# Machinist Journeyman > Machinist tool for everyday machine shop calculations and conversions. (iPhone/iPad app by smartcalculations.) - Source: https://appshunter.io/ios/app/machinist-journeyman/id353877863 (this page in markdown: same URL + `.md`) - Developer: [smartcalculations](https://appshunter.io/developer/347689813) - Category: Business, Utilities - Price: $9.99 - Rating: 4.40/5 from 18 App Store ratings · 51 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 4 MB - Languages: American English - Released: 2010-02-04 - Data updated: 2026-09-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/machinist-journeyman/id353877863/reviews.md ## What is Machinist Journeyman? Machinist Journeyman was just updated with new features to give you the best app possible. You will be amazed by the amount of "I Use it Everyday" content in this app. Featured in several Trade Publications, this app is surfacing quickly as the obvious choice for assisting in dozens of everyday Machine Shop Calculations. *METRIC VERSION NOW IN APP STORE* Search for "Machinist METRIC Journeyman" Striving for a User-Friendly Experience, the Journeyman brings you the desired calculations for Chip Thinning Milling Calculations, Circular Interpolation Feed Adjustments, Tapping Feeds, Trig Functions, Sine Bar, Metric & Inch Conversions, Tap Drill Sizes, Desired Spot Drill & C'Drill Diameter by Depth and much more. The "Machinist Journeyman" includes:: "Picker" Style Decimal-Drill Chart "Picker" Style Centerdrill Info MILLING SECTION IPM FEEDS: *RPM & IPM *SFM & FPT *Radial Chip Thinning *Ballnose Chip Thinning *45 Degree Lead Angle Chip Thinning *Tap Speed & Feed *Threadmill G-Code Program Generator *Toroidal Milling MILLING SECTION IPR FEEDS: *RPM & IPR *SFM & FPT *Radial Chip Thinning *Ballnose Chip Thinning *45 Degree Lead Angle Chip Thinning *Tap Speed & Feed MILLING MISC: *RPM *SFM *Internal Circular Interpolation Feed Adjustments *External Circular Interpolation Feed Adjustments TURNING SECTION: *RPM *SFM *Helix Angle and Proper Anvil Selection for Laydown Threading Systems *Thread Reference Point *Length to Diameter Ratio *Smallest Effective Dia for desired SFM based upon Max RPM *G97 to G96 Constant SFM Calculations *Surface Finish Calculation DRILLING SECTION: *Drill Point Length *Spot Drill Depth for Desired Diameter *Center Drill Depth for Desired Diameter *Center Drill Dimension Information *Tap Drill Sizes for: NPT, NPS, BSPT & BSPP *Tap Drill Sizes Calculations for: * Cut Tap Inch * Cut Tap Metric *Form Tap Inch *Form Tap Metric Allows you to calculate Special Thread Specifications, not choosing ONLY from a pre-determined list MATH: *NEW* CNC Bolt Circle Calculator, 72 Holes, 3 O'Clock is Zero Degrees and goes Counter ClockWise in Rotation. Bolt Circle Calculator *Right Triangle Trig Section *Sine Bar Height *Dimensions for + and - Tolerances *Dimensions for + and + Tolerances *Dimensions for - and - Tolerances (Thanks Dave for the Idea) CONVERSION SECTION: *IN / MM *HP / KW *LB/ KG *Temperature *Torque *Square Across Corners *Hex Across Corners *Length to Diameter Ratio *MM Pitch to Threads per Inch ESTIMATING CALCULATIONS: *Qty. of Inserts *Per Part Tool Cost *Lathe Cut Time *Mill Cut Time *Manual Mill Feeds *Production Hours Needed for Job *Feet of Material Needed SALESMAN CALCULATIONS: *Profit Margin *Sell / Cost / Profit *Off List Discount REFERENCES: *NEW* Inch Size Screw Thread Info up to 1-1/4" diameter *GD&T Symbol Chart *Rockwell C to Brinell Hardness INFORMATION: *Highlighting articles that the Developer has had published which explains certain machining processes. Future updates will include Video Training Sessions. Focusing on a User-Friendly Layout, the Journeyman will continue to grow as more areas are developed and will be released as FREE Updates. Besides just producing the numbers you desire, the Journeyman illustrates certain theories while trying to educate users not familiar with these concepts. This training concept will be continued as the app grows. Visit www.smartcalculations.com to see more. NOTE: We suggest to periodically turn your device off and let it clear any stranded memory. The app will load every time after doing this small step. ## Key features - Milling calculations (IPM & IPR) - Turning calculations - Drilling calculations - Math and trig functions - Metric and inch conversions - Estimating calculations - Reference charts ## Chart rankings - #19 in Top Paid · Business (US App Store) ## Recent user reviews (10 of 51) All indexed reviews: https://appshunter.io/ios/app/machinist-journeyman/id353877863/reviews.md ### 4/5 — Great app and very useful *2025-10-18, version 17.2* Every thing is available that you should need for reference needs as a machinist to a point only thing it doesn’t have that I have to go elsewhere for is metric thread information. ### 5/5 — Best machinist app out there! *2022-06-16, version 17.2* I’ve been using this app since the creation of it. I use it everyday and show it to all my customers. I’ve been selling carbide since 1988 and have covered the Bay Area and Central Valley in California for Mitsubishi Carbide cutting tools for the past 17-1/2 years. It’s very simple and user friendly. Years ago I used an app on my old palm pilot called “Machinist”. I wish these 2 would get together and create one together. “Machinist” was amazing and had a materials data base and would allow you to input the machine data such