Comparison

Smallpdf vs Construction Calculator Master

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

Head to head
About

Smallpdf

This app offers a comprehensive suite of tools to manage PDF documents. Easily convert, edit, compress, sign, merge, and scan PDFs using your mobile device. It also features OCR technology to convert scanned documents into editable text.

Highlights
  • Convert PDFs to Word, Excel, PPT, JPG, PNG
  • Edit PDFs with text, images, and annotations
  • Compress PDFs to reduce file size
  • Sign PDFs electronically
  • Merge multiple PDF files
  • Scan documents to PDF with OCR
  • Fill out PDF forms
Features
Read full description

Smallpdf: All-In-One PDF Editor and Document Organizer Smallpdf is your go-to PDF tool, designed to simplify your document management. Whether you need to convert, compress, edit, sign, merge, or scan PDFs, our app makes it effortless. Trusted by 2.4 billion people since 2013, Smallpdf offers a seamless PDF experience right at your fingertips. Key Features: Convert PDFs Across All Document Formats Easily: PDF to Word doc PDF to Excel PDF to PPT PDF to JPG PDF to PNG Images to PDF and vice versa! Edit PDFs: Add text, images, and shapes directly in your PDF files Add annotations and highlights easily Rotate, delete, and rearrange PDF pages PDF editing tools Compress PDFs: Reduce the file size of your PDFs without compromising quality Optimize PDFs for sharing and saving storage space Shrink PDF files Compress PDF documents Sign PDFs: Add an e-signature to your documents Digitally sign PDFs securely Electronic signatures for PDFs Merge PDFs: Combine multiple PDF files into one Merge PDF documents Scan Documents to PDF: Use your camera to scan documents, receipts, notes, and more into PDFs Enhance scans with automatic cropping and optimization Convert scanned images to selectable text with OCR Scan image to PDF Scan doc to PDF Scan jpg to PDF Scan receipts to PDF OCR Technology: Convert scanned documents into selectable text with our advanced OCR feature Support for multiple languages OCR PDF converter Why Choose Smallpdf? User-Friendly Interface: Intuitive and easy to navigate, making PDF tasks simpler than ever. Cloud Integration: Access and save your files directly from your local device storage. Privacy and data protection: All uploaded files deleted 1 hour after processing (unless saved locally or to the cloud) Cross-Platform Availability: All major operating systems. Work on your PDFs anytime, anywhere. Fast and Reliable: Quick processing times ensure you can get your work done efficiently. High Security: We prioritize your privacy and data security, complying with GDPR standards. Additional Features: PDF Reader: View and read PDF documents with ease. PDF Scanner: Quickly scan and digitize your paper documents. PDF Filler: Fill out PDF forms and documents electronically. PDF Maker: Create PDFs from various file formats effortlessly. PDF Annotator: Highlight, underline, and strikethrough text in your PDFs. Download Smallpdf Now! Smallpdf is free within a daily task limit. If you would like to try out Smallpdf Pro for unlimited conversions across ALL tools, there’s a free 7-day trial available. The Smallpdf Mobile App is the all-in-one solution for all your document management needs. Simplify your tax return or scan in receipts easily using your camera to save, edit, and manage thousands of documents in all formats. Save backups on the drive or share directly to email to manage your documents on the go! Join 2.4B+ satisfied users and simplify your PDF tasks today. Download Smallpdf and enjoy a free trial of all premium features. Privacy policy: https://smallpdf.com/privacy Terms of use: https://smallpdf.com/support We love feedback, so feel free to send yours to support@smallpdf.com.

About

Construction Calculator Master

This app simplifies construction planning and estimation for contractors and DIYers. It offers tools for calculating volume, area, roofing, masonry, stairs, and drywall, ensuring accurate material estimates and project planning.

Highlights
  • Volume and area calculations
  • Roofing and hip roof calculations
  • Brick and block wall calculations
  • Stairs design and calculations
  • Drywall estimation
  • Rafter and polygon calculations
Features
Read full description

