EQS Wall
EQS Wall

EQS Wall – Condensation Check

Will your wall stay dry after you insulate it? Draw it layer by layer, pick your place, and see in seconds — with the fix if it fails.

Coming soon to the App Store$29.99

In App Review now. One purchase for iPhone, iPad and Mac.

iPhone and iPad with iOS 16 or later · Mac with macOS 12 or later · Apple silicon and Intel

The wall and its verdict
The wall and its verdict
Why, and what to do
Why, and what to do
The fix, and the temperature through the wall
The fix, and the temperature through the wall
Your place and your room
Your place and your room

Features

Your wall, layer by layer

Start from an example close to yours and change materials and thicknesses with a tap. 67 building materials with typical values; type in your product's data sheet values.

A clear answer

Safe, Acceptable or At risk, with the reason in plain words: where water condenses, how much, in which months, and whether summer dries it out.

And how to fix it

The vapour retarder a wall needs and where, or the insulation that keeps the inside surface free of mould. One tap adds it and shows the new result.

Your exact place

The climate of any place in Europe and North America: by your iPhone's location (it stays on the device) or by coordinates, with the house's elevation. Or one of 221 cities.

Your room, your humidity

From a bedroom to a bathroom; enter the humidity you measured, and see the humidity your wall tolerates and what to do day to day.

The European standards

U-value by EN ISO 6946; mould and condensation by EN ISO 13788, month by month, with the limits of DIN 4108-3. English, German and Romanian.

The app

On the Mac: wall, place and result side by side
On the Mac: wall, place and result side by side
After the fix: safe, month by month
After the fix: safe, month by month

One price, every device

$29.99
once, no subscription · US$29.99 · €34.99 · £29.99
  • iPhone, iPad and Mac with one purchase
  • Free updates of version 1
  • No account, no ads, no tracking
  • Works offline
Coming soon to the App Store

Questions

Who is it for?

Anyone insulating or renovating a house, and the energy auditors, installers and architects who advise them.

Is it a certificate?

No. It is a check by the methods of the European standards that helps you decide. For capillary-active inside insulation or critical cases, ask for a hygrothermal simulation (WUFI, Delphin).

Does it send my location anywhere?

No. The climate data is inside the app; your location only picks the right grid points, on your device. The app makes no internet connection.