Comparison

Machining Calc vs DatumLab

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

Head to head
About

Machining Calc

Features
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Calculate cutting speed, spindle RPM, feed rate and depth of cut for milling, turning and drilling β€” in seconds, right at the machine. Machining Calc puts the everyday speeds and feeds math of the shop floor in one place. Enter your tool and cut, get the numbers, and get back to making chips. WHY MACHINISTS USE IT β€’ All three core operations in one app: milling, turning and drilling β€’ Clear inputs and results β€” no digging through handbook tables β€’ Quick checks between setups, at the machine or at your desk β€’ Works on iPhone, iPad and Apple-silicon Mac β€’ No account, and no data collected from you CALCULATIONS INCLUDED Milling β€’ Cutting speed and spindle speed (RPM) β€’ Feed rate β€’ Depth of cut Turning (lathe) β€’ Cutting speed and spindle speed (RPM) β€’ Feed rate β€’ Depth of cut Drilling β€’ Cutting speed and spindle speed (RPM) β€’ Feed rate Inch and metric units Chip load / feed per tooth WHO IT'S FOR CNC machinists and operators, manual machinists, programmers, manufacturing and mechanical engineers, toolroom staff, apprentices and machining students. WHY CHOOSE MACHINING CALC It does one job β€” machining calculations β€” and keeps it simple. The free version lets you try the calculators before you decide; Premium unlocks [list exactly what Premium adds]. Results are starting points. Always confirm cutting data against your tool manufacturer's recommendations and your machine's limits. Download Machining Calc and keep your speeds and feeds within reach. PREMIUM Monthly $2.99 Β· Yearly $5.99 Β· Lifetime $12.99 (one-time). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID settings. Privacy Policy: https://applicationcontent.wordpress.com/privacy-policy/ Terms of Use: https://applicationcontent.wordpress.com/terms-of-use/

About

DatumLab

Features
Read full description

DatumLab is a practical mechanical toolbox for machinists, CNC operators, mechanical designers, and shop-floor technicians. Use it to look up common thread data, calculate ISO fits, estimate speed and feed values, convert shop units, check material references, and save frequently used setups. Core tools work offline, so you can keep working at the machine, in the workshop, or during design review without depending on a network connection. Key tools: Thread calculator for metric, UNC, UNF, BSP, NPT, trapezoidal, and Heli-Coil references Tap drill, clearance hole, pitch, pitch diameter, and minor diameter lookup ISO tolerance and fit calculator for common hole and shaft zones Speed and feed calculations for milling, drilling, tapping, and turning Radial chip thinning and thread turning helpers Unit conversion for length, pressure, torque, speed, force, and mass Material references for common aluminum, steel, stainless, non-ferrous, and plastic materials Weight, bolt preload, and geometry helpers Favorites, recent calculations, custom tools, custom materials, and exportable reports DatumLab is designed for quick reference and setup planning. Values are reference starting points only. Always verify final machining parameters with your tool, machine, workholding, material, and supplier recommendations.

Screenshots

Machining Calc4 screens
DatumLab4 screens

Verdict

The call

The clearest difference is in-app purchases: DatumLab at none against Machining Calc's 3. Machining Calc's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price and ads there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Machining Calc sells 3 in-app purchases, starting at $2.99 per month. DatumLab asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
Machining Calc versus DatumLab: the parameters behind the verdict, then further details
ParameterMachining CalcDatumLab
PriceFreeFree
Update frequencyEvery 22 monthsβ€”
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.6 β€” better17.0
Further details β€” not scored
Size38 MB3 MB
Age rating4+4+
DeveloperAshvin Kevadiya建东 刘

In-app purchases

3 purchases

Machining Calc

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium$5.991 Year
One-time1
  • Lifetime$12.99
None

DatumLab

No in-app purchases

Questions

Is Machining Calc free?
Machining Calc is free to download, with in-app purchases available.
Is DatumLab free?
DatumLab is free to download, with no in-app purchases.
Do Machining Calc or DatumLab have ads?
Neither Machining Calc nor DatumLab shows ads.

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