Comparison

Shadow Vault vs SubnetBuddy

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

Head to head
About

Shadow Vault

Securely store your private notes, photos, videos, and contacts in one place. Organize your hidden data with a powerful tagging system and access it easily with biometric authentication. Sync your information across devices for seamless management.

Highlights
  • Biometric lock (Touch ID/Face ID)
  • iCloud sync
  • Markdown support for notes
  • Delete original media after import
  • Omni toolbar for editing
  • Tagging system for organization
Features
Read full description

Store your notes, photos and videos, contacts all in one app! With a powerful tagging system to help you organize and navigate all your hidden data. You will need to enable lock screen after installing app in order to use the feature. Features: - Lock Screen with support for Touch ID and Face ID - iCloud sync so you can use across your iPhone and iPad - Markdown support for notes - Support to delete original photos and videos after import to [App Name] - Omni toolbar with consistent UX to help you edit at any tabs.

About

SubnetBuddy

Features
Read full description

SubnetBuddy is a fast, offline subnet calculator and network planning tool built for IT professionals, network engineers, students, and anyone studying for their CCNA, CompTIA Network+, or just needs to crunch CIDR notation on the fly. No internet required. No ads. No account needed. Just open the app and start calculating. SUBNET CALCULATOR • Enter any IP address and CIDR prefix (e.g. 192.168.1.0/24) • Instantly see network address, broadcast address, first and last usable host • View total hosts, usable hosts, and wildcard mask • Get the next sequential subnet with one tap • Supports all prefix lengths from /0 to /32 MASK CONVERTER • Convert between CIDR notation, dotted decimal, and binary • Enter a prefix length and see all three formats instantly • Quick-reference for common subnet masks • Perfect for exam prep and on-the-job lookups VLAN PLANNER • Plan multiple VLANs with custom names and sizes • Set a base network and SubnetBuddy calculates non-overlapping subnets for each VLAN • See network range, gateway, CIDR, and host count per VLAN • Great for designing office networks, lab environments, and homework assignments IP VISUALIZER • Enter a CIDR block and see a visual map of the IP address space • Color-coded grid shows used vs. available addresses • Instantly understand how big (or small) your subnet really is • Tap any cell to see the full IP address TERMINAL-STYLE DESIGN • Dark theme with VibeCMD's signature hacker-green aesthetic • Monospace fonts and command-line inspired interface • Clean, distraction-free layout built for speed • Easy on the eyes during late-night study sessions WORKS COMPLETELY OFFLINE • Zero network calls — all calculations happen on-device • No account required — open and use immediately • No data collection — your network plans stay on your phone • Lightning fast — results appear as you type BUILT FOR REAL PEOPLE • IT professionals doing quick subnet math on-site • Students studying for CCNA, Network+, or any networking exam • Homelab enthusiasts planning their network segments • DevOps engineers carving up VPC address spaces • Anyone who's tired of Googling "what is /22 in dotted decimal" SubnetBuddy is a utility tool for network address calculations. It does not connect to or scan any networks.

Screenshots

Shadow Vault4 screens
SubnetBuddy4 screens

Verdict

The call

The clearest difference is in-app purchases: SubnetBuddy at none against Shadow Vault's 1. SubnetBuddy also leads on ads (none vs shown) and update cadence (daily vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Shadow Vault sells 1 one-off in-app purchase. SubnetBuddy asks for nothing beyond the download.

UpkeepUpdate frequency

Shadow Vault ships an update every 5 weeks, SubnetBuddy daily. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

Scorecard3 real differences Ā· 5 level
Shadow Vault versus SubnetBuddy: the parameters behind the verdict, then further details
ParameterShadow VaultSubnetBuddy
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 5 weeksDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size13 MB24 MB
Age rating4+4+
DeveloperTung VuVibeCMD

In-app purchases

1 purchases

Shadow Vault

One-time1
  • Remove Advertisement$7.99
None

SubnetBuddy

No in-app purchases

Questions

Is Shadow Vault free?
Shadow Vault is free to download, with in-app purchases available.
Is SubnetBuddy free?
SubnetBuddy is free to download, with no in-app purchases.
Do Shadow Vault or SubnetBuddy have ads?
Shadow Vault shows ads; SubnetBuddy does not.
Which is updated more often, Shadow Vault or SubnetBuddy?
Shadow Vault ships an update every 5 weeks, and SubnetBuddy daily. Most recently, Shadow Vault was updated on September 29, 2026 and SubnetBuddy on October 10, 2026.

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