter.io/ios/app/undetectable-ai/id1662248382)

This AI-powered tool helps you generate engaging text for marketing materials. Create social media posts, email campaigns, and website content quickly and easily to connect with your audience and achieve results.

**Highlights:** AI-powered text generation, Marketing content creation, Social media posts, Email campaigns, Website content

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Weekly | $7.99 | per 7 days |
| Monthly | $9.99 | per month |
| Special Discount | $39.99 | per year |
| Yearly | $57.00 | per year |
| Yearly | $59.99 | per year |

**What reviewers like**

- 👍 Adopts user's style
- 🚀 Undetectable AI
- 💡 Great free version
- 👍 Helpful
- 👍 Good app

**What reviewers complain about**

- 💰 Charges more than expected
- 🐛 Formatting issues
- 🐛 Not working
- 🐛 AI-generated text detected
- 🔒 Stole user's money

**Reported bugs**

- Formatting issues
- App not working
- AI detection issues

**Requested features**

- Improve formatting
- Fix app not working issues
- Improve AI detection


## Frequently asked questions

### Is Neptune free?

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

### Is Undetectable AI° free?

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

### Which has better reviews, Neptune or Undetectable AI°?

Undetectable AI° is rated higher. Neptune averages 3.8 out of 5 from 4 ratings, while Undetectable AI° averages 4.7 from 616 ratings.

### Do Neptune or Undetectable AI° have ads?

Neither Neptune nor Undetectable AI° shows ads.

### Which is updated more often, Neptune or Undetectable AI°?

Neptune ships an update fortnightly, and Undetectable AI° every 2 weeks. Most recently, Neptune was updated on November 7, 2026 and Undetectable AI° on November 7, 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.*