FSWizard PRO vs Thread Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FSWizard PRO
This app calculates optimal cutting speeds and feeds for CNC milling and turning operations. It supports various materials, tools, and machining techniques like chip thinning and HSM. Includes helpful charts and calculators for machinists.
- CNC milling and turning speed calculator
- Material and tool-based cutting condition calculation
- Chip thinning and HSM support
- Built-in drill and tap charts
- GD&T reference
- Triangle and fillet calculators
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CNC Milling and Turning Speed and Calculator (Wizard) Absolutely the best CNC machinist speed and feed calculator around. Calculate cutting conditions simply by choosing your work and tool material. No need to know any numbers. FSWizard will automatically use recommended cutting speed and chip load. Made by a machinist for machinists. Improve productivity and optimize cutter life. Supports Chip thinning and HSM machining. Suggests optimum cutting depth and balances cutting parameters. *Milling, drilling, and turning speeds and feeds for various materials. * Built-in Drill and Tap charts for both imperial and metric systems will not leave you looking for one in your toolbox. *Tap drill sizes for most common imperial and metric taps. *Tap drill sizes for BSP and NPT pipe threads. *GD&T Reference *Triangle Calculator will be a great help to anyone who needs to calculate oblique or a right angle triangle *Fillet Calculator will find tangent points to a circle and two lines *Milling Tools available: Solid Endmill, Indexed Endmill, and Facemill, Solid and indexable drills *Drilling Tools: Jobber Drill, Hi-Performance Parabolic Drill, Spade Drill, Reamer *Turning Tools: Profiling and Grooving Charts: Drill chart, Imperial, Metric, Pipe Tap charts are also included in the free version. FSWizard works with both metric and imperial units. Please visit: https://hsmadvisor.com/?page=help&article_id=4811_supported-materials-list For a list of workpiece materials available in the PRO version
Thread Calculator
This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.
- Thread cutting calculator for multiple units
- Cold forming calculator
- Thread repair calculator
- Tap hole and bolt diameter calculation
- Saves time compared to tables
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The app includes: - A calculator for thread cutting for the following units: M, MF, UNC, UNEF, UNF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF - A calculator for cold forming - A calculator for thread repair You want to know which tap hole you should drill for threading or which bolt you should use? With this app, you will find the desired measures in no time: Simply select the desired thread type, nominal size, and pitch and you will get the matching diameter for your project. This saves precious time you would have spent tediously searching for internal and external thread dimensions in tables. As this app is still in its development phase, new features will follow soon, so stay tuned! GSR Gustav Stursberg GmbH is a manufacturer for high-quality thread cutting tools with 130 years of operational experience in the area of threading tool production. The product portfolio includes a wide selection of tools for different areas of application. GSR taps, twist drills, round dies, and tool holders are manufactured to the highest quality standards in our own production facilities. The constant quality control during the production process guarantees a consistent good quality in all national as well as international production facilities. This requires enormous precision, which is reflected by our tools. Precision is in the details. Since 1889.
Screenshots
Verdict
The clearest difference is review sentiment: FSWizard PRO at 90% against Thread Calculator's 33%. FSWizard PRO also leads on rating (4.8 vs 4.3) and ads (none vs shown). Thread Calculator's advantage is price (Free vs $17.99). On ratings volume, in-app purchases 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
Thread Calculator is free to download; FSWizard PRO costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.
FSWizard PRO holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 24 and 13 respectively. Written reviews point the same way: 90% of FSWizard PRO's written reviews are positive against 33% of Thread Calculator's.
FSWizard PRO ships an update monthly, Thread Calculator every 18 months. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.
| Parameter | FSWizard PRO | Thread Calculator |
|---|---|---|
| Price | $17.99 | Free — better |
| Rating | 4.8 (24 ratings) — better | 4.3 (13 ratings) |
| Positive reviews | 90.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 24 — better | 13 |
| Update frequency | Monthly — better | Every 18 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #55 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 13 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Eldar Gerfanov | GSR Gustav Stursberg GmbH |
Customer experience
FSWizard PRO
Thread Calculator
In-app purchases
FSWizard PRO
No in-app purchases
Thread Calculator
No in-app purchases
Questions
Is FSWizard PRO free?
Is Thread Calculator free?
Which has better reviews, FSWizard PRO or Thread Calculator?
Do FSWizard PRO or Thread Calculator have ads?
Which is updated more often, FSWizard PRO or Thread Calculator?
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