Prefixloom: Subnet Planner

Robert Corbin · Utilities

$2.99

Independent analytics for this App Store listing. AppTracker is not affiliated with Robert Corbin.

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Sep 12, 2026
Promotional text “A local subnet planning desk: compare assigned and reserved ranges, plan CIDR growth, and get address coordination out of a spreadsheet — for engineers and homelabs.”
Sep 5, 2026
Price change Free → 2.99 USD
Sep 3, 2026
Price change 2.99 USD → Free
Aug 31, 2026
Promotional text Removed
Aug 31, 2026
New version 1.0 → 1.1

Roughly 67 MB of image files were included in the download but never shown. They have been removed. Subnet maths is untouched.

Aug 26, 2026
Price change 1.99 USD → 2.99 USD

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront. A field is charted once it has changed more than once, and each line starts at the value it moved from.

Price history in USD over the observed period. Free 1 2 3 Aug 23 Sep 5 Sep 19 Oct 2 Oct 16

Price · 2.99 USD now · 3 changes on record

Screenshots

About

Prefixloom is a focused local subnet planning desk for network engineers, homelab operators, consultants, students, and small teams still coordinating addresses in spreadsheets. Compare assigned and reserved addresses with projected growth before a block becomes an operational constraint. KEY FEATURES - CIDR capacity and utilization model - Projected-growth multiplier - Reserved-address accounting - Address pressure visualization - VLAN and owner records - Editable current and proposed intent - CSV inventory import - Offline planning packet - Local PDF and JSON export - No account, ads, analytics, tracking, IAP, or subscription Prefixloom performs deterministic IPv4 capacity planning from recorded inputs; it does not discover live devices, reserve addresses, configure routers, or replace authoritative IPAM. Verify overlap, routing, DHCP, VRFs, security zones, cloud reservations, and current assignments before deployment.

What's new · 1.1

Roughly 67 MB of image files were included in the download but never shown. They have been removed. Subnet maths is untouched.

Details

DeveloperRobert Corbin
ReleasedJul 2026
UpdatedJul 2026
Version1.1
Size72.5 MB
RequiresiOS 17.0 or later
Age rating4+
LanguagesEnglish
Price$2.99
Categories UtilitiesDeveloper Tools
Bundle IDcom.realbobcorbin.Prefixloom