# IPMask vs Byos

The clearest difference is ads: Byos at none against IPMask's shown. On price, update cadence, 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.

IPMask ships an update every 5 months, Byos every 3 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IPMask | Byos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ipmask-subnet-calculator/id1031084465/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 5 MB | 11 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleksei Neronov](https://appshunter.io/developer/551009381) | [Byos Inc.](https://appshunter.io/developer/1608554201) |

## What reviewers say

### IPMask

[App page](https://appshunter.io/ios/app/ipmask-subnet-calculator/id1031084465)

This utility helps calculate IP network addresses and subnetworks for IPv4. It assists in understanding IP addressing functions like host identification and location addressing within a network. The tool is useful for dividing networks into smaller subnetworks through subnetting.

**Highlights:** IP network address calculation, Subnetwork subdivision, Host identification, Location addressing, IPv4 support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Byos

[App page](https://appshunter.io/ios/app/byos/id1632088353)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IPMask free?

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

### Is Byos free?

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

### Do IPMask or Byos have ads?

IPMask shows ads; Byos does not.

### Which is updated more often, IPMask or Byos?

IPMask ships an update every 5 months, and Byos every 3 months. Most recently, IPMask was updated on October 15, 2026 and Byos on October 24, 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.*