# Feedrate: CNC Speeds & Feeds — Machinist Calculator & Tools

> Machinist Calculator & Tools (iPhone/iPad app by Andrej Sazdovski.)

- Source: https://appshunter.io/ios/app/feedrate-cnc-speeds-and-feeds/id6803240997 (this page in markdown: same URL + `.md`)
- Developer: [Andrej Sazdovski](https://appshunter.io/developer/1873403159)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 51 MB
- Languages: American English
- Released: 2026-09-15
- Data updated: 2026-09-28

## What is Feedrate?

Feedrate gives you speeds and feeds you can actually run, for milling, drilling and
turning across 18 material groups.

REQUIRES A ONE-TIME PURCHASE
Feedrate is a paid tool. A single $8.99 purchase unlocks the whole app — no
subscription, nothing recurring, nothing to cancel. Buy it once, keep it.

BUILT FOR THE REAL CUT
Most calculators hand you a textbook number and stop. Feedrate applies the two
corrections that decide whether a cutter survives:

- Radial chip thinning. Below 50% radial engagement the chip comes out thinner than
  your programmed feed, so the tool rubs instead of cutting. Feedrate raises the feed
  to compensate, and shows you the factor it used.
- Slot de-rate. Buried in a full-width slot, chip evacuation and deflection are the
  limit, not the formula. Feedrate backs the numbers off instead of pretending
  otherwise.

YOUR MACHINES, NOT A GENERIC ONE
Save every machine you run with its real spindle speed, feed and power limits.
Results are clamped inside those limits, so you never get a number your mill cannot
reach. Starter profiles for a VMC, a benchtop mill and a router are included.

THE FULL SHOP REFERENCE
- Tap drill sizes at any thread engagement percentage, imperial and metric
- Clearance holes, close through loose
- Bolt circle coordinates
- Right-triangle solutions
- Sine bar stacks

WHAT YOU GET BACK
Spindle RPM, feed rate, feed per tooth or per rev, material removal rate, spindle
power and torque. Turning adds an estimated surface finish. Every result carries the
surface speed it assumed, so you can check the tool's datasheet against it.

INCH AND METRIC
Switch at any time. The engine computes in metric and converts at the boundary, so
nothing drifts when you change systems mid-job.

WORKS WITHOUT SIGNAL
No account, no cloud, no tracking. Everything runs on the device, which matters in a
shop with no reception.

A NOTE ON THE NUMBERS
Cutting data is a conservative starting point, not gospel. Values vary by tool brand,
coating, coolant and rigidity. Your specific tool's datasheet always wins. Feedrate
gives you a defensible place to start and shows its reasoning.

TERMS AND PRIVACY
Terms of Service: https://feedrate-web.vercel.app/terms
Privacy Policy: https://feedrate-web.vercel.app/privacy
Questions or a number that looks wrong: octacoach143@gmail.com

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Feedrate — Full Unlock | $8.99 | one-time |


## Is Feedrate safe?

Not enough ratings yet to assess Feedrate.

## Is Feedrate legit?

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


## Version history (last 1 release)

### 1.0 — 2026-09-15

No release notes.

## Apps similar to Feedrate

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CNC Calculator: Speeds Feeds](https://appshunter.io/ios/app/cnc-calculator-speeds-feeds/id6806813650) | — | 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 Machinist: Speeds & Feeds](https://appshunter.io/ios/app/cnc-machinist-speeds-and-feeds/id6782603833) | — | Free | Utilities |
| [Helix Angle Calculator](https://appshunter.io/ios/app/helix-angle-calculator/id6745720275) | — | Free | Utilities |
| [Laser Shooter](https://appshunter.io/ios/app/laser-shooter/id1174671176) | 1.0 (1) | Free | Utilities |

## More apps by Andrej Sazdovski

- [OctaCoach: Boxing Round Timer](https://appshunter.io/ios/app/octacoach-boxing-round-timer/id6758529104)
- [DecisionLoop](https://appshunter.io/ios/app/decisionloop/id6759516422)
- [FrameBox - Photo Framer](https://appshunter.io/ios/app/framebox-photo-framer/id6761389249)
- [FocusMind - Pomodoro Timer](https://appshunter.io/ios/app/focusmind-pomodoro-timer/id6763880575)
- [Split Planner for HYROX](https://appshunter.io/ios/app/split-planner-for-hyrox/id6806634717)

All apps by Andrej Sazdovski: https://appshunter.io/developer/1873403159

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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 2026-09-28.*