AppMarketSpy › Reference › SubnetDeck: Subnet Calculator
SubnetDeck: Subnet Calculator
Offline IP Planner, VLSM, CIDR
Yoshihiko Ishikawa · Reference
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App info
- Developer
- Yoshihiko Ishikawa
- Category
- Reference, Utilities
- Released
- Oct 22, 2026
- Version
- 1.0 (Oct 23, 2026)
- Price
- Free
- Size
- 7.5 MB
- Requires
- iOS 18.0
- Age rating
- 4+
- Languages
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
In-app purchases
| Premium | $9.99 |
Current prices, App Store US.
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About SubnetDeck: Subnet Calculator
SubnetDeck is an offline subnet calculator and IP address planning kit for network engineers and IT staff. It never connects to the internet, so it keeps working in server rooms, data centers, factories, closed networks and during outages. FREE • IPv4 and IPv6 calculator with a keypad that only accepts valid input (hardware keyboards supported) • Binary boundary bar that shows exactly where the network bits end • Network, broadcast, first and last address, usable hosts, wildcard mask and reverse DNS zone • /31 (RFC 3021) and /32 handled correctly; special-purpose addresses identified • 11 Learn topics: masks and prefixes, why two addresses are subtracted, five kinds of overlap, VLSM and FLSM, IPv6 and more • 13 of the 69 playbooks PREMIUM (one-time In-App Purchase, no subscription) • All 69 playbooks in 9 categories: private ranges, single sites, multi-site WAN with route aggregation,…
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