Lathe Calculator vs DatumLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lathe Calculator
This tool streamlines CNC turning operations by quickly calculating essential parameters and generating programs. It simplifies complex tasks like thread and taper calculations, tolerance checks, and arc positioning, helping to reduce errors and improve efficiency for machinists and programmers.
- Thread calculation (metric, imperial, unified)
- Taper calculation
- Tolerance and fit analysis
- Arc tangency point calculation
- Macro programming assistant
- Save and reuse parameters
- Built-in program library
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Lathe Calculator is an efficiency tool designed specifically for CNC turning. Its core goal is to help you calculate parameters faster, generate programs quicker, and reduce errors. Key Features 1. Thread Calculation: Supports metric, imperial, and unified threads, with automatic output of key dimensions and reference G76 programs. 2. Taper Calculation: Covers common scenarios including large/small diameters, taper angles, and Morse tapers. 3. Tolerance & Fit: Quickly check hole/shaft tolerances and determine clearance or interference fits. 4. Arc Tangency Points: Assists with arc transitions and precise cutting point positioning. 5. Macro Programming Assistant: Includes common profiles and machining templates. 6. Additional Utilities: Chamfering, surface speed conversion, weight and material density calculations, and more. Efficiency Features 1. Save and reuse parameters with one tap to reduce repetitive input. 2. Built-in program library for storing and managing commonly used code. 3. Clear and structured results for quick on-site verification and adjustment. Suitable for machinists, CNC programmers, mechanical engineers, and learners in daily use.
DatumLab
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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.
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Verdict
The clearest difference is in-app purchases: DatumLab at none against Lathe Calculator's 1. 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
Both are free to download. Lathe Calculator sells 1 one-off in-app purchase. DatumLab asks for nothing beyond the download.
| Parameter | Lathe Calculator | DatumLab |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 24 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 惟 陈 | 建东 刘 |
In-app purchases
Lathe Calculator
- Lifetime Unlock$4.99
DatumLab
No in-app purchases
Questions
Is Lathe Calculator free?
Is DatumLab free?
Do Lathe Calculator or DatumLab have ads?
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