IP Keypad vs Simple Cidr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IP Keypad
Calculate network, host, and broadcast addresses with a dedicated keypad. Supports classful and classless modes, with pickers for subnet mask and prefix length. Includes special-purpose address information based on RFC standards.
- Dedicated keypad
- Subnet mask and prefix length pickers
- Network, host, and broadcast address calculation
- Classful and classless modes
- RFC 6890/5735 special-purpose address display
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This app is a subnet calculator. -Dedicated keypad. -Pickers for subnet mask and prefix length. -Calculate addresses (network,host,directed broadcast). -Classfull and classless mode. === Please note === "Special-Purpose" in version 3.0.0 and later is shown based on the RFC 6890(April 2013). "special use" in version 2.3.2 and before is shown based on the RFC 5735 (January 2010).
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 ads: Simple Cidr at none against IP Keypad's shown. Simple Cidr also leads on iOS requirement (17.6 vs 26.0). IP Keypad's advantage is update cadence (every 2 months vs every 30 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
IP Keypad ships an update every 2 months, Simple Cidr every 30 months. The most recent releases landed on September 3, 2026 and September 8, 2026 respectively.
| Parameter | IP Keypad | Simple Cidr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (141 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 141 — better | — |
| Update frequency | Every 2 months — better | Every 30 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| 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
IP Keypad
No in-app purchases
Simple Cidr
No in-app purchases
