Idol
Keep your favorite idol with you — every glance gives you emotional energy.
NFC · E-Ink Phone Case
E-Ink case, reimagined.
Battery-free E-Ink screen you can refresh with a simple tap.
Secure payment · Ships in 24 hours · No subscription required.
Innovation
See your case in action.
Tap with your phone. Instantly refresh the E-Ink display. No battery, always-on, and built for everyday carry.
- NFC-powered, no charging required High-contrast E-Ink screen Personalize with photos
Choose your model
Free shipping worldwide
Why people love it
Designed to look minimal, feel premium, and work seamlessly.
MagSafe Compatible
Keefrash supports MagSafe fast charging.
No Battery Needed
Powered by NFC technology from your phone.
Always On
The image stays on the screen even when detached.
4.0 Inches
Higher resolution and a larger display.
Pets
Display your pet’s cutest moments and keep them with you all day.
Study
Study plans, focus timers, and flashcards stay on display to keep you on track.
Travel
Refresh tickets or route images with a tap — travel becomes simpler and more delightful.
Work
Keep to-dos and meeting highlights always visible — enter work mode at a glance.
Family
Show your family’s photos — every pickup brings a moment of warmth.
Before You Start
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Check your iPhone model
Make sure your iPhone model is listed on the product page as compatible with Keefrash.
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Remove other metal cases
If you are using a metal bumper or magnetic mount, remove it.
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Enable NFC on your iPhone
On iPhone 13 and later, NFC is enabled by default. If you previously removed the NFC Tag Reader, go to Settings → Control Center → add “NFC Tag Reader” to ensure NFC works properly.
How to use
Set it up once in seconds — then change your display anytime with a simple tap.
1
Download Keefrash App
Install the phone case, search “Keefrash” in the App Store, download the app, and open it.
2
Choose or upload an image
Select a photo, illustration, or one of the preset templates, then crop and preview.
3
Refresh with a tap 'Projection'
Refresh the display in just a few seconds.
Technical Specifications
Detailed breakdown
Screen: 4-color E-Ink
Connection: NFC
Connection: NFC
Weight: 40g
Thickness: 3.5mm
Thickness: 3.5mm
FAQ
Common questions
What kind of images look best on the display?
Keefrash’s E-Ink screen supports four colors: black, white, red, and yellow. Images that are closer to these four tones will produce the best visual results. High-contrast images with clear outlines and distinct color blocks tend to display the most beautifully.
Do I need to charge the case?
No. The case is powered by your phone’s NFC only during refresh. The image stays on the E-Ink screen without any battery.