Take your construction projects to the next level with Simple Construction Calculator, the ultimate civil construction calculator for contractors, builders, and DIY enthusiasts. From volume calculation and area calculator tasks to advanced roof framing and stairs calculator functions, this building calculator app simplifies every aspect of planning, designing, and estimating. Quickly calculate in feet inch, measure length, width, height, weight, angle, fraction, rise, run, base, and pitch for any construction project with ease. Key Features: - Roofing Calculator, Hip Roof Calculator, Roof Covering – Measure roofing materials and costs precisely. - Brick Calculator & Block Wall Calculator – Plan masonry work efficiently with accurate quantities. - Stairs Calculator, Stair Stringer Calculator, Stair Riser Calculator, Stair Step Calculator, Stair Formula, Stair Angle Calculator – Design perfect staircases with precise rise and run calculations. - Drywall Installation & Drywall Contractor Tools – Quickly measure panels and estimate materials and costs. - Civil Construction Calculator & RCC Calculator – Perform professional-grade structural calculations. - Jack Rafter Calculator & Rafter Calculation – Plan complex roof geometries with accuracy. - Polygon Calculator – Determine areas for irregular shapes, flooring, and custom designs. Simple Construction Calculator is perfect for: ⁃ House building calculator needs ⁃ Construction cost estimator and material calculator tasks ⁃ Roofing cost calculator and roof framing projects ⁃ Brick & block wall calculations ⁃ Stair rise & run, stair step, stair riser, stair formula, and stair angle calculations Whether you’re planning drywall installation, designing a hip roof, calculating roof framing, or performing volume, area, and length calculations, this app ensures accurate results every time. From design build projects to everyday construction, it’s a professional-grade builder master tool for anyone needing precise material calculations. Overall, Simple Construction Calculator is your all-in-one solution for civil construction calculations. From easy calculations and material planning to cost estimation and contractor estimates, it includes powerful tools like Material Calculator, Construction Material Calculator, Construction Estimator, Construction Cost Estimator, Building Cost Calculator, Building Cost Estimator, and Contractors Estimate - making every building project faster, easier, and more accurate. Download Simple Construction Calculator now and take the guesswork out of your construction projects!

Screenshots

Smallpdf4 screens
Construction Calculator Master4 screens

Verdict

The call

The clearest difference is rating: Smallpdf at 4.8 against Construction Calculator Master's 4.0. Smallpdf also leads on ratings volume (6.9K vs 1). Construction Calculator Master's advantage is in-app purchases (none vs 10). On price, update cadence, ads 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. Smallpdf sells 7 in-app purchases, starting at $7.99 per month. Construction Calculator Master asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Smallpdf holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Smallpdf has 6.9K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Smallpdf versus Construction Calculator Master: the parameters behind the verdict, then further details
ParameterSmallpdfConstruction Calculator Master
PriceFreeFree
Rating4.8 (6.9K ratings) — better4.0 (1 ratings)
Positive reviews67.6% of reviews—
Number of ratings6.9K — better1
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size112 MB10 MB
Age rating4+4+
DeveloperSmallpdfVaghani Keyur

Bugs and requests

Smallpdf

Reported bugs

5 issues
  • Files not saving properly
  • Conversion issues with larger documents
  • Unexpected crashes and freezes
  • Compatibility problems with older devices
  • Incorrect file content after compression

Requested features

5 requests
  • Add more color options for annotations
  • Improve search functionality for saved documents
  • Enhance iPad compatibility
  • Allow inserting images into PDFs
  • Provide better file management and organization

Construction Calculator Master

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Smallpdf

Subscriptions7
  • Monthly Plan7 Days trial2 variants$7.991 Month
  • Monthly Plan7 Days trial2 variants$11.991 Month
  • Monthly Plan7 Days trial$14.991 Month
Show 4 more
  • Yearly Plan7 Days trial2 variants$49.991 Year
  • Yearly Plan7 Days trial$59.991 Year
  • Yearly Plan7 Days trial$107.991 Year
  • Yearly Plan7 Days trial$119.991 Year
None

Construction Calculator Master

No in-app purchases

Questions

Is Smallpdf free?
Smallpdf is free to download, with in-app purchases available.
Is Construction Calculator Master free?
Construction Calculator Master is free to download, with no in-app purchases.
Which has better reviews, Smallpdf or Construction Calculator Master?
Smallpdf is rated higher. Smallpdf averages 4.8 out of 5 from 6.9K ratings, while Construction Calculator Master averages 4.0 from 1 ratings.
Do Smallpdf or Construction Calculator Master have ads?
Neither Smallpdf nor Construction Calculator Master shows ads.
Which is updated more often, Smallpdf or Construction Calculator Master?
Smallpdf ships an update every 2 weeks, and Construction Calculator Master every 2 weeks. Most recently, Smallpdf was updated on November 8, 2026 and Construction Calculator Master on October 30, 2026.

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