Ferrum Flow app icon
For iPhone & iPad · Tactile

Your screen, magnetic.

Thousands of metallic flakes surge toward your finger and align along invisible field lines. Release, and they drift quietly back. Feel the pull.

Download on theApp Store See it work →
Ferrum Flow
Iron-filing magnet toy · feel the pull
iPhone · iPad · Free with optional Premium
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Your screen is magnetic.

Thousands of metallic flakes scatter across a dark canvas. Touch the screen and watch them surge toward your finger, shimmering as they align along invisible field lines. Release, and they drift quietly back.

Eight metallic finishes.

Five free palettes to start. Three more unlock with a single purchase.

Silver
FREE
Gold
FREE
Copper
FREE
Bright Silver
FREE
Bronze
FREE
Obsidian
PREMIUM
Holographic
PREMIUM
Rose Gold
PREMIUM

Tune every detail.

Adjust the basics for free. Unlock premium features once and keep them forever.

Magnet power

Four levels from gentle to extreme. Control how aggressively flakes respond to your touch.

Flake density

From a sparse scatter of 600 to a dense carpet of 5,000 metallic flakes filling your screen.

Repel mode PREMIUM

Reverse the polarity. Push flakes away instead of pulling them in.

Multi-touch PREMIUM

Two simultaneous magnets. Use both fingers to sculpt the field.

Glow trails PREMIUM

Luminous trails streak behind moving flakes, tracing the flow of the magnetic field.

Gravity mode PREMIUM

Tilt your device and watch flakes drift with real-world gravity using the accelerometer.

One purchase. Yours forever.

Premium unlocks Obsidian, Holographic, and Rose Gold finishes, plus Repel Mode, Multi-Touch, Glow Trails, and Gravity Mode. No subscription. No recurring charges.

Common questions.

What is Ferrum Flow?

A tactile magnet simulator for iPhone and iPad. Thousands of metallic flakes scatter across a dark canvas. When you touch the screen, they surge toward your finger and align along invisible magnetic field lines — then drift quietly back when you let go.

What's included for free?

Five metallic finishes (Silver, Gold, Copper, Bright Silver, Bronze), adjustable magnet power, and adjustable flake density. You can use Ferrum Flow as a satisfying touch toy with no purchase needed.

What does Premium unlock?

Three additional metallic finishes (Obsidian, Holographic, Rose Gold), Repel Mode to push flakes away, Multi-Touch for two simultaneous magnets, Glow Trails behind moving flakes, and Gravity Mode that tilts the field with your device.

Does Ferrum Flow collect any data?

No. Ferrum Flow runs entirely on your device. It does not collect personal information, track your location, use analytics or advertising frameworks, send data to external servers, or require an account. The accelerometer reading used by Gravity Mode is processed locally in real time and never recorded or transmitted.

Is it safe for children?

Yes. Ferrum Flow does not collect data from anyone, including children, and is safe for users of all ages.

Get in touch.

Questions, feedback, or a finish you'd love to see? I'd love to hear from you.

Contact me

Usually a reply within 1–2 business days.

Feel the pull.

Free download. iPhone & iPad.

Download on theApp Store