# Subnet Calculator + vs CRISACCESS ® Tours

The clearest difference is in-app purchases: CRISACCESS ® Tours at none against Subnet Calculator +'s 4. CRISACCESS ® Tours also leads on update cadence (every 11 months vs every 64 months) and iOS requirement (15.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Subnet Calculator + sells 4 one-off in-app purchases. CRISACCESS ® Tours asks for nothing beyond the download.

Subnet Calculator + ships an update every 64 months, CRISACCESS ® Tours every 11 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Subnet Calculator + | CRISACCESS ® Tours |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 11 months** |
| Monetization | Free | — |
| Size | 1 MB | 109 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steven Eppler](https://appshunter.io/developer/312274388) | [Connecticut Radio Information System, Inc.](https://appshunter.io/developer/1092948584) |

## What reviewers say

### Subnet Calculator +

[App page](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645)

This utility app simplifies network calculations for professionals and students. It offers tools for IPv4 and IPv6 subnetting, including live CIDR sliders and subnet splitting. Results can be easily shared or copied.

**Highlights:** IPv4 subnet calculator with CIDR slider, Subnet Splitter for VLSM, IPv6 calculator with prefix slider, Auto-detect device IP from Wi-Fi, Navigate adjacent subnets, Share or copy results, Native Mac support

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $4.99 | one-time |
| Huge Tip | $9.99 | one-time |


### CRISACCESS ® Tours

[App page](https://appshunter.io/ios/app/crisaccess-tours/id6444062787)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Calculator + free?

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

### Is CRISACCESS ® Tours free?

CRISACCESS ® Tours is free to download, with no in-app purchases.

### Do Subnet Calculator + or CRISACCESS ® Tours have ads?

Neither Subnet Calculator + nor CRISACCESS ® Tours shows ads.

### Which is updated more often, Subnet Calculator + or CRISACCESS ® Tours?

Subnet Calculator + ships an update every 64 months, and CRISACCESS ® Tours every 11 months. Most recently, Subnet Calculator + was updated on October 27, 2026 and CRISACCESS ® Tours on October 27, 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.*