AWS D1.1 Practices vs WS Drill Bits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AWS D1.1 Practices
Practice for the AWS D1.1 CWI examination with this mobile app. The free version offers a glimpse into the app's functionality with practice questions and exams. Study anytime, anywhere to prepare for your certification.
- AWS D1.1 exam practice
- CWI certification preparation
- Mobile study tool
- Practice questions
- Exam simulations
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This is a app that help people to practice to be familiar with the AWS D1.1 prior to taking real CWI Examination. This Free version has 10 practices and 20 exams questions to show you the general view of the app. This is a mobile app so that you can practice anytime, anywhere.
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
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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.
Screenshots
Verdict
The clearest difference is update cadence: AWS D1.1 Practices at every 2 months 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 AWS D1.1 Practices against 5.0 for WS Drill Bits. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
AWS D1.1 Practices ships an update every 2 months, WS Drill Bits every 16 months. The most recent releases landed on September 7, 2026 and June 10, 2026 respectively.
| Parameter | AWS D1.1 Practices | WS Drill Bits |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 9.0 |
| Further details — not scored | ||
| Size | 16 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Nguyen Hieu | Rein Rapp |
Customer experience
AWS D1.1 Practices
WS Drill Bits
In-app purchases
AWS D1.1 Practices
No in-app purchases
WS Drill Bits
No in-app purchases
Questions
Is AWS D1.1 Practices free?
Is WS Drill Bits free?
Which has better reviews, AWS D1.1 Practices or WS Drill Bits?
Do AWS D1.1 Practices or WS Drill Bits have ads?
Which is updated more often, AWS D1.1 Practices or WS Drill Bits?
Other comparisons
