Comparison

Open MobileUI vs NAS Guard

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

Head to head
About

Open MobileUI

Access your self-hosted AI assistant on mobile with a smooth, modern, and privacy-focused client. Enjoy native performance, smart synchronization, and a mobile-first interface for productivity on the go.

Highlights
  • Native performance
  • Mobile-first interface
  • Automatic synchronization
  • Image uploads and file attachments
  • System-aware dark mode
  • Secure credential storage
Features
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Open MobileUI is an open-source, native iPhone client for Open WebUI. Connect to your self-hosted server and chat with your AI models on the go: local Ollama models, OpenAI-compatible APIs, or any LLM your Open WebUI admin has set up. Your server, your data. The app connects directly to the Open WebUI server you choose. We do not run any backend that receives, stores or processes your chats, and there are no ads. CONNECT THE WAY YOU HOST • Home lab, VPS or company server • Private networks and Tailscale, including plain HTTP addresses for local setups • Custom domains behind a reverse proxy such as Nginx, Caddy or Traefik • Encrypted HTTPS and WSS connections • Sign in with email and password, LDAP, SSO (OpenID Connect), Google, Microsoft or GitHub CHAT • Real-time streaming responses • Edit and regenerate responses • Switch between AI models in one tap • Attach photos, camera shots, files, web pages and knowledge bases • Web search, image generation and code interpreter when your server enables them • Rich rendering: Markdown, code highlighting, math formulas and source citations • Voice mode: talk to your assistant hands-free and hear the answers read aloud • Voice dictation for your messages • Temporary chats that are not saved ORGANIZE • Folders, pinned chats, search and archive • Share chats and export them BUILT FOR IPHONE • Native performance, smooth animations and gestures • Light, dark and system themes • Smart keyboard handling • Graceful handling of network interruptions • Available in English, German, Spanish, French, Portuguese, Russian, Chinese, Japanese and Romanian PERFECT FOR • Using your self-hosted AI assistant on the go • Privacy-conscious users who want full control over their data • Teams that need mobile access to their company AI assistant REQUIREMENTS Open MobileUI does not host models or provide an AI service. It connects to an Open WebUI server that you or your organization run. Available features depend on your server settings. OPEN SOURCE Open MobileUI is free and open source under the GPL-3.0 license. For support, issues and source code: https://github.com/RonasIT/open-webui-react-native Disclaimer: Open MobileUI is an independent, third-party application. It is not affiliated with the Open WebUI, Ollama or Tailscale projects.

About

NAS Guard

Monitor and control your TrueNAS SCALE server remotely from your iPhone. View live system status, storage health, and receive real-time alerts. An optional in-app purchase unlocks advanced control features.

