A calmer, less distracting phone

Your Android.Just quieter.

Same apps. A softer look. Turn down the color, bring in a little paper, and make room for what matters.

Get E Ink Mode for Android

Android 10+ · Early access · 10.1 MB

Less visual
noise

A gentler
everyday

More room
to focus

12:45 ▥ ▰

Display Style

A softer perspective.

Color

✓

Muted

Desaturation 50%

A touch of paper.

Warmth. Texture. A slower pace.

A calmer look.
Still your phone.

App screenshot + illustrated style preview

Made for Android

A familiar phone, with a different feel.
Device support varies. Check compatibility

Same apps. A calmer experience.

Your phone.
With the volume
turned down.

Color can be a little loud. Find a softer balance, from gently muted to fully grayscale.

Interactive illustration, not a screen capture.
Actual effects depend on your device and permissions.

Before Original colorAfter 50% desaturated

Illustrated Android home screen before adjusting its color

Illustrated home screen with your preview settings

‹ ›

A softer shade
of everyday. ↖

Find your kind of calm.

A tiny paper studio. Go ahead, play.

Desaturation 50%Paper warmth 35%Paper grain 150%

0 changes

A little less noise. A little more you.

Thoughtful by nature.

A quieter look, without leaving your favorite apps behind.

Less color.
More breathing room.

Choose grayscale or dial in muted colors across supported apps and system surfaces.

Explore display styles

A pace that
feels like yours.

Adjust Android transition speeds. Add paper warmth, grain, patterns and simulated residue.

See how it works

Calm, on
your terms.

Camera and Gallery can keep their colors. A persistent reset action puts you back in control.

Understand the controls

A calmer you

Keep the good.
Quiet the rest.

A familiar phone can feel a little less demanding. Make space for a good book, a thoughtful message, or simply being here.

Same powerful phone.
A more intentional you.

Soft mountain landscape with a person enjoying a quiet moment with a book

A few thoughtful steps

Set up once. Settle in.

Downloading is the beginning. Android needs your permission to change how other apps look.

Start with the app.

Download the early-access APK on an Android 10+ device. Open it and review Android’s installation prompts.

Android may ask you to allow installation from this browser or file manager. You can turn that permission off again afterward. Leave Play Protect enabled.

See the download

This is a developer-signed testing build, not a Play Store release. Device behavior may vary.

A calmer experience starts with clarity

Your permissions.
Clearly explained.

These are powerful Android controls. Read what they do before enabling them. The app can’t apply its effects until the relevant setup is complete.

Required for activation

System display settings

Write Secure Settings lets the app adjust color correction and system transition scales. Grant it through Shizuku or a computer with ADB.

See the ADB option

For users comfortable with Android’s developer tools:

adb shell pm grant com.einkultra.app android.permission.WRITE_SECURE_SETTINGS

This grant alone does not provide intermediate desaturation. Muted colors still need Shizuku.

For paper effects & app rules

Accessibility service

The Scroll & Pacing Engine detects app-window changes and scrolling, so effects can pause in selected apps and residue can build as you browse.

Why Android may show a warning

Accessibility is sensitive access. This build is configured for window/package and scroll events; it does not retrieve window contents or filter keystrokes.

For a sideloaded app, Android may block access with “Restricted setting.” Only if you trust this build, open Android Settings → Apps → E-Ink Ultra → ⋮ → Allow restricted settings, then enable the service. Labels vary by device.

Read Google’s explanation ↗

For texture, warmth & notes

Display over other apps

Allows the paper grain, warmth tint, residue and optional floating note controls to appear above other apps. Protected screens can hide these effects.

What to expect

An overlay is a visual layer, not a new display. It can tint or texture the image, but it cannot turn your OLED or LCD into physical e-paper.

Full native grayscale can also remove the warmth tint’s color. Use muted colors if you want to retain a warm hue.

Required for controls

Notifications & background mode

An ongoing notification keeps Emergency Reset and paper clearing within reach. A foreground service maintains active effects; widget commands may show a short progress notification.

Other optional access

Modify system settings is needed only for the optional refresh-rate cap. Vibration supports optional haptic feedback. Boot access attempts recovery; it does not silently turn reading mode back on.

Your brightness stays yours. E Ink Mode does not change brightness or automatic brightness. This APK has no internet permission; notes and preferences stay on your device. Read the privacy notes ↗

Android, with a little honesty

Made for Android.
Not a promise for every phone.

Designed for Android 10 and newer, across brands. Manufacturers handle display controls differently, so some effects may be unavailable or behave differently on your device.

