Comparison

Mass vs K

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

Head to head
About

Mass

This utility app calculates the mass of metal and plastic preforms directly on the field. It supports various preform and material types, offering metric and imperial measurement modes for convenience.

Highlights
  • 13 preform types
  • 9 material types with alloys
  • Graphical preform representation
  • Metric and imperial modes
  • Help section
  • Easy to use
Features
Read full description

Mass-Finder is designed to calculate the mass of metal and plastic preforms while on the field. Features: - 13 different preform types - 9 material types, each with it’s own alloy types - Graphical representation for each preform type - Help section - Metric and imperial measurement modes - Easy to use - Free updates If you have any suggestions or find any bugs, please send us an email at contact@solazdazen.com

About

K

This utility app calculates bend allowances and deductions for sheet metal fabrication. It helps engineers and fabricators determine precise K-Factor values, improving accuracy and reducing material waste in bending processes.

Highlights
  • K-Factor calculation
  • Bend allowance and deduction
  • Material and thickness support
  • Instant results
  • User-friendly interface
Features
Read full description

K-Factor Bend Allowance Calculator is a powerful and easy-to-use tool designed for engineers, fabricators, sheet metal workers, and designers to quickly calculate accurate bend allowances and bend deductions. Whether you are working with sheet metal, steel, or other materials, this app helps you determine the correct K-Factor for precise bending results, reducing errors and saving time in production. Key Features: =========== • K-Factor Calculator – Easily calculate K-Factor values for accurate bend allowance. • Bend Allowance & Deduction – Get precise values for sheet metal bending. • Material & Thickness Support – Works with different sheet thicknesses and bend radii. • Instant Results – Enter your parameters and get accurate results instantly. • Essential for Fabricators – Ideal for CNC programmers, mechanical engineers, and manufacturing professionals. • User-Friendly Design – Simple, clean, and fast interface for quick calculations. Why Use This App? ============== Accurate K-Factor calculation is essential for ensuring correct flat patterns and minimizing material wastage. With this app, you can improve your sheet metal bending accuracy, optimize design, and save valuable time on the shop floor.

Screenshots

Mass3 screens
K3 screens

Verdict

The call

The clearest difference is price: Mass at Free against K's $2.99. Mass also leads on update cadence (every 3 weeks vs every 43 months) and iOS requirement (8.0 vs 15.0). On review sentiment, ads, 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

Mass is free to download; K costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mass ships an update every 3 weeks, K every 43 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Mass versus K: the parameters behind the verdict, then further details
ParameterMassK
PriceFree — better$2.99
Rating4.5 (2 ratings) — better—
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 43 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size7 MB2 MB
Age rating4+4+
DeveloperSolaz Dazen srlBhavinkumar Satashiya

Customer experience

Mass

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

K

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

In-app purchases

None

Mass

No in-app purchases

None

K

No in-app purchases

Questions

Is Mass free?
Mass is free to download, with no in-app purchases.
Is K free?
K costs $2.99, with no in-app purchases.
Do Mass or K have ads?
Neither Mass nor K shows ads.
Which is updated more often, Mass or K?
Mass ships an update every 3 weeks, and K every 43 months. Most recently, Mass was updated on October 23, 2026 and K on October 30, 2026.

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