OT Subnet Calculator

OT Subnet Calculator

Subnet Calculator & IPAM

0 ratings
1 review
Free
In-App Purchases

Details

Released
February 3, 2026
Updated
October 30, 2026

Features

OT Subnet Calculator screenshot #1 for iPhone
OT Subnet Calculator screenshot #2 for iPhone
OT Subnet Calculator screenshot #3 for iPhone
OT Subnet Calculator screenshot #4 for iPhone
iphone
iphoneDuo
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About

This app offers advanced IP subnet calculations and comprehensive IP address management (IPAM) tools. It helps organize networks, devices, and reservations with features like visual address maps, conflict checks, and collaboration options. Learn network concepts through guides and interactive examples.

✓IPv4 subnet calculations
✓IP address management (IPAM)
✓Network and device organization
✓Conflict detection
✓Collaboration via iCloud sync
✓CSV and PDF reporting
✓IPv6 exploration
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What's New in OT Subnet Calculator

4.2.1

October 30, 2026

New in version 4.2.1: OT Subnet Calculator now adapts to iPhone Duo. Compact displays keep the familiar tab navigation, while the open inner display uses a sidebar and respects the fold. A new searchable IPAM guide covers setup, devices, address planning, collaboration, backups, and best practices. Optional question-mark badges explain key IPAM features in context and can be disabled in Settings. The Home screen and primary subnet calculation action have also been refined. Calculators and Pro tools show inputs on the left and results on the right. IPAM shows folders and networks on the left, with details and devices on the right. Both panes scroll independently.

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Subscriptions & In-App Purchases

$2.99

IP Calc Profi Features

Schalte Profifeatures frei

User reviews

Super App

Bin im IT Bereich tätig. Optimal um mal schnell was nachzuschauen.

Response from developer

Danke für die Bewertung! Schnell nachschauen statt lange rechnen – genau dafür ist der OT Subnet Calculator gebaut. Freut mich, dass er dir im IT-Alltag hilft. Viele Grüße, Dominik von DMNK Digital

Developer apps

FAQ

What are the core features of OT Subnet Calculator?

The core calculators for IPv4 subnetting are free. This includes calculating network addresses, broadcast addresses, host ranges, subnet masks, and CIDR prefixes. You can also quickly select common prefixes and export results.

What is IPAM and how does OT Subnet Calculator use it?

IPAM stands for IP Address Management. OT Subnet Calculator allows you to build a central source of truth for your networks by organizing folders, networks, VLANs, devices, and reservations. It helps manage multiple addresses per device and provides a visual address map.

Is OT Subnet Calculator free to use?

The core subnet calculator features are free. Advanced tools like IPAM, collaboration features, and other pro tools are available permanently with a one-time Pro purchase, not through a subscription.

Does OT Subnet Calculator support IPv6?

Yes, OT Subnet Calculator includes an IPv6 explorer and prefix comparison tool as part of its Pro features. This allows for advanced planning and analysis of IPv6 networks.

How does OT Subnet Calculator help with network reliability?

It offers features like conflict checks to identify overlapping IP addresses, smart groups for better organization, and an audit history to track changes. This helps maintain accurate and reliable network data.

Can I collaborate with others using OT Subnet Calculator?

Yes, you can share folders with defined roles and collaborate automatically through iCloud sync. This allows multiple users to work on the same network documentation and data.

How often is OT Subnet Calculator updated?

The app was last updated on October 30, 2026, with version 4.2.1. This indicates a relatively recent update, suggesting ongoing development and support.

What devices does OT Subnet Calculator support?

Currently, OT Subnet Calculator is supported on iPhone devices. iCloud sync allows your data to be accessible across your Apple devices if you use them.