Comparison

Subnet Calculator + vs SJ IPv4 Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Subnet Calculator +

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
Read full description

SubnetCalc is a fast, intuitive subnet calculator for networking professionals and students. Features: - IPv4 subnet calculator with live CIDR slider (1-30) - Subnet Splitter for equal-split and VLSM subdivision - IPv6 calculator with prefix slider (1-128) - Auto-detect your device's IP and subnet from Wi-Fi - Navigate between adjacent subnets - Share or copy results instantly - Native Mac support via Mac Catalyst Enter any IP address, adjust the CIDR prefix with the slider, and instantly see: - Subnet mask - Network address - Broadcast address - Usable host range - Maximum hosts - Wildcard mask The Subnet Splitter lets you divide a network into equal subnets or use VLSM to allocate subnets by host count. Perfect for network planning and design. No ads. No tracking. No subscription.

About

SJ IPv4 Calculator

Features
Read full description

############################# # IPV4 CALCULATOR # ############################# The essential tool for IT professionals and students! IPv4 Calculator allows you to instantly calculate your subnet details (Netmask, CIDR, Broadcast, IP Range). +----------------------------------------+ | WHY THIS APPLICATION? | +----------------------------------------+ [ BIDIRECTIONAL CALCULATION ] - Enter a classic mask (255.255.255.0) or CIDR (/24). - Automatic conversion in both directions. [ INSTANT RESULTS ] - Immediately get the Broadcast and usable IP range. - No "Calculate" button, everything is in real-time. [ SIMPLE AND PROFESSIONAL ] - Clean and efficient interface. - Ideal for network technicians and system admins. Download it today!

Screenshots

Subnet Calculator +3 screens
SJ IPv4 Calculator3 screens

Verdict

The call

The clearest difference is ads: Subnet Calculator + at none against SJ IPv4 Calculator's shown. SJ IPv4 Calculator's advantage is update cadence (weekly vs every 64 months) and iOS requirement (16.0 vs 18.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Subnet Calculator + sells 4 one-off in-app purchases and SJ IPv4 Calculator sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Subnet Calculator + ships an update every 64 months, SJ IPv4 Calculator weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Subnet Calculator + versus SJ IPv4 Calculator: the parameters behind the verdict, then further details
ParameterSubnet Calculator +SJ IPv4 Calculator
PriceFreeFree
Rating4.0 (7 ratings) — better—
Positive reviews52.9% of reviews—
Number of ratings7 — better—
Update frequencyEvery 64 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.616.0 — better
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperSteven EpplerStephane JAILLIARD

In-app purchases

4 purchases

Subnet Calculator +

One-time4
  • Small Tip$0.99
  • Medium Tip$1.99
  • Large Tip$4.99
Show 1 more
  • Huge Tip$9.99
5 purchases

SJ IPv4 Calculator

One-time5
  • A coffee$0.99
  • A cookie$2.99
  • A lemon tart$4.99
Show 2 more
  • No ads$4.99
  • A pizza$9.99

Questions

Is Subnet Calculator + free?
Subnet Calculator + is free to download, with in-app purchases available.
Is SJ IPv4 Calculator free?
SJ IPv4 Calculator is free to download, with in-app purchases available.
Do Subnet Calculator + or SJ IPv4 Calculator have ads?
SJ IPv4 Calculator shows ads; Subnet Calculator + does not.
Which is updated more often, Subnet Calculator + or SJ IPv4 Calculator?
Subnet Calculator + ships an update every 64 months, and SJ IPv4 Calculator weekly. Most recently, Subnet Calculator + was updated on November 1, 2026 and SJ IPv4 Calculator on October 30, 2026.

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