# Subnet Plus vs VSP

The clearest difference is review sentiment: Subnet Plus at 89% against VSP's 11%. Subnet Plus also leads on rating (4.7 vs 1.2) and update cadence (monthly vs every 3 months). VSP's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, monetization model and device support there is nothing between them.

Both are free to download. Subnet Plus sells 1 one-off in-app purchase. VSP asks for nothing beyond the download.

Subnet Plus holds the better App Store score, 4.7 against 1.2. Both are backed by a comparable volume of ratings — 57 and 18 respectively. Written reviews point the same way: 89% of Subnet Plus's written reviews are positive against 11% of VSP's.

Subnet Plus ships an update monthly, VSP every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Subnet Plus | VSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (57 ratings)](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668/reviews)** | [1.2 (18 ratings)](https://appshunter.io/ios/app/vsp/id1364393567/reviews) |
| Number of ratings | **57** | 18 |
| Positive reviews | **89.2% of reviews** | 11.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 18 MB | 108 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ted Trentler](https://appshunter.io/developer/380264826) | [VSP Softphone](https://appshunter.io/developer/1359605100) |

## 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


### VSP

[App page](https://appshunter.io/ios/app/vsp/id1364393567)

This VoIP softphone connects to the VSP Platform, requiring an administrator-generated account for login. It allows enterprises and operators to manage softphone settings and configurations. Emergency call functionality is limited and not intended for such use.

**Highlights:** VoIP softphone client, VSP Platform integration, Administrator account required, Enterprise provisioning, Softphone settings management, Limited emergency call handling

**Features:** macOS Compatibility, Siri integration, 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 VSP free?

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

### Which has better reviews, Subnet Plus or VSP?

Subnet Plus is rated higher. Subnet Plus averages 4.7 out of 5 from 57 ratings, while VSP averages 1.2 from 18 ratings.

### Do Subnet Plus or VSP have ads?

Subnet Plus shows ads; VSP does not.

### Which is updated more often, Subnet Plus or VSP?

Subnet Plus ships an update monthly, and VSP every 3 months. Most recently, Subnet Plus was updated on November 1, 2026 and VSP on November 2, 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.*