Comparison

PDF Document Scanner vs HMI Editor

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

Head to head
About

PDF Document Scanner

Transform your device into a portable scanner to digitize multi-page documents, receipts, and more. Automatically detects borders, corrects distortion, and enhances image quality for perfect scans. Share your digitized documents easily via email or print.

Highlights
  • Digitize multi-page documents
  • Scan various items like receipts and business cards
  • Automatic border detection and cropping
  • Image quality enhancement
  • Import from gallery or scan directly
  • Share via email or print
Features
Read full description

PDF Document Scanner-Live: Your Instant Portable Scanner PDF Document Scanner-Live transforms your iPhone into a powerful, live scanner, letting you instantly digitize multi-page documents and much more. When a traditional scanner isn't nearby, this is your complete solution. Scan Anything, Instantly Versatile Scanning: Capture documents, whiteboards, receipts, business cards, posters, coupons, books, and anything else you need to digitize. Multi-Page Support: Scan up to 10 pages into a single document and create an unlimited number of documents. Perfect Scans, Every Time Smart Recognition: Automatically detects document borders, crops unnecessary parts, and corrects distortion. Enhance Quality: Adjust brightness for low-light scans and save copies in color or grayscale. Flexible Input: Scan directly with your camera or import existing photos from your gallery. Share n Manage with Ease Effortless Sharing: Share your scans via email, or print directly using AirPrint. PDF Document Scanner-Live is the essential tool for students, professionals, and anyone needing a fast, reliable, and versatile mobile scanning solution. Download today and go paperless!

About

HMI Editor

Create custom interfaces for real-time industrial process monitoring and control on iOS devices. Design dynamic dashboards with various elements and connect them to PLC systems. Develop and test projects freely, with payment only for deployment.

Highlights
  • Customizable page layouts
  • Real-time monitoring and control
  • Support for major PLC brands
  • On-screen project editing
  • Export/import asset files
  • Cloud storage and deployment
Features
Read full description

HMI Editor is a *native* iOS application for creating Human Machine Interfaces for real-time monitoring and control of industrial PLC based systems and processes. Data is presented in highly customizable page layouts much like a presentations app. Who's this for. The app is aimed at automation engineers or industrial machine manufacturers on many sectors including but not limited to building automation, industrial processing, power plants, water plants, industrial equipment, transportation and so on, who want to provide instant, reliable access to real-time data right from iOS devices. What you'll get for the price of the app. HMI Editor allows you to create efficient, advanced, highly responsive "Human Machine Interfaces" right on your iPad screen with unprecedented ease of use and fun. The HMI Editor app is fully native and supports all major Programmable Logic Controller (PLC) brands. For the price of the app (FREE) you can *fully* develop and test projects of any complexity. No restrictions on number of pages, tags or PLCs are applied at this stage. You only pay for project activations when you are ready to deploy to end users. HMI Editor essential Features. - Very fast, launches and connects immediately regardless of project size. - All data types including Strings, Arrays and Dictionaries fully supported. - HMI Projects are edited on-screen as you run and monitor your process. - You can export and edit your project files as text on your PC or Mac. - Export/import asset files such as images, pdfs or audio files from HMI Editor to your PC or Mac. - Optional project storage in the cloud and easy deployment to end users devices. - Native PLC communication protocols. Connections are performed with no intermediate servers or boxes. - Major PLC brands supported, including: Allen Bradley, Mitsubishi, Omron, Opto 22, Schneider Electric, Siemens, Wago. - TCP/IP based security. Getting Started: creating a HMI Editor project. Projects are created like a mix of PowerPoint and Excel. The concept is quite simple. You lay out elements such as Sliders, Switches, Buttons, Images, Text Fields, Knobs, Trends, Gauges, Bar Indicators, Web browser, Array pickers, even Gesture Recognizers and much more onto pages. You connect on-screen objects with iPad sensors and PLC tags through simple links or powerful expressions. That's it !!. The result is a stunning, dynamic, real-time presentation of your PLC controlled process as you'd never imagined. Examples Ready for You. Explore the examples and take the liberty to make changes on them. Create your own test projects from scratch or based on the examples. HMI Editor will comprehensively tell you what inconsistencies or problems there may be in your project as you build them. New examples are being added on a regular basis or by user request. What's Next. There’s a lot more that we haven’t mentioned here, such as the page navigation interface, the embedded file server, the model browser, the model seeker, the automatic expression completer, the inspector viewer, alarm notifications, iPad sensors, barcode scanner, user access levels, password on launch, PLC validation codes, individual tag diagnostics, background processing, automatic network switching, and much much more. You surely will identify some of these features by just exploring the app, but the single source where everything is covered is the HMI Editor Reference Manual. Feel free to download it from our site and look at the full possibilities, you’ll love the product. Technical Support. We provide a free online support service based on public forums on our website: http://www.sweetwilliamsl.com/support/forums Or through direct email: support@ritecontrol.com. We also hold a public YouTube​ channel at: http://www.youtube.com/hmipad. Feel free to direct your questions, suggestions or feedback to any of the above. We'll be happy to hear from you.

Screenshots

PDF Document Scanner4 screens
HMI Editor4 screens

Verdict

The call

The clearest difference is review sentiment: HMI Editor at 75% against PDF Document Scanner's 0%. HMI Editor also leads on ads (none vs shown) and update cadence (every 2 months vs every 112 months). PDF Document Scanner's advantage is in-app purchases (none vs 3). On price, device support and iOS requirement 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. HMI Editor sells 3 one-off in-app purchases. PDF Document Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Document Scanner ships an update every 112 months, HMI Editor every 2 months. The most recent releases landed on June 4, 2026 and September 14, 2026 respectively.

Scorecard5 real differences · 5 level
PDF Document Scanner versus HMI Editor: the parameters behind the verdict, then further details
ParameterPDF Document ScannerHMI Editor
PriceFreeFree
Rating—4.7 (10 ratings) — better
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings—10 — better
Update frequencyEvery 112 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.615.0 — better
Further details — not scored
Size19 MB23 MB
Age rating4+4+
DeveloperRamalingam SivaramakrishnanGreg Maendel

Customer experience

PDF Document Scanner

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

HMI Editor

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

PDF Document Scanner

No in-app purchases

3 purchases

HMI Editor

One-time3
  • Activation for One Use$199.99
  • Activation for Five Uses$599.99
  • Activation for Ten Uses$999.99

Questions

Is PDF Document Scanner free?
PDF Document Scanner is free to download, with no in-app purchases.
Is HMI Editor free?
HMI Editor is free to download, with in-app purchases available.
Do PDF Document Scanner or HMI Editor have ads?
PDF Document Scanner shows ads; HMI Editor does not.
Which is updated more often, PDF Document Scanner or HMI Editor?
PDF Document Scanner ships an update every 112 months, and HMI Editor every 2 months. Most recently, PDF Document Scanner was updated on June 4, 2026 and HMI Editor on September 14, 2026.

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