Comparison

Systweak PDF Editor vs Digital Clock

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

Head to head
About

Systweak PDF Editor

Easily scan, edit, and manage PDF documents on your iPhone. This app allows you to create, annotate, sign, protect, and fill forms in PDFs with just a few taps. Keep all your files securely stored locally on your device.

Highlights
  • Scan and edit PDF content
  • Create PDFs from scratch or photos
  • Annotate with highlights and notes
  • Add digital or drawn signatures
  • Secure PDFs with passwords
  • Fill and save PDF forms
  • Merge and compress PDF files
Read full description

Scan, Edit, Annotate, Protect & Sign PDFs in a Tap Scan, edit, and smartly manage your PDFs with Systweak PDF Editor. This all-in-one, lightweight app lets you scan, edit, annotate, create, sign, protect, and fill forms in PDF documents, all on the go, directly from your iPhone. Import existing PDFs into the app, then read, comment, edit, encrypt, and share them with just a few taps.

 No more printing, scanning, or switching devices, as everything you need to work with PDF files is right on your iPhone! Key Features: • Edit PDF Content – Add or modify text directly within your PDF. • Create PDF - Create PDF from scratch in different sizes and scanned photos. • Annotate with Ease – Highlight, underline, strikethrough, add notes, etc. • Add Signatures – Draw and insert e-signatures or digital signatures. • Secure PDF – Protect your PDFs with passwords or restrict copying/printing. • Form Filling – Easily fill PDF forms and save them for sharing or printing. • Watermark – Add text/image watermarks for branding or confidentiality. • Page Management – Reorder, rotate, insert, extract, duplicate, or delete PDF pages. • Merge PDF - Combine PDFs to create a single document. • Compress PDF - Optimize PDF and reduce the size of large PDFs. Benefits: Perform All Essential PDF Tasks: • Open and view PDF files quickly with the built-in PDF reader • Scroll, zoom, and search through lengthy documents effortlessly • Adjust page layout with tools like rotate, reorder, or extract pages Annotate PDF Files: • Add comments using sticky notes • Highlight, underline, strikethrough, or freehand draw to mark up content • Collaborate by sharing your marked-up documents instantly Sign Important Documents: • Fill out PDF forms directly by typing into fields • Add a digital signature or upload scanned signature images • Place and resize your signature exactly where needed
 Secure and Protect PDFs: • Add or remove password protection for sensitive documents • Encrypt files with different levels (128-bit RC4, 128-bit AES, and 256-bit AES) and save or share them, ensuring document privacy 
Additional Tools • Merge multiple PDF s into one file or split them as required • Compress large PDF files to make sharing easier without losing quality • Add watermarks for branding or verification • Bookmark pages for quick navigation • Mark important files as favorites for easy access anytime All Files Are Stored Locally: Your privacy matters. All documents are saved directly on your device and are never uploaded to our servers or shared with third parties. You have full control of your data. How to Get Started: • Install Systweak PDF Editor on your iOS device. • Open the PDF to work with or create a new PDF document. • Thereafter, using different PDF tools, you can edit, annotate, fill forms, add watermarks, sign, protect, and perform various operations on PDFs. • Save and share (as per the requirement) your final document.

About

Digital Clock

Transform your device into a retro LED digital clock with a dot matrix design. Offers multiple time formats, vibrant color options, and a full-screen display. Ideal for bedside tables, desks, or any space needing an elegant timepiece.

Highlights
  • Authentic dot matrix design
  • Multiple time formats (12/24 hr, seconds on/off)
  • 6 vibrant LED color options
  • Full-screen display
  • Optimized for all iPhones and iPads
  • Simple tap-to-access settings
Features
Read full description

Transform your iPhone or iPad into a stunning retro LED display with this beautifully crafted digital clock app. Experience Nostalgic Digital Beauty Relive the classic era of LED displays with our authentic dot matrix design. Each number is rendered using hundreds of individual glowing dots, creating that iconic retro aesthetic that defined the digital age. Perfect for Any Space Whether it's your bedside table, kitchen counter, or office desk, this full-screen clock turns your iPhone or iPad into an elegant timepiece that's both functional and decorative. Features: Multiple Time Formats - Switch between 12-hour and 24-hour display - Toggle seconds on/off (HH:MM:SS or HH:MM) Beautiful Color Options - Choose from 6 vibrant LED colors: Yellow, Green, Cyan, Orange, Red, and Purple - Each color captures the authentic glow of classic LED displays Optimized for All iPhones and iPads - Automatically adjusts dot size for perfect viewing on iPad Mini, iPad Air, and iPad Pro - Crisp, clear display in both portrait and landscape orientations Simple Controls - Tap anywhere on the screen to access settings - Clean, intuitive interface that doesn't distract from the clock - Settings panel matches the retro dot matrix aesthetic Perfect for Any Time - Full-screen display with hidden status bar for distraction-free viewing - Ideal as a bedside clock, desk accessory, or ambient display - Low power consumption for extended use Why You'll Love It: The carefully crafted dot matrix rendering creates an authentic retro experience that's both nostalgic and modern. Each glowing dot is perfectly sized and spaced to recreate the classic LED displays you remember, while taking advantage of your iPad's beautiful screen. Transform your iPad into a piece of retro-futuristic art that tells time beautifully. Download Digital Clock - LED Retro today and bring the golden age of digital displays to your space.

Screenshots

Systweak PDF Editor4 screens
Digital Clock4 screens

Verdict

The call

The clearest difference is update cadence: Digital Clock at every 5 days against Systweak PDF Editor's every 7 months. Digital Clock also leads on ratings volume (3 vs 1). Systweak PDF Editor's advantage is iOS requirement (14.0 vs 18.1). On price, rating, review sentiment 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Systweak PDF Editor against 5.0 for Digital Clock. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Systweak PDF Editor ships an update every 7 months, Digital Clock every 5 days. The most recent releases landed on September 8, 2026 and August 23, 2026 respectively.

Scorecard3 real differences · 7 level
Systweak PDF Editor versus Digital Clock: the parameters behind the verdict, then further details
ParameterSystweak PDF EditorDigital Clock
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 7 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better18.1
Further details — not scored
Size70 MB4 MB
Age rating4+4+
DeveloperShrishail RanaSeungJun Lee

Customer experience

Systweak PDF Editor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Digital Clock

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Systweak PDF Editor

No in-app purchases

None

Digital Clock

No in-app purchases

Questions

Is Systweak PDF Editor free?
Systweak PDF Editor is free to download, with no in-app purchases.
Is Digital Clock free?
Digital Clock is free to download, with no in-app purchases.
Which has better reviews, Systweak PDF Editor or Digital Clock?
Systweak PDF Editor and Digital Clock are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Systweak PDF Editor or Digital Clock have ads?
Neither Systweak PDF Editor nor Digital Clock shows ads.
Which is updated more often, Systweak PDF Editor or Digital Clock?
Systweak PDF Editor ships an update every 7 months, and Digital Clock every 5 days. Most recently, Systweak PDF Editor was updated on September 8, 2026 and Digital Clock on August 23, 2026.

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