# CNC Calculator: Speeds Feeds — RPM, tap drill, taper, thread

> RPM, tap drill, taper, thread (iPhone/iPad app by Daniel Shtepu.)

- Source: https://appshunter.io/ios/app/cnc-calculator-speeds-feeds/id6806813650 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Shtepu](https://appshunter.io/developer/1859046917)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 49 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-10-08

## What is CNC Calculator?

Numbers you need standing at the machine, not at a desk.

WHAT IT WORKS OUT
• Feed and speed from material, tool and diameter — SFM and RPM, IPM and chip load
• Tap drill size for a thread, and the thread data behind it
• Taper, angle and offset for turning
• Bolt circle coordinates
• Unit conversion between inch and metric, including feed units

WHERE THE NUMBERS COME FROM
Every table shows its source: published cutting-data ranges and standard thread and drill
tables. Nothing is invented and nothing is guessed. A range is shown as a range, because that
is what the source says — the final call is the machinist's.

BUILT FOR THE SHOP FLOOR
• Works with no signal
• No account, no sign-up
• Big numbers, readable with safety glasses on

Terms of Use: https://denwee.com/app/cnc_calc/terms
Privacy Policy: https://denwee.com/app/cnc_calc/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $12.99 | one-time |


## Is CNC Calculator safe?

Not enough ratings yet to assess CNC Calculator.

## Is CNC Calculator legit?

CNC Calculator: Speeds Feeds appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for CNC Calculator is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-14

No release notes.

## Apps similar to CNC Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SnapCAM: CNC Part Scanner](https://appshunter.io/ios/app/snapcam-cnc-part-scanner/id6804973341) | — | Free | Utilities |
| [Feedrate: CNC Speeds & Feeds](https://appshunter.io/ios/app/feedrate-cnc-speeds-and-feeds/id6803240997) | — | Free | Utilities |
| [Workshop Calc](https://appshunter.io/ios/app/workshop-calc/id6782289595) | — | Free | Utilities |
| [CNC Machinist Calculator App](https://appshunter.io/ios/app/cnc-machinist-calculator-app/id6781401023) | 4.0 (1) | Free | Utilities |
| [CNC Speeds & Feeds Calculator](https://appshunter.io/ios/app/cnc-speeds-and-feeds-calculator/id6790015946) | — | Free | Utilities |
| [Machining Calculators](https://appshunter.io/ios/app/machining-calculators/id6740812774) | — | Free | Utilities |

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All apps by Daniel Shtepu: https://appshunter.io/developer/1859046917

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*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 2026-10-08.*