CurtainView — Privacy Policy

Last updated: 23 September 2026 · TechnoBlest Inc.

We do not receive any of your data. CurtainView has no server. Your room scans, your fabric photos and your measurements stay on your device and are never sent to us.

The app does show ads, and the ad network collects some data. That part is set out in full below, because it is the honest answer.

What stays on your device

All of it lives in the app's own storage on your phone. Deleting the app deletes all of it. If you turn on “Also keep them in your device's photos”, the original photo is additionally saved to your own photo library — that copy is yours and stays there after the app is removed.

Camera and photos

The camera is used to photograph fabric and to measure your windows. Photo library access is used only to add photos you took or images the app created. The app does not read your photo library.

Ads

CurtainView is free and shows ads through Google AdMob. Google collects the following through its ad SDK inside the app. We never see any of it.

WhatWhy
IP addressUsed to estimate the general location of the device
In-app activity — app launches, taps, video viewsAdvertising and analytics
Diagnostics — crash logs, app launch time, hang rate, energy useAnalytics
Device identifiers, including the advertising IDAdvertising and analytics

How Google uses this is described in How Google uses information from sites or apps that use our services.

Ads are never shown on the screens where you are judging fabric colour. A coloured rectangle next to a fabric swatch changes how that colour looks, which would defeat the point of the app.

Your choices

Children

CurtainView is not directed at children and we do not knowingly collect anything from them.

Changes

If this policy changes, the date at the top changes with it.

Contact

TechnoBlest Inc., Sagamihara, Japan — support@curtainview.app