# KNURL — Haptic Fidget Toys — Oddly satisfying, milled metal

> Oddly satisfying, milled metal (iPhone/iPad app by Tural Mustafayev.)

- Source: https://appshunter.io/ios/app/knurl-haptic-fidget-toys/id6804843383 (this page in markdown: same URL + `.md`)
- Developer: [Tural Mustafayev](https://appshunter.io/developer/6792269410)
- Category: Games, Casual
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 8 MB
- Languages: American English
- Released: 2026-09-01
- Data updated: 2026-10-16

## What is KNURL?

Ten machined fidget toys you can actually feel.

A hinge, a knob, a snap, a zipper, a lighter, a plunger, a comb, a sheet of iron
filings, a bearing spinner, and two beads on a string — each one a real 240 Hz physics
simulation driving the Taptic Engine. Behind a bolt you have to throw to get in.

No ads. No timers. No scores.

THE DRAWER

One rack, racked by what the hand does.

TURN
PIVOT — a hinge with a real detent. Free, forever.
KNOB — a detented dial that clicks under load and coasts when you let go.
SPINNER — the tri-lobe on a real bearing. One flick, twenty seconds of whir, and a thumb on the rim to grind it down.

PRESS
SNAP — a sheet of domes. Each one buckles once and pops back. Free, forever.
PLUNGER — charge the pins, then let the whole thing go at once.
LIGHTER — a flip-top. The wheel spins, the flint catches, and any stroke can miss.

DRAG
ZIPPER — a run of teeth under the tab, every one of them a separate event.
COMB — thirty-four teeth. Run your thumb along them; every one bends and slips, a shade higher than the last.
FILINGS — iron dust on glass over a magnet. Sweep the bar and it gathers a burr on the poles that grows and ratchets under the thumb; lift, and the metal scatters and flies home in half a second, ready to sweep again.

SWING
BEGLERI — two beads on a cord. Swing one, flip it over your finger, knock it against the other.

And BOLT, the drawer's own front door: slide it right and the channel comes open.

HOW IT WORKS

Nothing here is a recording. A deterministic physics core runs at 240 Hz and every click, catch and rattle you feel is integrated out of it — mass, friction, spring rate, the exact velocity your thumb was moving. Miss the detent and you feel the miss. The audio is modal synthesis baked from the same model, so a machine sounds like the thing you just felt, not like a sample that happened to fire.

The shop around the machines is flat and quiet: a name at the top, the rack, and nothing explained. Dark or light, or whichever one the phone is already in.

Built for ProMotion. Portrait. iPhone only. Works with the ringer off — the haptics are the point.

THE FINISHES — ALL FIVE, FREE

Brass, steel, copper, black oxide, titanium. Each one is a different hand speaking the same vocabulary: a different weight to every click, a different voice under it. One pick moves every machine in the drawer, cuts a new face into each one, and changes the home screen icon to match.

These are free, and they always will be. A haptic is not something you can judge from a screenshot, so we would rather you felt all five of them on the free machines than read about them.

CARE

No account. No analytics. No network of our own - the only thing that leaves the phone is the App Store purchase itself, handled by Apple. Nothing else does. There is no rating prompt, because the app does not ask you for anything.

—

KNURL is free with PIVOT and SNAP on the bench and all five finishes with them. The other eight machines, and the wear they earn, come with THE FULL DRAWER, sold two ways: a single year, bought once, or a one-time purchase that is yours forever and takes in every machine cut after it. Both are shown in the app in your own currency, and neither renews automatically - the year simply ends when it ends, and buying another one is a decision, not a default. Each of those eight opens as a demo first, a bounded allowance counted on the machine's own odometer and spent once, so you can feel a machine in the hand before you decide about it.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| The Full Drawer, Forever | $9.99 | one-time |
| The Full Drawer, One Year | $4.99 | one-time |


## Is KNURL safe?

Not enough ratings yet to assess KNURL.

## Is KNURL legit?

KNURL — Haptic Fidget Toys has limited verification signals. The AppsHunter Legitimacy Score for KNURL is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 2.1 — 2026-09-10

2.1 — TRY EVERY MACHINE

Every locked machine now opens as a DEMO. It carries a bounded allowance counted on the machine's own odometer, roughly five minutes of working it, and the machine screen shows DEMO over the balance while you do. It is spent once, across launches, and nothing refills it. When it runs out the machine locks.

The LIGHTER now opens on a shake as well as closing on one. Flick the wrist with the lid shut and the top comes up.

The PLUNGER's crown ring takes the machine's accent and brightens with the charge banked on the pins, so you can see there is something to let go of.

And a machine's caption wraps instead of clipping at the largest text sizes.

### 2.0 — 2026-09-08

2.0 — A NEW SHOP, AND FOUR MORE MACHINES

The shell is rebuilt. Flat surfaces, no drawn hardware, and one rack on the home screen with every machine in it racked by what the hand does: TURN, PRESS, DRAG, SWING. There is a real light theme now beside the dark one, and settings is five short sections behind the gear.

SNAP joins PIVOT as a machine that is free forever. The other eight are THE FULL DRAWER.

Four machines join the drawer. COMB — thirty-four teeth, slow to count and fast to buzz. SPINNER — a tri-lobe on a real bearing, twenty seconds of whir off one flick, and it stays audible at any speed. BEGLERI — two beads on a cord, with a bead that lands on the bench skidding instead of stopping dead. FILINGS — sweep the bar and it gathers iron into a burr on the poles that grows and ratchets under the thumb; lift and the metal scatters, then flies home in half a second, ready to sweep again.

The LIGHTER can now miss on any stroke, not only the first. A flint is a flint.

### 1.1 — 2026-09-07

HANDLING. Every locked machine can now be picked up before it is bought — one full turn of KNOB, one sheet of SNAP, ZIPPER once each way, three shots on PLUNGER, five strikes of the LIGHTER — and then it goes back in the drawer. No clock: the allowance is the machine's own work, and a fresh launch fills it again.

The service panel is now called SETTINGS, with a proper odometer readout and a tidier layout.

REDEEM A CODE is on the drawer plate, for offer codes.

THE FULL DRAWER, FOREVER costs less than it did.

### 1.0 — 2026-09-01

No release notes.

## Apps similar to KNURL

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| --- | --- | --- | --- |
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| [Interstellar Trader: RPG](https://appshunter.io/ios/app/interstellar-trader-rpg/id6788598604) | — | Free | Games |
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## Related topics

[haptic game](https://appshunter.io/ios/topics/haptic-game)

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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 2026-10-16.*
