# CIDR Calc vs Backend Pulse

The clearest difference is in-app purchases: CIDR Calc at none against Backend Pulse's 1. Backend Pulse's advantage is update cadence (fortnightly vs every 19 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Backend Pulse sells 1 one-off in-app purchase. CIDR Calc asks for nothing beyond the download.

CIDR Calc ships an update every 19 months, Backend Pulse fortnightly. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CIDR Calc | Backend Pulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr-calc/id1565667811/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 1 MB | 26 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Paul Smicker](https://appshunter.io/developer/1565667813) | [Hangzhou Lushi Yuye Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1532592953) |

## What reviewers say

### CIDR Calc

[App page](https://appshunter.io/ios/app/cidr-calc/id1565667811)

Calculate subnet details, including IP addresses, masks, and reverse masks, using CIDR notation. Generate and share lists of subnets and hosts within the next higher octet. This tool simplifies network calculations for IT professionals and students.

**Highlights:** Subnet calculation, IP address display, Mask and reverse mask, Shareable subnet lists, Host calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Backend Pulse

[App page](https://appshunter.io/ios/app/backend-pulse/id6753865381)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-Month VIP | $0.99 | one-time |


## Frequently asked questions

### Is CIDR Calc free?

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

### Is Backend Pulse free?

Backend Pulse is free to download, with in-app purchases available.

### Do CIDR Calc or Backend Pulse have ads?

Neither CIDR Calc nor Backend Pulse shows ads.

### Which is updated more often, CIDR Calc or Backend Pulse?

CIDR Calc ships an update every 19 months, and Backend Pulse fortnightly. Most recently, CIDR Calc was updated on October 10, 2026 and Backend Pulse on October 25, 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.*