Comparison

Lumin vs FieldOS

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

Head to head
About

Lumin

Edit, share, and collaborate on PDF documents in the cloud. This app offers a suite of tools for annotating, organizing, and signing PDFs, with seamless integration for cloud storage and real-time collaboration.

Highlights
  • Seamless document management
  • Cloud integration and auto-save
  • Versatile editing and annotation tools
  • Document organization and conversion
  • Pre-designed templates
  • Real-time collaboration
  • eSignatures and form filling
  • Scanning to PDF
Features
Read full description

Lumin for iOS allows you to edit and sync to your Google documents in seconds. Collaborate with colleagues in real-time with a diverse set of editing tools. Lumin auto-saves your changes and syncs them to all your devices. Connect your Google account and stay on top of your documents. You can effortlessly view and share files with anybody via email or shareable links. TRUSTED BY MILLIONS Join over 100 million Lumin users worldwide who use our app to edit, share, and collaborate in the cloud. From note-taking and project management to client onboarding and legal document review, Lumin empowers you across industries. KEY FEATURES - Seamless document management: Import from your favorite storage (Dropbox, Google Drive, OneDrive), edit, and share PDFs effortlessly. - Cloud integration: Automatically save changes and sync across devices. - Versatile editing tools: Highlight, annotate, draw on PDFs and more. - Document organization: Organize, extract pages, merge files, convert to/from PDF,... - Pre-designed templates: Choose from various templates for various purposes and industries, such as real estate, education, job application, etc. - Collaboration: Share files and receive real-time notifications. - eSignatures: Sign and fill out forms with ease. - Scanning: Convert paper documents into portable PDFs. LUMIN IN THE REVIEWS “I use Lumin to mark up PDF drawings and send them to my subcontractors. In my role, time is of the essence. Lumin provides me with a tool to make collaboration and feedback easy.” – Construction site manager, US “We have been using Lumin for a little over two years, and it's been amazing. Using Lumin on-the-go and in-office allows us better turnaround time for our patients' care.” – Director of Services and Operations, US “It s very useful and handful for studying and I feel like they make good improvements with each upgrade. I use it for studying, it's cool that I can connect my university Google Drive to the Lumin account and I can edit, draw, write, highlight and add comments and they always get saved.” – Individual user “Too loud. You can open and edit texts from any device, everything is saved automatically, quickly. Access is very fast. The options for editing documents are diverse.” – Individual user Terms & conditions: https://www.luminpdf.com/terms-of-use/

About

FieldOS

Features
Read full description

Is the go-to solution for supercharging productivity while on the move. With FieldOS, your smartphone becomes a command center for managing request, tasks, assets, and locations in real-time. No more juggling paperwork or chasing down information. FieldOS Mobile App keeps you connected to your teams, vendors and your data, allowing you to collaborate seamlessly and make informed decisions on the fly. It's like having your office in your pocket, making your workday smoother and more efficient. Say goodbye to complexity and hello to streamlined field operations and interaction, all at your fingertips. FieldOS is: - A modern, no code SaaS solution that allows you to create, distribute and monitor request and tasks, assig them to your suppliers, employees or contractors in the field. - The embedded AI engine and ML algorithms can automatically schedule and dispatch workers based on the type of work, their availability, their competences and the physical locations of customers. FieldOS helps you increase the efficiency of your teams and contractors by recommending or automatically dispatching the field personnel. - Easily configure your work orders aspect and functionality based on your specific business type and user roles. Show or hide sections and inputs, customize labels, emails and dashboards. - Maintain a digital evidence of any kind of resource used within any work order. Work duration, parts used, distance travelled and any other information can be recorded. - Customize how your generated documents look and the information they contain via the documents drag and drop customization module. - Automatically generate your customer offers, purchase orders, invoices, documents and others. - Shorten your new employee on boarding process and work orders conformity by creating advanced checklists and audit lists. Smarthuts™ offers a wide variety of checklist options, from introducing a meter index to taking a photo, scanning a QR code or NFC tag. - Connect you field equipment the the FieldOS IoT platform to get real time information about their status, meter readings and many more. - Get real time, unbiased feedback from the customers via the customer engagement engine. - Use the state of the art customizable dashboards and reports. Get real time alerts on statuses, delays performance decrease and any other information you need.

Screenshots

Lumin4 screens
FieldOS4 screens

Verdict

The call

The clearest difference is ads: FieldOS at none against Lumin's shown. FieldOS also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Lumin ships an update every 8 days, FieldOS fortnightly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
Lumin versus FieldOS: the parameters behind the verdict, then further details
ParameterLuminFieldOS
PriceFreeFree
Rating4.5 (940 ratings) — better—
Positive reviews32.1% of reviews—
Number of ratings940 — better—
Update frequencyEvery 8 days — betterFortnightly
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size304 MB55 MB
Age rating4+4+
DeveloperNitrolabs LimitedSmarthuts SRL

Bugs and requests

Lumin

Reported bugs

4 issues
  • Lost work and unsaved changes
  • Inability to open/access files
  • Frequent login issues
  • Compatibility problems on mobile

Requested features

4 requests
  • Offline mode support
  • Split-screen functionality
  • Improved highlight/annotation tools
  • Better Google Drive integration

FieldOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Lumin

No in-app purchases

None

FieldOS

No in-app purchases

Questions

Is Lumin free?
Lumin is free to download, with no in-app purchases.
Is FieldOS free?
FieldOS is free to download, with no in-app purchases.
Do Lumin or FieldOS have ads?
Lumin shows ads; FieldOS does not.
Which is updated more often, Lumin or FieldOS?
Lumin ships an update every 8 days, and FieldOS fortnightly. Most recently, Lumin was updated on November 6, 2026 and FieldOS on November 8, 2026.

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