Screen Marker Assist

In-app purchases
Content rating
Everyone
50+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
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About this app

Screen Marker Assist is a screen annotation app that lets you draw lines and marks over other apps while keeping them visible.

There are no annoying ads.

Clearly highlight important areas during document explanations, screen sharing, app tutorials, online meetings, presentations, and more.

【Main features】

・Draw lines and marks over other apps
・Clear all annotations at once
・Quickly switch between drawing mode and normal screen operation
・Control the app from a floating button at the edge of the screen
・Available in Japanese and English

【Features available in the free version】

The free version lets you draw on the screen using a black line with medium thickness.

No ads are displayed in the free version.

【About the Pro version】

Upgrade to the Pro version with an in-app purchase to change the line color, thickness, and opacity, and freely move the floating edge button to your preferred position.

The Pro version is a one-time purchase, not a subscription.

【How to use】

1.Open the app
2.Allow permission to display over other apps
3.Start drawing mode from the floating button
4.Drag your finger across the screen to draw lines and marks
5.Tap “Back” to clear the annotations and return to normal screen operation

【Recommended uses】

・Highlight important areas while sharing your screen
・Explain how to use a smartphone or app
・Make online meetings and presentations easier to understand
・Emphasize part of a document or image on the spot
・Use annotated screenshots to clearly show areas that need changes or clarification
・Point out specific areas when asking an AI assistant for help or giving instructions

【Important notes】

This app does not change the standard Android mouse pointer or system cursor.

While drawing mode is active, drawing takes priority, so you cannot tap or scroll the app displayed underneath.

To return to normal screen operation, tap “Back” in the floating menu.
Draw over other apps. Great for explanations, screen sharing, and presentations.
Updated on
Jul 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Initial release of Screen Marker Assist.
A simple, ad-free screen annotation app for drawing lines and marks over other apps.
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
斉藤勇志
shibuyasenritsu@gmail.com
七栄578−11 グランテラス102号室 富里市, 千葉県 286-0221 Japan