Android 10+Minimum supported OS. Android 10 Shizuku setup generally needs a computer.

Device-dependent colorMuted colors need Shizuku and supported system controls. Full grayscale uses Android’s native correction.

Early accessAndroid 16 emulator checks and feedback from a Galaxy S24 Ultra. Other models have not all been verified.

Good questions, clear answers

Before you settle in.

Does this turn my screen into real E Ink?

No. It creates an e-paper-inspired appearance on your existing OLED or LCD. Paper grain, shadows and residue are visual simulations, not captured remnants of other apps. There is no promise of e-reader battery savings or medical eye-health benefits.

What is Shizuku, and do I need root?

Shizuku is a separate, free helper that gives authorized apps access to certain Android system operations. Root is not required: Android 11+ can use wireless debugging; Android 10 generally needs a computer. Start it again after a reboot. Intermediate muted colors need it; native grayscale can work without it after the system-settings grant.

Get Shizuku from its official site ↗

What changes when I turn it on?

Depending on what you select, colors may become muted or gray, paper overlays may add warmth and texture, and Android transitions may slow down. Some apps animate independently. Camera and Gallery bypass is on by default; you can edit your app rules. Protected screens may keep their original appearance.

What if I want my normal phone back?

Use Turn off & restore or Emergency Reset in the app or its notification. The app records supported original settings before changing them. Reset before force-stopping or uninstalling: Android does not guarantee cleanup after either action. If recovery needs Shizuku, reconnect it and reset again.

Preview for 15 seconds first. A normal session can stay on until you turn it off, or use a timer.

Why aren’t colors changing in my other apps?

First turn the mode on; choosing a style alone doesn’t activate it. Check Setup for the system-settings grant, overlays, accessibility, notifications and Shizuku connection. Check whether that app is bypassed. Some phones need the display-wide compatibility option for muted colors; unsupported controls may stop activation rather than report success.

What’s new in paper grain and buildup?

Grain shifts at most once per minute while visible. Residue varies between clearing cycles, with a bounded trace cache. Choose automatic clearing after 12, 32, 100, 250, 500 or 1,000 interaction bursts, or choose Manual. Other enabled waveform options may clear earlier.

Residue is a visual simulation, not captured screen content. This build does not add screen recording or screen-capture access.

What about battery use and OLED screens?

Unchanged settings no longer redraw paper. Grain uses a cached texture, periodic checks stop when the screen is off, and widget action animations settle rather than looping continuously.

Battery drain has not been measured on physical phones. Strong pale grain can brighten dark OLED pixels and increase display power. For the lowest overhead, reduce grain and warmth and leave optional flashes and haptics off.

Occasional grain movement is not guaranteed burn-in protection, and Clear paper is not an OLED panel-refresh function. Avoid prolonged static images at high brightness.

Google’s OLED screen guidance ↗

Why can the very top and bottom look different?

The paper layer requests the full available display area, but Android places ordinary overlays below critical system windows. Opaque status and navigation bars may keep their normal appearance. Native full grayscale has broader color coverage; paper texture and partial desaturation cannot be guaranteed over every system surface.

Is this APK a finished Play Store release?

No. Version 1.5.2 is an early-access, developer-signed testing APK using an Android debug signing certificate. It has passed automated checks, but that is not an independent security audit or proof of support for every Android device. Keep important notes exported and review the permissions before installing.

Ready for a calmer phone?

Your Android.
A little more intentional.

Download E Ink Mode and make it your own.

Android 10+Version 1.5.210.1 MB APK

Download for Android

Early-access testing build. Setup requires system-settings access and notifications. Paper effects need overlay and accessibility access; intermediate muted colors need Shizuku. Read the permissions and compatibility notes before installing.

New here? Start with the setup guide

Release details & download integrity

1.5.2 · Paper & widget refinement
Shifting grain, varied residue, clearing intervals up to 1,000 interactions or Manual, and stronger widget transitions that settle after each action. Unchanged settings no longer redraw paper, and periodic checks stop with the screen off. Direct widget controls still work without opening the app. Same app identity as E-Ink Ultra; installs as an update to compatible earlier builds.

SHA-256 cc44589851817a8cb39b64ef425dcb7003fd62825e2debf382fe05bd2fdbb016

Download checksum file ↗

A matching checksum verifies file integrity, not the app’s security. This APK uses a debug signing certificate and is not independently audited.

Same apps.
A calmer you.
Everywhere, a little softer.