as rapids, horse power, etc.. so when calculating drilling cycle times it would allow input for distance between the holes. Keep up the great work and thanks for the app!! ### 4/5 — Useful *2018-09-08, version 17.2* I really like the app and use it often. It would be really nice if you could add cycle times to the drilling section. All sections ### 1/5 — Issue! *2016-10-18, version 9.17.12* Using new IOS 10. When right triangle solver is used to calculate. It will take the first known with a decimal point. However when you put the second number in with a decimal it closes the app??? ### 4/5 — Needs update *2016-10-01, version 9.17.12* Needs update crashes when adding decimal places to more than one place otherwise it works great ### 5/5 — Works great! *2014-12-26, version 9.17.12* I am an application rep for a company that sells round tools and indexable. Works perfect! ### 4/5 — No metric *2013-10-31, version 9.17.12* Good app but for $10 they should also include the metric calculations. ### 2/5 — I wouldn't.. *2013-04-18, version 9.17.12* I bought it and sorta regret spending $10 on this app. The best thing about this app is the bolt circle section. That's really all because my machinist handbook is the 11th edition and has nothing on bolt circles. There are some handy things but a machinist hand book would be the best way to go instead of this app. ### 5/5 — Great app *2012-09-25, version 9.17.12* They have fixed the issues from the last update. I will happily recommend this app to anyone. ### 5/5 — Cnc programmer *2012-09-09, version 6.1* Love this app! You should add a thread turning calculator for all threads (acme, round, exc) with min/max/pitch dia ref, internal and external. Also a ball mill scalop height calculator would be awesome. Great app!!! ## Frequently asked questions about Machinist Journeyman ### What kind of calculations does the Machinist Journeyman app offer? The app offers a wide range of calculations for machinists, including milling feeds and speeds, chip thinning, turning calculations, tap drill sizes for various thread types, trigonometric functions, sine bar calculations, metric and inch conversions, and estimating job costs. It also includes specialized calculators for bolt circles and threading. ### Is there a metric version of this app available? Yes, a metric version of the app is available. You can find it by searching for "Machinist METRIC Journeyman" in the App Store. This ensures users can perform calculations using metric units as needed. ### What are the main sections of the Machinist Journeyman app? The app is organized into several key sections: Milling (IPM Feeds, IPR Feeds, Misc.), Turning, Drilling, Math, Conversions, Estimating Calculations, Salesman Calculations, and References. Each section contains specific tools and calculators relevant to that area of machining. ### What makes this app useful for everyday machine shop tasks? The app is designed for user-friendliness and provides dozens of everyday machine shop calculations. Features like chip thinning calculations, circular interpolation adjustments, and quick access to tap drill sizes and conversions help streamline workflows and improve accuracy in daily tasks. ### Does the app support custom thread specifications? Yes, the app allows you to calculate special thread specifications rather than being limited to a pre-determined list. This flexibility is crucial for machinists working with non-standard or custom thread requirements. ## Version history (last 5 releases) ### 17.2 — 2017-08-28 This update from Apple will improve the functionality of this app. No new features are included. Added Centerdrill Diameter feature ### 17.1 — 2017-06-16 Rebuilt for new IOS and cleaned a few things ### 17.0 — 2017-06-15 Rebuilt the entire code to work with the latest IOS platforms ### 9.17.12 — 2012-09-24 Removed the Branding of a Temporary Sponsor. Fixed the images in the Math Trig area. ### 6.1 — 2012-07-27 Updates include how to receive a $10 iTunes Gift Card while attending IMTS 2012 in Chicago from Sept 10-15, 2012. Mahar Tool Supply is making the offer to anyone who has purchased the Machinist journeyman App. Find out more info inside the app or visit www.mahartool.com ## Apps similar to Machinist Journeyman | App | Rating | Price | Category | | --- | --- | --- | --- | | [NORTON iGRIND](https://appshunter.io/ios/app/norton-igrind/id550147080) | 5.0 (5) | Free | Business | | [Seco Assistant](https://appshunter.io/ios/app/seco-assistant/id1051294824) | 4.6 (161) | Free | Business | | [Iscar World](https://appshunter.io/ios/app/iscar-world/id1308293147) | 4.8 (105) | Free | Business | | [Xometry Workcenter](https://appshunter.io/ios/app/xometry-workcenter/id6467016160) | 4.3 (7) | Free | Business | | [OSG Events](https://appshunter.io/ios/app/osg-events/id6470958024) | — | Free | Business | ## More apps by smartcalculations - [indianacodes](https://appshunter.io/ios/app/indianacodes/id6748588392) - [PTSecrets](https://appshunter.io/ios/app/ptsecrets/id6757113812) - [Pl8Room](https://appshunter.io/ios/app/pl8room/id6759414782) All apps by smartcalculations: https://appshunter.io/developer/347689813 ## Related topics [machinist journeyman](https://appshunter.io/ios/topics/machinist-journeyman) · [machinist tool](https://appshunter.io/ios/topics/machinist-tool) · [machinist](https://appshunter.io/ios/topics/machinist) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*