Comparison

SYNO Assistant vs OpenHTML

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

Head to head
About

SYNO Assistant

Manage your Synology Network Attached Storage (NAS) remotely. Browse files, manage photos, control downloads, and monitor system status from your mobile device.

Highlights
  • File management
  • Photo browsing and sharing
  • Download task management
  • Package Center control
  • Docker container management
  • System monitoring
  • Secure remote access
Features
Read full description

[SYNO Assistant] is a mobile management tool built for Synology NAS users, letting you control your network storage anytime, anywhere. Core Features: 1. File Management - Browse all files and folders on your NAS - Upload, download, move, copy, rename, and delete files - Search files to quickly find what you need - Create share links to share files with others 2. Photo Management - Browse photos grouped by date - Switch between personal and team spaces - Quickly preview and share photos 3. Download Management - Create download tasks (BT/HTTP/FTP supported) - View real-time download progress and speed - Pause, resume, and delete download tasks 4. Package Center - Browse and install Synology packages - Manage installed packages (start/stop) 5. Docker - View and manage Docker containers - View container details and logs 6. System Management - View device info and running status - Monitor CPU and memory usage in real time - Check storage space and disk health - Remote restart / shutdown 7. Secure Login - QuickConnect remote access support - Two-factor authentication 8. Third-party services - Supports Jellyfin / Emby / Navidrome - Supports immich Privacy Policy: https://syno.thatisawesome.cn/privacy Terms of Service: https://syno.thatisawesome.cn/termofuse

About

OpenHTML

View HTML, Markdown, ZIP web projects, and source files privately on your device. Inspect and export rendered pages offline, diagnose rendering issues, and view code files securely. Designed for developers, students, and anyone needing to inspect web content safely.

Highlights
  • View HTML, Markdown, and source files
  • Import ZIP archives and web projects
  • Offline rendering with network access blocked by default
  • Diagnose rendering and resource issues
  • Export pages to PDF or long images
  • Private by default, no accounts or analytics
Features
Read full description

OpenHTML is a private, on-device viewer for HTML, Markdown, ZIP web projects and source files on iPhone and iPad. Open files from Files, Mail, chat apps, AI tools or Safari. Preview pages offline, inspect what went wrong when a file does not render, and export finished pages when you need a clean copy. What you can do: - Open .html, .htm, .xhtml and Markdown files - Import ZIP archives and multi-file web projects - Render LaTeX math in Markdown offline, with no scripts - Preview local pages with network access off by default - Diagnose missing files, blocked resources and JavaScript issues - View JSON, XML and source files with a code-friendly reader - Export full pages to PDF or long images with OpenHTML Pro - Keep selected files in your OpenHTML folder in iCloud Drive and open them on your other devices with OpenHTML Pro Private by default: OpenHTML has no accounts, no analytics and no ads. Files are copied into the app's private storage and stay on your device unless you add them to your own OpenHTML folder in iCloud Drive. Remote resources stay blocked unless you choose to allow them for a trusted document. OpenHTML is designed for developers, students, researchers, writers and anyone who receives HTML reports, AI-generated pages, saved webpages or packaged web projects and wants to inspect them safely on iOS.

Screenshots

SYNO Assistant4 screens
OpenHTML4 screens

Verdict

The call

The clearest difference is monetization model: SYNO Assistant at free against OpenHTML's free with in-app purchases. OpenHTML's advantage is ratings volume (4 vs 1). On price, rating, update cadence and ads 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. SYNO Assistant sells 3 in-app purchases, starting at $0.99 per month and OpenHTML sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SYNO Assistant against 5.0 for OpenHTML. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

SYNO Assistant ships an update weekly, OpenHTML every 5 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
SYNO Assistant versus OpenHTML: the parameters behind the verdict, then further details
ParameterSYNO AssistantOpenHTML
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Positive reviews—66.7% of reviews
Number of ratings14 — better
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size106 MB19 MB
Age rating4+4+
Developer雨珂 周吉帅 仇

Customer experience

SYNO Assistant

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

OpenHTML

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

3 purchases

SYNO Assistant

Subscriptions2
  • SYNO Assistant Pro Monthly$0.991 Month
  • SYNO Assistant Pro Annual$7.991 Year
One-time1
  • SYNO Assistant Pro Lifetime$19.99
1 purchases

OpenHTML

One-time1
  • OpenHTML Pro$0.99

Questions

Is SYNO Assistant free?
SYNO Assistant is free to download, with in-app purchases available.
Is OpenHTML free?
OpenHTML is free to download, with in-app purchases available.
Which has better reviews, SYNO Assistant or OpenHTML?
SYNO Assistant and OpenHTML are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do SYNO Assistant or OpenHTML have ads?
Neither SYNO Assistant nor OpenHTML shows ads.
Which is updated more often, SYNO Assistant or OpenHTML?
SYNO Assistant ships an update weekly, and OpenHTML every 5 days. Most recently, SYNO Assistant was updated on October 2, 2026 and OpenHTML on October 1, 2026.

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