Highlights
  • Live system monitoring dashboard
  • Storage pool and dataset status
  • Real-time alert notifications
  • Remote control of services and tasks
  • Snapshot creation and deletion
  • Home and Lock Screen widgets
Features
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NAS Guard – keep an eye on your TrueNAS, right from your iPhone. NAS Guard connects to your TrueNAS server over the encrypted WebSocket API (JSON-RPC) and shows your system's status and health clearly and in real time. MONITORING (free) - Dashboard: CPU, RAM, network throughput, load - Pools & datasets: capacity, status, scrub state - Disks: health, temperatures, ZFS errors (read/write/checksum) - Disk health forecast: drive health trend - Apps/containers, VMs and services: running status - View data protection: snapshots, Cloud Sync, Replication, Rsync, TrueCloud, Cron - Shares: SMB, NFS, iSCSI, NVMe-oF - Security & certificates, network interfaces, UPS - Your NAS system alerts FILES & PREVIEW (free) - Browse your NAS file system folder by folder, with size and modification date, folders first, and pull-to-refresh. - Rich Quick Look preview: photos (JPEG, PNG, GIF, HEIC, WebP, TIFF, BMP), PDF, plain text and code (JSON, XML, YAML, shell, Python, Swift, JS/TS, SQL and more) and office documents (Word, Excel, PowerPoint, Pages, Numbers, Keynote). - Built-in audio player (MP3, FLAC, WAV, AAC, M4A and more) with a live spectrum and waveform visualizer. - Video: MP4, MOV and M4V play directly (stream-optimized files stream without a full download). DO MORE WITH THE OPTIONAL AGENT (free, self-hosted) The NAS Guard Agent is a small container you install on your TrueNAS in one tap – just pick a pool and a port, no shell or compose editing. It keeps itself up to date automatically and adds: - Real-time alerts: get notified about outages and important events even when the app can't reach your NAS directly – faster and more reliable than background polling. - Live Activities (Control Pack): follow long-running jobs (scrub, resilver, replication, Cloud Sync, Rsync) live on the Lock Screen and Dynamic Island, updated in the background even when the app is closed. - Full media streaming: play video of any size instantly with no download, and open containers Apple can't handle natively (MKV, AVI and more) via on-the-fly HLS remux – with hardware-accelerated transcoding on Intel/AMD GPUs when available. - Runs entirely on your own NAS. IN-APP PURCHASES – honest and transparent Free: - 1 server profile - Full read/monitoring feature set, files & preview, and the optional agent Unlimited Servers (one-time purchase): - As many server profiles as you like - Background monitoring of all servers (free: only the selected one) Control Pack (one-time purchase) – unlocks all control features: - Power: shut down, reboot and wake your NAS via Wake-on-LAN - Apps/containers: start, stop, redeploy, update (single & all) - VMs: start, stop, restart - Services: start/stop - Pools: start/stop scrub - Datasets: create, edit, delete, lock/unlock - Shares: create and enable/disable (SMB, NFS, iSCSI, NVMe-oF) - Data protection: run/abort/toggle Snapshot, Cloud Sync, Replication, Rsync, TrueCloud and Cron tasks - Live Activities (with paired agent) - AI assistant: ask questions about your NAS – fully on-device via Apple Intelligence, no cloud Tip (optional): small, medium or large support for development. Unlocks no features. GOOD TO KNOW - Without the Control Pack the app is fully usable read-only – you won't control anything by accident. - Wake-on-LAN must be enabled on your NAS first (BIOS/UEFI + network card) and only works on your local network, not remotely. - The AI assistant requires an Apple Intelligence-capable device with Apple Intelligence enabled. - All purchases are one-time – no subscriptions. NAS Guard is an independent project and is not affiliated with iXsystems or TrueNAS.

Screenshots

Open MobileUI4 screens
NAS Guard4 screens

Verdict

The call

The clearest difference is review sentiment: NAS Guard at 100% against Open MobileUI's 0%. NAS Guard also leads on rating (4.9 vs 3.2) and update cadence (every 2 days vs weekly). Open MobileUI's advantage is in-app purchases (none vs 5) and iOS requirement (16.4 vs 26.0). On price, ratings volume, ads and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NAS Guard sells 5 one-off in-app purchases. Open MobileUI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NAS Guard holds the better App Store score, 4.9 against 3.2. Both are backed by a comparable volume of ratings — 23 and 8 respectively. Written reviews point the same way: 0% of Open MobileUI's written reviews are positive against 100% of NAS Guard's.

UpkeepUpdate frequency

Open MobileUI ships an update weekly, NAS Guard every 2 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 4 level
Open MobileUI versus NAS Guard: the parameters behind the verdict, then further details
ParameterOpen MobileUINAS Guard
PriceFreeFree
Rating3.2 (23 ratings)4.9 (8 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings23 — better8
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.4 — better26.0
Further details — not scored
Size64 MB6 MB
Age rating4+4+
DeveloperRonas IT OUHans Renz

Customer experience

Open MobileUI

All ratings23 ratings
Positive47.8%
Neutral4.3%
Negative47.8%
Written reviews8 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

NAS Guard

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Open MobileUI

No in-app purchases

5 purchases

NAS Guard

One-time5
  • Small Tip$0.99
  • Unbegrenzte Server$0.99
  • Control Pack$0.99
Show 2 more
  • Medium Tip$2.99
  • Large Tip$3.99

Questions

Is Open MobileUI free?
Open MobileUI is free to download, with no in-app purchases.
Is NAS Guard free?
NAS Guard is free to download, with in-app purchases available.
Which has better reviews, Open MobileUI or NAS Guard?
NAS Guard is rated higher. Open MobileUI averages 3.2 out of 5 from 23 ratings, while NAS Guard averages 4.9 from 8 ratings.
Do Open MobileUI or NAS Guard have ads?
Neither Open MobileUI nor NAS Guard shows ads.
Which is updated more often, Open MobileUI or NAS Guard?
Open MobileUI ships an update weekly, and NAS Guard every 2 days. Most recently, Open MobileUI was updated on October 15, 2026 and NAS Guard on October 8, 2026.

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