Comparison

Metal World vs Thread Calculator

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

Head to head
About

Metal World

Quickly calculate the weight of various metal and plastic materials in numerous formats. Supports nearly 300 materials and 22 shapes, providing results per unit or total weight. Also offers material comparison and specific weight displays.

Highlights
  • Weight calculation for ~300 materials
  • Supports 22 formats (sheets, bars, tubes, etc.)
  • Results per kg/m, m², or item
  • Specific weight display
  • Material comparison with EN/DIN standards
  • Information on special materials
Features
Read full description

*This app lifts almost any weight* BIKAR-METALLE GmbH is one of the world's leading suppliers to trade and industry. For 50 years, our name has stood for quality, expertise, choice, precision and reliability in the field of NF metals and plastics. We supply: Materials: - Aluminium / Aluminum - Copper - Brass - Bronze - Plastics - Special materials Formats available: - Sheets & plates - Bars & tubes - Round blanks & rings - Bushings - Profiles - Pre-cuts - Parts from drawings Why this app: We have created this app to fulfill our customers’ frequent request to be able to calculate the weights of materials quickly and easily. This extends right across our range of products. Easily calculate the weight of almost 300 different materials and elements in 22 currently specified formats. The app can: calculate weights made from almost 300 materials and elements for: Rolled and cast materials: - sheets / plates / cuttings / rings / circular blanks Bars: - round / square / flat / hexagonal / octagonal / double hexagonal Tubes: - round / square / hexagonal – angular and round-hole / bushings / hollow bars Profiles: - angle (L) / T / U / Z / double T Special shapes - Spheres Results: Weights: per kg/m or m² ● per item ● total weight For tubular forms, calculate the missing dimensions For semi-circular bars (sector of a circle), chord / height / diameter Display specific weights: The specific weights are displayed for all materials and elements. Compare materials: In the case of non-ferrous metals, EN standards are observed as well as many comparable standards according to DIN, UNI (Italy), BS (British Standard), AFNOR (France), and from Spain, Sweden and Norway. However, some of these are only similar. Materials for tool-making, mould-making and model-making: You can also find special materials for tool-making, mould-making and model-making, such as FORMODAL®, UNIDAL® or CERTAL®. Miscellaneous: Simply weigh a ball of fresh snow, an oak beam, or a wedding ring made of pure gold. There’s so much that you could weigh. Information: About BIKAR-METALLE GmbH Route planner Feedback and much more. The team at BIKAR-METALLE GmbH hopes you enjoy using the app. BIKAR-METALLE GmbH Industriestr. 3 - 17 57319 Bad Berleburg GERMANY Tel.: +49-2751-9551111 info@bikar.com www.bikar.com

About

Thread Calculator

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

Highlights
  • Thread cutting calculator for multiple units
  • Cold forming calculator
  • Thread repair calculator
  • Tap hole and bolt diameter calculation
  • Saves time compared to tables
Features
Read full description

The app includes: - A calculator for thread cutting for the following units: M, MF, UNC, UNEF, UNF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF - A calculator for cold forming - A calculator for thread repair You want to know which tap hole you should drill for threading or which bolt you should use? With this app, you will find the desired measures in no time: Simply select the desired thread type, nominal size, and pitch and you will get the matching diameter for your project. This saves precious time you would have spent tediously searching for internal and external thread dimensions in tables. As this app is still in its development phase, new features will follow soon, so stay tuned! GSR Gustav Stursberg GmbH is a manufacturer for high-quality thread cutting tools with 130 years of operational experience in the area of threading tool production. The product portfolio includes a wide selection of tools for different areas of application. GSR taps, twist drills, round dies, and tool holders are manufactured to the highest quality standards in our own production facilities. The constant quality control during the production process guarantees a consistent good quality in all national as well as international production facilities. This requires enormous precision, which is reflected by our tools. Precision is in the details. Since 1889.

Screenshots

Metal World4 screens
Thread Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Metal World at 100% against Thread Calculator's 33%. Metal World also leads on rating (4.8 vs 4.3) and ads (none vs shown). On price, ratings volume, 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.

ReceptionRating · Positive reviews · Number of ratings

Metal World holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 5 and 13 respectively. Written reviews point the same way: 100% of Metal World's written reviews are positive against 33% of Thread Calculator's.

UpkeepUpdate frequency

Metal World ships an update every 2 months, Thread Calculator every 18 months. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Metal World versus Thread Calculator: the parameters behind the verdict, then further details
ParameterMetal WorldThread Calculator
PriceFreeFree
Rating4.8 (5 ratings) — better4.3 (13 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings513 — better
Update frequencyEvery 2 months — betterEvery 18 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS5.1.1 — better15.0
Further details — not scored
Size37 MB25 MB
Age rating4+4+
DeveloperBIKAR-METALLE GmbHGSR Gustav Stursberg GmbH

Customer experience

Metal World

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Thread Calculator

All ratings13 ratings
Positive84.6%
Neutral7.7%
Negative7.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Metal World

No in-app purchases

None

Thread Calculator

No in-app purchases

Questions

Is Metal World free?
Metal World is free to download, with no in-app purchases.
Is Thread Calculator free?
Thread Calculator is free to download, with no in-app purchases.
Which has better reviews, Metal World or Thread Calculator?
Metal World is rated higher. Metal World averages 4.8 out of 5 from 5 ratings, while Thread Calculator averages 4.3 from 13 ratings.
Do Metal World or Thread Calculator have ads?
Thread Calculator shows ads; Metal World does not.
Which is updated more often, Metal World or Thread Calculator?
Metal World ships an update every 2 months, and Thread Calculator every 18 months. Most recently, Metal World was updated on October 20, 2026 and Thread Calculator on October 13, 2026.

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