# Subnet Plus vs FlightDeck PAX

The clearest difference is price: Subnet Plus at Free against FlightDeck PAX's $4.99. Subnet Plus also leads on update cadence (every 2 weeks vs every 5 weeks). FlightDeck PAX's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Subnet Plus is free to download; FlightDeck PAX costs $4.99 up front. Subnet Plus sells 1 one-off in-app purchase. FlightDeck PAX asks for nothing beyond the download.

Subnet Plus ships an update every 2 weeks, FlightDeck PAX every 5 weeks. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Subnet Plus | FlightDeck PAX |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.6 (54 ratings)](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 89.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 12 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ted Trentler](https://appshunter.io/developer/380264826) | [GNK Softworks Ltd](https://appshunter.io/developer/1548276516) |

## What reviewers say

### Subnet Plus

[App page](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668)

Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.

**Highlights:** Subnet calculation, Save calculated networks, Binary and hex display, Network address ranges, Broadcast IP addresses, Study aid for networking exams

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Convenient and simple interface
- 👍 Practical and useful tool
- 👍 Saves locations and provides needed information
- 👍 Smart layout
- 👍 Great use of sliding octets for real-time effects

**What reviewers complain about**

- 🐛 Interface needs work
- 🐛 Text in subnet netmask field too large
- 🐛 Last octet not visible
- 🐛 No apparent way to enlarge field or change text
- 🐛 No landscape mode for iPad Pro

**Reported bugs**

- Text in subnet netmask field too large, last octet not visible
- Values truncated, cannot view full values
- Subnet mask and IP addresses truncated
- Cannot read all data
- Numbers truncated on iPhone 5s

**Requested features**

- Export option to share saved subnets
- Pay to remove ads
- Landscape mode for iPad Pro
- Update for visualising or adjusting screen on iOS 9
- Ability to type netmask


### FlightDeck PAX

[App page](https://appshunter.io/ios/app/flightdeck-pax/id6753647941)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Plus free?

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

### Is FlightDeck PAX free?

FlightDeck PAX costs $4.99, with no in-app purchases.

### Do Subnet Plus or FlightDeck PAX have ads?

Subnet Plus shows ads; FlightDeck PAX does not.

### Which is updated more often, Subnet Plus or FlightDeck PAX?

Subnet Plus ships an update every 2 weeks, and FlightDeck PAX every 5 weeks. Most recently, Subnet Plus was updated on October 12, 2026 and FlightDeck PAX on October 13, 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.*