Right Angle vs Machining Advisor Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Right Angle
This app provides precise calculations for geometric shapes like triangles, trapezoids, and circles. It offers multiple angle and length formats, a custom keyboard for job site use, and helpful error messages. Designed for professionals in construction, engineering, and trades.
- Calculates triangles, trapezoids, and circles
- Supports decimal degrees, radians, DMS, percent grade, and pitch
- Handles decimal, feet/inches/fractions length formats
- Custom on-screen keyboard with job site symbols
- VoiceOver support for accessibility
- Available in English and Spanish
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Right Angle is a calculator built for carpenters, builders, surveyors, machinists, and engineers — anyone who needs to solve a triangle, a trapezoid, or a circle without reaching for a notepad and the law of sines. Enter any valid combination of sides and angles and Right Angle solves the rest, including perimeter and area. The right triangle calculator is included for free; every other shape unlocks with a one-time Pro purchase or subscription. SHAPES • Right triangle (free) • Oblique triangle • Isosceles, right, and general trapezoids • Full circle — enter radius, diameter, or circumference • Segment of a circle ANGLE FORMATS • Decimal degrees • Radians • Degrees / minutes / seconds (DMS) • Percent grade • Pitch (x-over-12) LENGTH FORMATS • Decimal — the original, unitless entry. Best for metric. • Feet, inches & fractions — type values like 2' 5 1/2". • Inches & fractions — type values like 40 1/2". Pick a fraction precision from 1/2 down to 1/64 inch. Inputs and outputs both use the format you choose, and you can switch any time from Settings. DESIGNED FOR THE JOB SITE • A custom on-screen keyboard puts the symbols you need — feet, inches, fraction slash, degree, prime, double-prime — one tap away. • Helpful errors when an input combination can't be solved, instead of silent failures. • Available in English and Spanish — iOS picks the language to match your device. • Full VoiceOver support across the keyboard, input fields, shape diagrams, and results. Animations respect the Reduce Motion setting. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: http://rightangleapp.com/privacy.html
Machining Advisor Pro
This app provides recommended running parameters for CNC machining, specifically for Helical Solutions and Harvey Tool products. It generates customized speeds and feeds based on your end mill, tool path, material, and machine setup, optimizing metal removal rates and shop productivity.
- CNC speeds and feeds calculator
- Optimized for 30,000+ products
- Supports 300+ material grades
- Intuitive user interface
- Customized setup options
- Quick search functionality
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Machining Advisor Pro quickly, seamlessly, and accurately provides recommended running parameters for CNC machining with your Helical Solutions and Harvey Tool products. Generate specialized speeds and feeds by pairing your end mill with your exact tool path, material, and machine setup. OPTIMIZED FOR 30,000+ PRODUCTS Increase metal removal rates and shop productivity with customized running parameters specifically designed for Helical Solutions and Harvey Tool products. 300+ MATERIAL GRADES Take into account the specific material grade and condition of your workpiece. INTUITIVE USER INTERFACE Save time by quickly determining your end mill’s optimal running parameters. CUSTOMIZED SETUP OPTIONS Enter your machine and setup details to generate personalized Speeds & Feeds. QUICK SEARCH FUNCTIONALITY Narrow down options quickly with a convenient Type Ahead feature and Auto-Tool selection.
Screenshots
Verdict
Right Angle and Machining Advisor Pro both sit at 4.0 stars, but that hides the real split: 73% of Right Angle's written reviews are positive against 17% of Machining Advisor Pro's. Right Angle also leads on ads (none vs shown) and update cadence (every 11 days vs every 6 weeks). Machining Advisor Pro's advantage is in-app purchases (none vs 9) and ratings volume (164 vs 31). On price, rating 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
Both are free to download. Right Angle sells 9 in-app purchases, starting at $2.99 per month. Machining Advisor Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.0 for Right Angle against 4.0 for Machining Advisor Pro. That said, the two scores are not equally well evidenced: Machining Advisor Pro has 164 ratings behind it against 31, so its average is the more settled of the two. Written reviews are what separate them: 73% of Right Angle's written reviews are positive against 17% of Machining Advisor Pro's.
Right Angle ships an update every 11 days, Machining Advisor Pro every 6 weeks. The most recent releases landed on November 10, 2026 and November 2, 2026 respectively.
| Parameter | Right Angle | Machining Advisor Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (31 ratings) — better | 4.0 (164 ratings) |
| Positive reviews | 73.3% of reviews — better | 17.2% of reviews |
| Number of ratings | 31 | 164 — better |
| Update frequency | Every 11 days — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Jerry Mayers | HARVEY TOOL COMPANY, LLC |
Customer experience
Right Angle
Machining Advisor Pro
User reviews
Right Angle
From 31 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Saves time
- 🛠️ Useful for construction/trades
- 📐 Accurate calculations
- 💡 Unique functionality (historically)
Room to improve
- 🐛 Recent updates removed key features
- 🐛 In-app purchases required for previously free features
- 🐛 Loss of purchase after update
- 🐛 App now requires payment for features
- 🐛 Misleading free app description
Machining Advisor Pro
From 164 App Store ratingsWhat we love
- 💡 Great concept, potential
- 💡 Modern milling data
- 💡 Great alternative to desktop
- 💡 Great App, highly recommend
Room to improve
- 🐛 Buggy, same as website
- 🐛 Interface hides submit button
- 🐛 Can't find common alloys
- 🐛 Website works better
- 🐛 Doesn't find tools by part number
Bugs and requests
Right Angle
Reported bugs
5 issues- App crashes after startup
- Update caused app to crash
- Loss of previously purchased unlocked app
- Keyboard covers input fields
- App changes mm to unspecified units
Requested features
9 requests- Restore fraction support
- Restore feet and inches support
- Provide both angles of a right triangle
- Allow scrolling or hiding the keyboard
- Bundling with other tools
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- Add metric units (millimeters)
- Option to choose metric inputs
- Dark mode option
- Advanced analytics dashboard
Machining Advisor Pro
Reported bugs
12 issues- Unable to input info beyond tool and material
- Tool path type not working
- Machine spindle not working
- Tool holder not working
- Won't open right now
Show 7 moreShow fewer
- Interface CONSTANTLY hides the submit button
- Privacy policy doesn't open a browser
- 500 error every time on sign in
- Unable to actually read the terms and conditions
- Privacy terms link was broken
- App crashes after sign in
- App locks up
Requested features
3 requests- Quick list for daily tools
- Ability to adjust radial depth of cut
- Allow finishing input without resetting
In-app purchases
Right Angle
- Renews Monthly14 Days trial$2.991 Month
- Renews Yearly1 Month trial$14.991 Year
- Small Tip$2.99
- Medium Tip$4.99
- Segments Calculator$5.99
Show 4 moreShow fewer
- Oblique Triangle Calculator$5.99
- Segment & Oblique Triangle$6.99
- Large Tip$9.99
- Huge Tip$29.99
Machining Advisor Pro
No in-app purchases
Questions
Is Right Angle free?
Is Machining Advisor Pro free?
Which has better reviews, Right Angle or Machining Advisor Pro?
Do Right Angle or Machining Advisor Pro have ads?
Which is updated more often, Right Angle or Machining Advisor Pro?
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