Comparison

CNC Machinist Calculator vs Trigonometry Calculator.

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

Head to head
About

CNC Machinist Calculator

This industrial calculator provides CNC programmers and machinists with instant calculations for speeds, feeds, horsepower, coolant flow, tolerances, and G-code patterns. It offers 16 production-ready tools, works offline, and features a user-friendly interface designed for the shop floor. Save and share results for improved efficiency and accuracy.

Highlights
  • Milling Speed & Feed Calculator
  • Drilling Speed & Feed Calculator
  • Tolerance & Fit Calculator
  • G-Code Reference & Generators
  • Chip Load & Tool Deflection Calculator
  • Offline functionality
  • Inch/Metric unit switching
Features
Read full description

Meet Milling • Drilling • Turning — the pocket‑sized industrial calculator trusted by CNC programmers, tool‑room veterans, and manufacturing engineers worldwide. In under a second, it turns scribbles on a setup sheet into exact spindle RPM, feed per tooth, horsepower draw, coolant flow, tolerances, and even G‑code patterns — no spreadsheets, no rules of thumb, no signal required. 16 production‑ready tools (offline) • Milling Speed & Feed • Milling Horsepower • Milling Step‑over Distance • Drilling Speed & Feed • Drilling Horsepower • Drill Size / Tap Drill Look‑up • Tap Size (pitch & class) • Turning Speed & Feed • Turning Horsepower • Turning Surface Roughness • Thread Milling (helical path, arc length, chip thinning) • Tool‑Life Predictor • Coolant Flow & Nozzle Velocity • NEW: Tolerance & Fit Calculator (ISO 286 / ANSI B4.1) • NEW: G‑Code Reference Library & Quick Generators • NEW: Chip Load & Tool Deflection Calculator What’s new and why it matters • Tolerance & Fit Calculator (ISO 286 / ANSI B4.1) • Pick standard fits (e.g. H7/g6) and get upper/lower limits, deviations, and fit type (clearance/transition/interference) instantly. • Visual tolerance zones help with assembly planning and inspection. • Inch/metric aware, with save/share for traveler notes. • G‑Code Reference & Quick Generators • Clean, searchable G‑ and M‑code library with categories, formats, and examples you can copy to clipboard. • Quick Generators: Bolt circle, rectangular and linear patterns, plus arc‑center from 3 points — perfect for one‑off ops and quick CAM notes. • Chip Load & Tool Deflection Calculator • Computes chip load per tooth, cutting forces, bending stress, overhang ratio, and tool deflection (µm & thou). • Chatter risk score with visual indicators and actionable recommendations. • Material‑aware defaults for tool and workpiece; supports carbide/HSS and common alloys. Why machinists keep it on their home screen • Built for the shop floor — big type, dark mode, glove‑friendly UI; works 100% offline. • Verified formulas & data — derived from ISO, ASM Handbook, and Machinery’s Handbook; peer‑reviewed by veteran machinists. • Inch/metric in one tap — instant unit swap, plus surface speed, chip‑load, and MRR summaries. • Smart defaults — choose tool material and workpiece alloy to pre‑fill recommended SFM and fz. • Save & share — bookmark setups, copy results to CAM notes, or AirDrop to the operator. • Light on battery, heavy on accuracy — single‑screen calculators to keep you cutting, not tapping. Built to boost OEE and quality • Hit first‑article faster with fewer test cuts. • Reduce scrap and rework through predictable feeds, speeds, and fits. • Improve tool life with correct chip load and deflection control. • Communicate clearly — standardized results you can paste into setup sheets. Always improving We ship practical, production‑ready tools that machinists actually use. If it doesn’t help you ship parts, it doesn’t ship in the app. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Trigonometry Calculator.

This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.

Highlights
  • Right-angled & scalene triangle support
  • Formula reference guide
  • Accurate side, angle, and area calculations
  • High precision to 14 decimal places
  • Flexible angle units (degrees/radians)
  • User-friendly interface
Read full description

Triangle Trigonometry Calculator Effortlessly calculate key values for both right-angled and scalene triangles with this intuitive, high-precision trigonometry calculator. Key Features: • Right-Angled & Scalene Support: Easily solve both right-angled and scalene triangles based on the values you know. • Formula Reference: Learn and solve with confidence by accessing a clear, organized guide to all triangle formulas used in the app. • Accurate Calculations: Quickly determine sides, angles, and area with reliable trigonometric formulas. • High Precision: Results are calculated to 14 decimal places for maximum accuracy. • Flexible Angle Units: Choose between degrees or radians for all angle inputs and outputs. • User-Friendly Interface: A clean, minimal design for fast, straightforward calculations. • Fast and Efficient: Ideal for students, engineers, and professionals needing quick, accurate results anytime. Subscribe to unlock calculation steps, formulas, and remove ads!

Screenshots

CNC Machinist Calculator4 screens
Trigonometry Calculator.4 screens

Verdict

The call

CNC Machinist Calculator and Trigonometry Calculator. both sit at 5.0 stars, but that hides the real split: 100% of Trigonometry Calculator.'s written reviews are positive against 50% of CNC Machinist Calculator's. Trigonometry Calculator. also leads on ratings volume (3 vs 1). CNC Machinist Calculator's advantage is ads (none vs shown). On price, rating, update cadence and in-app purchases 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. CNC Machinist Calculator sells 3 in-app purchases, starting at $0.99 per month and Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CNC Machinist Calculator against 5.0 for Trigonometry Calculator.. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 50% of CNC Machinist Calculator's written reviews are positive against 100% of Trigonometry Calculator.'s.

UpkeepUpdate frequency

CNC Machinist Calculator ships an update every 3 weeks, Trigonometry Calculator. every 2 weeks. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
CNC Machinist Calculator versus Trigonometry Calculator.: the parameters behind the verdict, then further details
ParameterCNC Machinist CalculatorTrigonometry Calculator.
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size10 MB64 MB
Age rating4+4+
DeveloperVladislav ZhirnovHoritech

Customer experience

CNC Machinist Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Trigonometry Calculator.

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

CNC Machinist Calculator

Subscriptions2
  • Remove ADS monthly$0.991 Month
  • Full version / year$2.991 Year
One-time1
  • Remove ADS$4.99
2 purchases

Trigonometry Calculator.

Subscriptions2
  • Monthly3 Days trial$2.991 Month
  • Annual3 Days trial$24.991 Year

Questions

Is CNC Machinist Calculator free?
CNC Machinist Calculator is free to download, with in-app purchases available.
Is Trigonometry Calculator. free?
Trigonometry Calculator. is free to download, with in-app purchases available.
Which has better reviews, CNC Machinist Calculator or Trigonometry Calculator.?
CNC Machinist Calculator and Trigonometry Calculator. are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do CNC Machinist Calculator or Trigonometry Calculator. have ads?
Trigonometry Calculator. shows ads; CNC Machinist Calculator does not.
Which is updated more often, CNC Machinist Calculator or Trigonometry Calculator.?
CNC Machinist Calculator ships an update every 3 weeks, and Trigonometry Calculator. every 2 weeks. Most recently, CNC Machinist Calculator was updated on September 22, 2026 and Trigonometry Calculator. on September 9, 2026.

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