# 357 vs Neptun Deep

The clearest difference is update cadence: 357 at every 2 weeks against Neptun Deep's every 6 weeks. 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.

357 ships an update every 2 weeks, Neptun Deep every 6 weeks. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 357 | Neptun Deep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Size | 118 MB | 60 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CVU Intelligence](https://appshunter.io/developer/492670529) | [OMV Petrom](https://appshunter.io/developer/1567036456) |

## What reviewers say

### 357

[App page](https://appshunter.io/ios/app/357/id1508313398)

**Features:** Vision Pro support

**In-app purchases:** none


### Neptun Deep

[App page](https://appshunter.io/ios/app/neptun-deep/id6445847635)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 357 free?

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

### Is Neptun Deep free?

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

### Do 357 or Neptun Deep have ads?

Neither 357 nor Neptun Deep shows ads.

### Which is updated more often, 357 or Neptun Deep?

357 ships an update every 2 weeks, and Neptun Deep every 6 weeks. Most recently, 357 was updated on September 16, 2026 and Neptun Deep on September 14, 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.*