Comparison

Right Angle vs Machining Advisor Pro

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

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.

Highlights
  • CNC speeds and feeds calculator
  • Optimized for 30,000+ products
  • Supports 300+ material grades
  • Intuitive user interface
  • Customized setup options
  • Quick search functionality
Features
Read full description

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

Right Angle4 screens
Machining Advisor Pro1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Right Angle versus Machining Advisor Pro: the parameters behind the verdict, then further details
ParameterRight AngleMachining Advisor Pro
PriceFreeFree
Rating4.0 (31 ratings) — better4.0 (164 ratings)
Positive reviews73.3% of reviews — better17.2% of reviews
Number of ratings31164 — better
Update frequencyEvery 11 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size8 MB61 MB
Age rating4+4+
DeveloperJerry MayersHARVEY TOOL COMPANY, LLC

Customer experience

Right Angle

All ratings30 ratings
Positive70.0%
Neutral3.3%
Negative26.7%
Written reviews86 reviews
Positive73.3%
Neutral4.7%
Negative22.1%

Machining Advisor Pro

All ratings160 ratings
Positive73.8%
Neutral5.6%
Negative20.6%
Written reviews29 reviews
Positive17.2%
Neutral6.9%
Negative75.9%

User reviews

Right Angle

From 31 App Store ratings

What 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 ratings

What 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
Show 4 more
  • 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 more
  • 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

9 purchases

Right Angle

Subscriptions2
  • Renews Monthly14 Days trial$2.991 Month
  • Renews Yearly1 Month trial$14.991 Year
One-time7
  • Small Tip$2.99
  • Medium Tip$4.99
  • Segments Calculator$5.99
Show 4 more
  • Oblique Triangle Calculator$5.99
  • Segment & Oblique Triangle$6.99
  • Large Tip$9.99
  • Huge Tip$29.99
None

Machining Advisor Pro

No in-app purchases

Questions

Is Right Angle free?
Right Angle is free to download, with in-app purchases available.
Is Machining Advisor Pro free?
Machining Advisor Pro is free to download, with no in-app purchases.
Which has better reviews, Right Angle or Machining Advisor Pro?
Right Angle is rated higher. Right Angle averages 4.0 out of 5 from 31 ratings, while Machining Advisor Pro averages 4.0 from 164 ratings.
Do Right Angle or Machining Advisor Pro have ads?
Machining Advisor Pro shows ads; Right Angle does not.
Which is updated more often, Right Angle or Machining Advisor Pro?
Right Angle ships an update every 11 days, and Machining Advisor Pro every 6 weeks. Most recently, Right Angle was updated on November 10, 2026 and Machining Advisor Pro on November 2, 2026.

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