Comparison

Paper Schmidt vs Roll Length Calc

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

Head to head
About

Paper Schmidt

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The PS App enables You to: - View and analyze instantly the roll profile data from Paper Schmidt PS8000 rebound hammer - Scan QR and barcodes or rolls - Verify the Paper Schmidt PS8000 hammer on a reference Anvil - Analyze the measurement statistics - View the hammer statistics - Add metadata such as images and voice notes into the measurement logbook - Export data to CSV files - Receive notifications about the new firmware availability

About

Roll Length Calc

Calculate the length and area of rolled materials with precision. Save, search, and manage your calculations with detailed reports and notes. Supports multiple units and offers a user-friendly interface for professionals.

Highlights
  • Calculate roll length from diameters and thickness
  • Compute material surface area
  • Save calculations with custom titles and types
  • Add notes to reports
  • Search through saved reports
  • Calculate roll diameter from length
  • Support for multiple units of measurement
Read full description

Roll Length Calc - Accurate Material Calculations Professional app for calculating rolled material length, area and creating detailed reports. MAIN FEATURES: Calculate roll length based on diameters and material thickness Compute material surface area Save calculations with custom titles and material types Add notes to each report Complete list of all saved calculations Search through reports and materials New Feature: Now you can calculate the roll diameter based on the length and material parameters! Just switch modes and get the result instantly. Thanks to your feedback, we keep improving the app. If you find it useful, please leave a review on the App Store โ€“ it helps us a lot! Support for multiple units of measurement (mm, cm, m, inches) CREATE COMPREHENSIVE REPORTS: Specify material type (film, fabric, paper, metal) Add detailed notes and comments Maintain complete calculation history Organize and manage your data efficiently PERFECT FOR: Manufacturing companies and factories Construction and engineering firms Logistics and supply chain services Warehouse and inventory management Engineers and technicians Technical students and educators CALCULATION CAPABILITIES: Roll length of various materials Surface area calculations Winding density coefficient Precise mathematical formulas TECHNICAL SPECIFICATIONS: Simple and intuitive user interface Fast and accurate computations Secure data storage and backup Support for metric and imperial systems Optimize your production processes with our advanced calculator. Calculate roll length, generate comprehensive reports, and manage your materials efficiently. Essential tool for professionals working with rolled materials in manufacturing, construction, and logistics industries.

Screenshots

Paper Schmidt3 screens
Roll Length Calc4 screens

Verdict

The call

The clearest difference is price: Paper Schmidt at Free against Roll Length Calc's $0.99. Roll Length Calc's advantage is ads (none vs shown) and update cadence (every 2 months vs every 12 months). On in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Paper Schmidt is free to download; Roll Length Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Paper Schmidt ships an update every 12 months, Roll Length Calc every 2 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard3 real differences ยท 5 level
Paper Schmidt versus Roll Length Calc: the parameters behind the verdict, then further details
ParameterPaper SchmidtRoll Length Calc
PriceFree โ€” better$0.99
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 12 monthsEvery 2 months โ€” better
AdsYesNo โ€” better
In-app purchasesNoNo
Monetizationโ€”Paid
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS15.0 โ€” better15.6
Further details โ€” not scored
Size371 MB2 MB
Age rating4+17+
DeveloperScreening Eagle TechnologiesKonstantin Khoroshun

In-app purchases

None

Paper Schmidt

No in-app purchases

None

Roll Length Calc

No in-app purchases

Questions

Is Paper Schmidt free?
Paper Schmidt is free to download, with no in-app purchases.
Is Roll Length Calc free?
Roll Length Calc costs $0.99, with no in-app purchases.
Do Paper Schmidt or Roll Length Calc have ads?
Paper Schmidt shows ads; Roll Length Calc does not.
Which is updated more often, Paper Schmidt or Roll Length Calc?
Paper Schmidt ships an update every 12 months, and Roll Length Calc every 2 months. Most recently, Paper Schmidt was updated on November 7, 2026 and Roll Length Calc on October 30, 2026.

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