About Subnet Mask vs VLSM | Subnet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
About Subnet Mask
This utility tool calculates subnet masks based on IP and subnet inputs. It supports both IP and CIDR formats, determines class-based network numbers, and saves previous calculations for easy access. Users can also check the class of any IP address.
- Subnet mask calculation
- IP and CIDR format support
- Class-based network number calculation
- IP class checking
- Search history
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I believe. My App makes your life more valuable. You will be the greatest better than ever and shine with me. This is a Subnet Calculator. Enter your IP and Subnet. That is all! Subnet mask could write IP format or CIDR format. It also calculates the class-based network number. The search was saved at history and click to lead result. You can check the class of IP. Thank you. :) If there are any incorrect translations, please contact us by email at starlightlab14@gmail.com
VLSM | Subnet
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Network, Mask, Wildcard, Broadcast, First Host, Last Host, Requested hosts, Available hosts
Screenshots
Verdict
The clearest difference is ads: VLSM | Subnet at none against About Subnet Mask's shown. About Subnet Mask's advantage is update cadence (every 9 days vs every 9 months). On price, in-app purchases, device support and iOS requirement 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.
About Subnet Mask ships an update every 9 days, VLSM | Subnet every 9 months. The most recent releases landed on November 3, 2026 and October 17, 2026 respectively.
| Parameter | About Subnet Mask | VLSM | Subnet |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 9 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Jaehwa Noh | Edwin Mejia |
In-app purchases
About Subnet Mask
No in-app purchases
VLSM | Subnet
No in-app purchases
Questions
Is About Subnet Mask free?
Is VLSM | Subnet free?
Do About Subnet Mask or VLSM | Subnet have ads?
Which is updated more often, About Subnet Mask or VLSM | Subnet?
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