WS Drill Bits vs Math Tools B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WS Drill Bits
This application serves machinists, designers, and manufacturing personnel with essential drill bit calculations. It features a comprehensive drill size chart with decimal equivalents, a calculator for optimal speeds and feeds across various materials, and a tool for determining drill point depth based on angle.
- Drill size and decimal equivalent chart
- Fast vertical scrolling with color-coded values
- Sliding scale for quick list navigation
- Speeds and feeds calculator for various materials
- Drill point depth calculator
- Supports metric and inch measurements
Read full descriptionHide full description
Workshop (WS) Drill Bits Is a full functioning Drill Bit Calculator simply designed for the Machinists Workshop, Designer's and Manufacturing Personel. Contains the following three functions: 1) A vertical scrolling Drill Size and Decimal Equivalent Chart. *From 0.1mm(0.00394 Inch) to 101.6mm(4.0 Inches) *Offers Fast Vertical Scrolling *Inch Fractions are highlighted in Blue *Metric Numbers are highlighted in Red *Gage/Letter Numbers are also listed *Inch Fractions values are also listed. *A sliding scale allows you to jump to any point on the list fast.(Separately for both mm and inch values) 2) Twist Drill Speeds and Feeds *Calculates recommended Drill Speeds and Feed Rates for various materials: *Option to enter in either Metric or Inch size Drills -Aluminium -Brass -Bronze -Cast Iron -Hastelloy -Inconel -Magnesium -Monel -High Nickel Steel -Free Cutting Steel -Mild Steel -Steel -Tool Steel -Forgings -Alloys -Heat Treated Steels -Stainless Steels -Titanium -Wood and Plastics 3) Drill Point Depth Calculator *Calculates the Drill Point Depth for various Drill Point Angles (60',82',90',118',120',135') *Option to enter in either Metric or Inch size Drills.
Math Tools B
This app helps users understand mathematical concepts and perform various numerical tasks. It offers features like factoring, prime factorization, fraction simplification, and random number generation, all computed locally for speed.
- Factoring
- Prime Factorization
- Greatest Common Divisor
- Decimal to Fraction Conversion
- Fraction Simplification
- Fraction Arithmetic
- Random Number Generation
Read full descriptionHide full description
Understand math and numbers better, whether it be for school or any other purpose. This app can help you with many numerical tasks including: • Factoring • Prime Factorization • Greatest common divisor • Finding prime numbers • Conversion of a decimal to a fraction • Simplification of Fractions • Fraction Arithmetic • Random Number Generation You can expect speed, some of the fastest known algorithms are used in the calculations and all of the operations are computed on your physical device. This takes off the time that would otherwise be used to communicate with servers through the internet. The one exception to this is the nth prime page which contacts a server to be able to quickly give you up to nearly the 10 trillionth prime number in just seconds.
Screenshots
Verdict
The clearest difference is update cadence: Math Tools B at every 10 days against WS Drill Bits's every 16 months. On price, rating, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for WS Drill Bits against 5.0 for Math Tools B. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
WS Drill Bits ships an update every 16 months, Math Tools B every 10 days. The most recent releases landed on June 10, 2026 and June 2, 2026 respectively.
| Parameter | WS Drill Bits | Math Tools B |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 16 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 10.0 |
| Further details — not scored | ||
| Size | 57 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Rein Rapp | Jaron Wakley |
Customer experience
WS Drill Bits
Math Tools B
In-app purchases
WS Drill Bits
No in-app purchases
Math Tools B
No in-app purchases
Questions
Is WS Drill Bits free?
Is Math Tools B free?
Which has better reviews, WS Drill Bits or Math Tools B?
Do WS Drill Bits or Math Tools B have ads?
Which is updated more often, WS Drill Bits or Math Tools B?
Other comparisons















