How Many Rolls of Wallpaper Do I Need?

Download on the App Store

How the ‘focal wall’ App Works

1. Launching the App

When you open the app, you are greeted with the app’s splash screen, featuring the app name Focal Wall.

2. Entering Room Information

On the main interface, you start by entering basic room details:

  • Person’s Name: This helps personalize the results.
  • Room Name: You can specify which room you’re working on, like “Bedroom” or “Living Room”.

You can also toggle between Roll Sizes or Manufacturers depending on your needs:

  • Roll Sizes: Allows you to choose between various wallpaper roll sizes.
  • Manufacturers: Select from wallpaper manufacturers such as Milton & King, Phillip Jeffries, Thibaut, Cole & Son, Graham & Brown, Schumacher and many more to come.

image of 20.5inch, 27inch, 36inch, 54inch wallpaper width sizes on the focal wall app

3. Selecting Wallpaper Options

After entering room details, you can choose specific wallpaper characteristics:

  • Manufacturer: Choose the brand of wallpaper you are using.
  • Pattern: Select the desired pattern from the manufacturer’s collection.

You can also switch between using metric units or imperial units based on your preference.

screenshot of focal wall app selection of wallpaper manufacturers

4. LiDAR Scanning the Walls

Once the room and wallpaper details are set, the app offers a ‘focal Scan’ button to start scanning your room. The LiDAR Scanner will detect walls and calculate their dimensions.

image of the 'focal Scan' LiDAR technology working on the focal wall app. Scanning walls for measurements.

5. Displaying Results

After scanning the room and calculating wall measurements, the app presents the total wall area and the amount of wallpaper required. It breaks down the results into:

  • Total Wall Area: Displays the size of the wall in square feet or meters.
  • Rolls Required: Specifies how many wallpaper rolls are needed for the selected pattern and manufacturer.

You can see the wall measurements for individual walls, and the results are presented clearly in a list.

6. Saving to Notes & Sending via Email

The app provides an option to send the results via email or save to Notes. The email includes:

  • Room details such as the name and selected wallpaper pattern, 3d model jpeg and pictures of the walls.
  • Total wall area and the number of wallpaper rolls required for both US and UK roll sizes.
  • An App Store badge, linking back to the Focal Wall app.

Screenshot of focal wall app saving wallpaper measurements to Apple Notes

Screenshot of the focal wall app sending results via Email

Focal Wall – Frequently Asked Questions

1. Is the app free?

Yes. The app is free to download and lets you try up to 2 free scans or 2 free calculations before reaching the paywall.


2. What happens after my free scans or calculations?

Once you’ve used your free allowance, you’ll need to subscribe to continue using all features.

Subscription options:

  • Weekly Plan: $2.99 per week

  • Annual Plan: $12.99 per year


3. How do I subscribe?

When you reach the paywall, select a plan and confirm your purchase through Apple’s in-app purchase system.
You’ll see:

  • A clear price and plan description

  • The “Double-click to Subscribe” screen

  • Face ID or Touch ID confirmation

You’ll then receive a receipt email from Apple.


4. Can I subscribe by accident?

No. Apple requires manual confirmation (double-click + Face ID / Touch ID). Subscriptions cannot be activated automatically or accidentally.


5. How do I cancel my subscription?

To cancel or manage your subscription:

  • On your iPhone, go to Settings → [your name] → Subscriptions → Focal Wall → Cancel Subscription.


6. Can I get a refund?

All billing and refunds are handled by Apple, not Focal Wall.
If you believe you made a purchase in error, please visit:
👉 https://support.apple.com/billing


7. What features are included with a subscription?

  • LiDAR measuring + 3D labels

  • Wallpaper & paint calculators

  • Save/load unlimited projects

  • Roll estimates by brand or pattern


8. I didn’t get charged, but the app locked me out.

You may have reached your free limit (2 scans or 2 calculations). To continue, choose a subscription plan through the paywall.


9. Who handles my payment info?

Only Apple processes payments. Focal Wall never sees or stores your payment details.


10. How do I restore a purchase?

If you’ve reinstalled the app or changed devices, tap Restore Purchases on the subscription screen.



Privacy Policy for the focal wall app

Effective Date:May 12, 2024

This privacy policy (“Policy”) describes how the mobile application focal wall (“we”, “us”, or “our”) handles information in relation to the operation of the focal wall app (the “App”). This Policy applies to users (“you”) of the App.

1. Information We Do Not Collect

The focal wall app does not collect, store, or share any personal information, location data, or any other data related to its users. As the App does not require any user registration, no personal data is collected at any point.

2. No Third-Party Data Sharing

Since no data is collected, no data is shared with third parties.

3. No Third-Party Services

The App does not employ third-party services that have access to information about users.

4. Security

We are committed to ensuring that the App remains secure and that no data is collected from our users. Consequently, there are no risks of data breaches or security issues related to personal data since none is collected.

5. Children’s Privacy

The App does not collect information from anyone under the age of 13. The App is also not designed to attract anyone under the age of 13.

6. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. Thus, you are advised to review this page periodically for any changes. We will notify you of any changes by posting the new Privacy Policy on this page. These changes are effective immediately after they are posted on this page.

7. Contact Us

If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us at barrybernau@gmail.com.