Comparison

PDF Editor vs SYNO Assistant

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

Head to head
About

PDF Editor

Edit, scan, combine, and convert documents privately on your device. This app processes all your files locally, requiring no account or cloud uploads. Work confidently with sensitive documents, even offline.

Highlights
  • Local document processing
  • Edit and organize PDFs
  • Scan paper documents
  • Convert Office files to PDF
  • Combine multiple PDFs
  • Offline functionality
Features
Read full description

Edit and create PDFs with your documents processed on your device. PDF Editor helps you edit, scan, combine, and convert documents on iPhone and iPad without sending your files to a cloud service. No account is required. Your documents stay on your device unless you choose to share or export them. PRIVATE BY DESIGN • Document processing happens locally on your device • The app does not upload your documents for conversion • No account or sign-in is required EDIT AND ORGANIZE PDFS • Reorder pages with visual previews • Remove pages you no longer need • Merge multiple PDFs into one document • Import from Files or receive documents from other apps • Rename, preview, and share your finished PDFs CREATE AND CONVERT • Scan paper documents with the camera • Turn photos and text into PDFs • Convert supported Word, Excel, and PowerPoint files to PDF offline • Choose page size, orientation, image position, scale, rotation, and layers MADE FOR IPHONE AND IPAD A focused interface adapts to both phone and tablet, with 15 supported languages and a carefully designed right-to-left experience for Arabic. Keep sensitive documents close. Work confidently, even without an internet connection. ANNOTATE AND SIGN • Highlight or underline selectable text and choose a color • View and manage supported annotations • Draw a signature or reuse one saved on this device, then position and resize it before saving MORE WAYS TO WORK • Split PDF pages while keeping the original document • Follow the illustrated guide on first launch or revisit it in Settings • Choose system, light, or dark appearance • Transfer supported files with a computer over local Wi-Fi when you choose

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

Screenshots

PDF Editor4 screens
SYNO Assistant4 screens

Verdict

The call

The clearest difference is price: SYNO Assistant at Free against PDF Editor's $0.99. SYNO Assistant also leads on rating (5.0 vs 4.0). PDF Editor's advantage is in-app purchases (none vs 3) and ratings volume (8 vs 2). On update cadence, ads, monetization model 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

SYNO Assistant is free to download; PDF Editor costs $0.99 up front. SYNO Assistant sells 3 in-app purchases, starting at $2.99 per month. PDF Editor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SYNO Assistant holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Editor versus SYNO Assistant: the parameters behind the verdict, then further details
ParameterPDF EditorSYNO Assistant
Price$0.99Free — better
Rating4.0 (8 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings8 — better2
Update frequencyEvery 9 daysEvery 9 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.017.0
Further details — not scored
Size217 MB172 MB
Age rating4+4+
Developer大鹏 张雨珂 周

Customer experience

PDF Editor

All ratings8 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SYNO Assistant

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PDF Editor

No in-app purchases

3 purchases

SYNO Assistant

Subscriptions2
  • SYNO Assistant Pro Monthly$2.991 Month
  • SYNO Assistant Pro Annual$14.991 Year
One-time1
  • SYNO Assistant Pro Lifetime$34.99

Questions

Is PDF Editor free?
PDF Editor costs $0.99, with no in-app purchases.
Is SYNO Assistant free?
SYNO Assistant is free to download, with in-app purchases available.
Which has better reviews, PDF Editor or SYNO Assistant?
SYNO Assistant is rated higher. PDF Editor averages 4.0 out of 5 from 8 ratings, while SYNO Assistant averages 5.0 from 2 ratings.
Do PDF Editor or SYNO Assistant have ads?
Neither PDF Editor nor SYNO Assistant shows ads.
Which is updated more often, PDF Editor or SYNO Assistant?
PDF Editor ships an update every 9 days, and SYNO Assistant every 9 days. Most recently, PDF Editor was updated on October 30, 2026 and SYNO Assistant on October 28, 2026.

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