Comparison

Quickgrind vs CNC Machinist Calculator App

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

Head to head
About

Quickgrind

Features
Read full description

The Quickgrind App gives you fast and convenient access to our full range of standard and bespoke carbide tooling including Endmills, Barrel Cutters, High Feed Endmills, Drills and Form Tools. The detailed product pages will help you select the right tool for your application. All our standard products include PDF, STP & DXF digital downloads. The Advanced Milling Calculator steps through material, application and product selection to provide the user with reliable application specific cutting data. The Milling Calculator supports a wide range of ISO materials and milling applications. Cutting data reports can be generated and easily shared or saved. Infinite Possibilities - Don’t limit yourself to standard ranges. All our tools can be designed specifically for your application. Use the integral form to send us your specification.

About

CNC Machinist Calculator App

This app provides instant calculations for CNC machining, including speeds, feeds, and thread data. It offers a comprehensive set of tools for milling, turning, drilling, and tapping, with transparently shown formulas and shop math functions. Designed for the shop floor, it works offline with large, glove-friendly controls and supports both imperial and metric units.

Highlights
  • Instant RPM and feed rate calculation
  • Milling, turning, drilling, and tapping tools
  • Thread and 3-wire measurement calculators
  • Bolt circle and triangle solvers
  • G & M Code reference
  • Offline functionality
  • Imperial and metric support
Features
Read full description

The right RPM and feed, at the machine, in under three seconds, and the math to prove it. Punch in what you're cutting and what you're cutting it with. CNC Speeds & Feeds converts published starting values into spindle RPM and feed rate instantly, and every result opens up to show the formula with your numbers in it. No account, no ads, it works in the shop, gloves on, with or without Wi-Fi. CUTTING • Milling: RPM & IPM from material, tool Ø and flutes, with radial chip thinning (RCTF) • Turning: RPM at diameter (G96-ready), feed per rev, cut-time estimate • Drilling: 179-size letter/number/fraction/metric drill picker, feed and peck guidance • Tapping: tap drill at 50–85% engagement plus rigid-tapping feed • Surface Finish: theoretical Ra/Rt from feed and nose radius, and the reverse THREADS & MEASUREMENT • Threads: UN & ISO metric data: pitch Ø, minor Ø, tap drills, computed live • 3-Wire: best wire size and measurement-over-wires, forward and reverse • Drill Point: tip length from diameter and point angle, so your depths land right LAYOUT & SHOP MATH • Bolt Circle: hole coordinates with a live drawing, copy straight to your program sheet • Triangle: right-triangle solver from any two of side, side, hypotenuse or angle • Stock Weight: weight by material for round bar, rectangular bar, tube or plate REFERENCE • G & M Codes: 59 G- and M-codes explained in a searchable shop reference REAL DATA, SHOWN TRANSPARENTLY Cutting data is compiled from published manufacturer guidelines across 21 materials and shown as RANGES with a conservative default, because vendors can disagree, and one wrong number is how tools snap. You can override any value, that's by design. BUILT FOR THE SHOP FLOOR • 100% offline • Big glove-friendly controls, high-contrast dark mode • Imperial and metric everywhere • Every calculator remembers your last inputs Requires Subscription or One-Time Payment: Start with a 14-day free trial, every calculator, every material, the full thread & drill data and the G & M-code reference. Then keep it your way: buy once with Lifetime, or subscribe monthly/annually. Works offline. Family Sharing supported. ----- Legal Notice ----- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Quickgrind4 screens
CNC Machinist Calculator App4 screens

Verdict

The call

The clearest difference is in-app purchases: Quickgrind at none against CNC Machinist Calculator App's 3. CNC Machinist Calculator App's advantage is update cadence (every 5 weeks vs every 5 months). On price, ads, device support and iOS requirement 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 App sells 3 in-app purchases, starting at $1.99 per month. Quickgrind asks for nothing beyond the download.

UpkeepUpdate frequency

Quickgrind ships an update every 5 months, CNC Machinist Calculator App every 5 weeks. The most recent releases landed on October 9, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Quickgrind versus CNC Machinist Calculator App: the parameters behind the verdict, then further details
ParameterQuickgrindCNC Machinist Calculator App
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size147 MB18 MB
Age rating17+4+
DeveloperQuickgrind LimitedBlue Mantiq LLC

In-app purchases

None

Quickgrind

No in-app purchases

3 purchases

CNC Machinist Calculator App

Subscriptions2
  • Pro Monthly14 Days trial$1.991 Month
  • Pro Yearly14 Days trial$9.991 Year
One-time1
  • Lifetime$19.99

Questions

Is Quickgrind free?
Quickgrind is free to download, with no in-app purchases.
Is CNC Machinist Calculator App free?
CNC Machinist Calculator App is free to download, with in-app purchases available.
Do Quickgrind or CNC Machinist Calculator App have ads?
Neither Quickgrind nor CNC Machinist Calculator App shows ads.
Which is updated more often, Quickgrind or CNC Machinist Calculator App?
Quickgrind ships an update every 5 months, and CNC Machinist Calculator App every 5 weeks. Most recently, Quickgrind was updated on October 9, 2026 and CNC Machinist Calculator App on October 31, 2026.

Other comparisons