Comparison

RAID Calc2 vs Docker Guard

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

Head to head
About

RAID Calc2

Features
Read full description

RAID Calc2 is retiring. It leaves the App Store on December 31, 2026. It keeps working on your device after that, but won’t get updates. Its successor is RAID Calculator, from the same developer. It’s the same calculator, plus NAS planning for Synology SHR, Unraid, ZFS, SnapRAID and Btrfs, RAID 50 and 60, and RAID-Z. Search the App Store for β€œRAID Calculator”, or tap the banner in the app. UNTIL THEN, RAID CALC2 STILL DOES THE JOB β€’ RAID 0, 1, 5, 6, 10 and JBOD β€’ Usable and raw capacity, and how efficient the layout is β€’ What the space will show as in TiB, the binary units most systems report β€’ A drive strip showing which drives hold data, parity or mirrors β€’ How many drive failures the array survives β€’ Speed and availability ratings, with a plain-language guide to every level β€’ A caution before a risky rebuild on large drives, with a one-tap switch to RAID 6 β€’ One-tap fixes when the drive count doesn’t suit the level ON EVERY SCREEN β€’ On iPad, and on iPhone Duo opened in landscape, results sit beside inputs β€’ Rotates to landscape on iPhone β€’ Built for iOS 26 with native controls and Liquid Glass β€’ Dark mode, Dynamic Type at every size, and full VoiceOver support β€’ In English, Spanish, French, Italian, Japanese, German, Traditional and Simplified Chinese, Korean and Brazilian Portuguese PRIVATE No accounts, no tracking, no ads. Everything stays on your device. Not affiliated with or endorsed by Synology Inc. Synology and SHR are trademarks of Synology Inc. Not affiliated with or endorsed by Lime Technology, Inc. Unraid is a trademark of Lime Technology, Inc. ZFS is a trademark of Oracle and/or its affiliates. Not affiliated with or endorsed by Oracle.

About

Docker Guard

Features
Read full description

Docker Guard is the fastest way to keep an eye on your Docker hosts from your iPhone or iPad. Docker Guard is a native iPhone and iPad monitoring client for your self-hosted Docker environment. It requires the free, open-source Docker Guard Agent running on your Docker host. Connect to any server running the open-source Docker Guard Agent and get a live, industrial-style dashboard of everything that matters β€” CPU load, memory usage, and the state of every container, image, volume and network. When something needs a nudge, start, stop or restart containers with a single tap. LIVE DASHBOARD - Circular gauges for aggregated CPU and memory usage across all running containers - Sparkline history so you can spot trends at a glance - Engine version, architecture and host name at the top - Counts for containers, images, volumes and networks, always up to date CONTAINER CONTROL - Full container list with status, image and ports - One-tap start, stop and restart - Filter running vs. stopped - Detail view with environment and mount information IMAGES, VOLUMES, NETWORKS - Browse every image on the host with size and tags - Inspect volumes and their drivers - See each Docker network and its driver PRIVACY AND SECURITY FIRST - Your data never touches our servers. The app talks directly to your own Docker Guard Agent over HTTPS. - TLS certificates are pinned on first use (TOFU). Any change is flagged with a clear warning β€” you decide whether to trust the new fingerprint. - API key authentication for every request. - All credentials and certificate fingerprints live in the iOS Keychain. - Optional Face ID / Touch ID app lock keeps the app protected even if your device is unlocked. BUILT FOR iOS 26 - Native SwiftUI with the Liquid Glass look and feel - Swift 6 strict concurrency, main-actor by default - iPhone and iPad layouts, portrait and landscape - Light and dark mode - English and German SELF-HOSTED BY DESIGN The Docker Guard Agent is a small, open-source Rust service you run on your own machine as a Docker container. It mounts only the Docker socket, exposes a minimal HTTPS API, and generates its own self-signed certificate on first boot. No cloud relay, no telemetry, no third parties. Full setup instructions and the agent source are available on the Docker Guard website. Docker Guard is an independent project and is not affiliated with or endorsed by Docker Inc.

Screenshots

RAID Calc23 screens
Docker Guard2 screens

Verdict

The call

The clearest difference is in-app purchases: RAID Calc2 at none against Docker Guard's 1. Docker Guard's advantage is update cadence (daily vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

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

Both are free to download. Docker Guard sells 1 one-off in-app purchase. RAID Calc2 asks for nothing beyond the download.

UpkeepUpdate frequency

RAID Calc2 ships an update every 5 months, Docker Guard daily. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

Scorecard2 real differences Β· 4 level
RAID Calc2 versus Docker Guard: the parameters behind the verdict, then further details
ParameterRAID Calc2Docker Guard
PriceFreeFree
Update frequencyEvery 5 monthsDaily β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.0 β€” better26.4
Further details β€” not scored
Size7 MB2 MB
Age rating12+4+
DeveloperTodd GrecoHans Renz

In-app purchases

None

RAID Calc2

No in-app purchases

1 purchases

Docker Guard

One-time1
  • Control Pack$3.99

Questions

Is RAID Calc2 free?
RAID Calc2 is free to download, with no in-app purchases.
Is Docker Guard free?
Docker Guard is free to download, with in-app purchases available.
Do RAID Calc2 or Docker Guard have ads?
Neither RAID Calc2 nor Docker Guard shows ads.
Which is updated more often, RAID Calc2 or Docker Guard?
RAID Calc2 ships an update every 5 months, and Docker Guard daily. Most recently, RAID Calc2 was updated on October 16, 2026 and Docker Guard on October 15, 2026.

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