Comparison

Atom HMI vs PDF Docs PDF Scanner

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

Head to head
About

Atom HMI

Features
Read full description

Remote Monitoring and Control - This works in parallel with hardware installed by Atom Automation, allowing fast and easy control of systems installed and monitored by atom.ca

About

PDF Docs PDF Scanner

Easily scan documents and save them as high-quality PDFs or JPEGs. Features include batch scanning, cloud integration, and secure sharing. OCR technology digitizes text for easy access and sharing.

Highlights
  • High-quality document scanning
  • Batch scanning for multiple pages
  • Cloud integration for easy access
  • Share and export to various formats
  • OCR technology for text digitization
  • Secure and private with passcode protection
Features
Read full description

PDF scanner app is the ultimate tool for anyone who needs to scan documents and save them as PDF files. It is designed with advanced image processing technology that ensures your scans are always clear, sharp, and professional-looking. Here are some of the features that make this PDF app stand out from the rest: 1) Easy to use: It is incredibly easy to use, even if you're not tech-savvy. With just a few taps, you can quickly scan your document and save it as a PDF file. 2) High-quality scans: The app uses advanced image processing technology to ensure your scans are always high-quality, with clear text and sharp images. 3) Adjustable settings: You can easily adjust settings such as resolution, color mode, and file size to get the perfect scan every time. 4) Batch scanning: Need to scan multiple pages? No problem! DocuScan allows you to scan multiple pages and save them as a single PDF file. 5) Cloud integration: You can save your scans to the cloud for easy access from any device. 6) Share and export: DocuScan allows you to easily share your scanned documents via email, messaging apps, or social media. You can also export your scans to other file formats such as JPG or PNG. 7) Secure and private: It uses encryption to ensure your scanned documents are safe and secure. You can also set a passcode to protect your scans from prying eyes. Wherever you are, easily scan photos, texts, and documents into high-quality PDF and JPEG files with this app. Powered by OCR technology, the scanner allows you to easily digitize books, business cards, and receipts and access them. You can quickly share your scanned documents effortlessly. DocuScan is the perfect solution for all your scanning needs. Privacy Policy: https://hazelmobile.com/privacy-policy-ios/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ We’d love to hear from you! Please help us make our DocuScan: PDF Scanner & Maker App even better.

Screenshots

Atom HMI2 screens
PDF Docs PDF Scanner4 screens

Verdict

The call

The clearest difference is in-app purchases: Atom HMI at none against PDF Docs PDF Scanner's 3. Atom HMI also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). PDF Docs PDF Scanner's advantage is update cadence (every 3 weeks vs every 25 months). On price 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. PDF Docs PDF Scanner sells 3 in-app purchases, starting at $5.99 per 7 days. Atom HMI asks for nothing beyond the download.

UpkeepUpdate frequency

Atom HMI ships an update every 25 months, PDF Docs PDF Scanner every 3 weeks. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard4 real differences · 6 level
Atom HMI versus PDF Docs PDF Scanner: the parameters behind the verdict, then further details
ParameterAtom HMIPDF Docs PDF Scanner
PriceFreeFree
Rating—4.6 (91 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—91 — better
Update frequencyEvery 25 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size7 MB34 MB
Age rating4+4+
DeveloperAdam MandelHazel Mobile

In-app purchases

None

Atom HMI

No in-app purchases

3 purchases

PDF Docs PDF Scanner

Subscriptions2
  • Remove Ads & File Share - Week3 Days trial$5.997 Days
  • Remove Ads & File Share -Month3 Days trial$7.991 Month
One-time1
  • Remove Ads & Share Files$19.99

Questions

Is Atom HMI free?
Atom HMI is free to download, with no in-app purchases.
Is PDF Docs PDF Scanner free?
PDF Docs PDF Scanner is free to download, with in-app purchases available.
Do Atom HMI or PDF Docs PDF Scanner have ads?
PDF Docs PDF Scanner shows ads; Atom HMI does not.
Which is updated more often, Atom HMI or PDF Docs PDF Scanner?
Atom HMI ships an update every 25 months, and PDF Docs PDF Scanner every 3 weeks. Most recently, Atom HMI was updated on November 3, 2026 and PDF Docs PDF Scanner on November 12, 2026.

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