Subnet Mask vs Simple Cidr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subnet Mask
This app provides a quick way to calculate subnet masks and host addresses. It features a keypad for CIDR notation and allows for manipulation of keys via swipe gestures, functioning like a slider. It can also be used to determine wildcard masks and the number of addresses.
- Subnet mask calculation
- Host address calculation
- CIDR notation keypad
- Swipe key manipulation
- Wildcard mask calculation
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This is the keypad for subnet mask. It has keys of prefix (CIDR notation). The subnet mask and number of host addresses are shown by single tap. Keys are manipulated also by swipe. It behaves like a slider. This App can be mutated to the keypad for wildcard mask. It shows wild card mask and number of addresses.
Simple Cidr
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I often found that I didn't want a complicated calculator to translate Cidr notation into subnet mask and so fourth. So I made a simple one...
Screenshots
Verdict
The clearest difference is in-app purchases: Simple Cidr at none against Subnet Mask's 1. Simple Cidr also leads on ads (none vs shown) and iOS requirement (17.6 vs 26.0). Subnet Mask's advantage is update cadence (every 6 months vs every 30 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Subnet Mask sells 1 one-off in-app purchase. Simple Cidr asks for nothing beyond the download.
Subnet Mask ships an update every 6 months, Simple Cidr every 30 months. The most recent releases landed on June 10, 2026 and September 8, 2026 respectively.
| Parameter | Subnet Mask | Simple Cidr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (31 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Every 6 months — better | Every 30 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Takahiro Furuya | Luke Pilkington |
In-app purchases
Subnet Mask
- Remove ads$0.99
Simple Cidr
No in-app purchases
