
Mikheil Doroshenko
Worth company ever, never sign contract with them. I was customer myself an now after two year when I changed to other provider, the send me bill (saying it's recalculate value) without any information, explanation where and how they did the calculation...) took money from my account, and now when I go to customer service I constantly, already longer than one month get mails, that I have to wait before they prove my claim. Don't do this mistake, never sign contract with them!
Yello Strom GmbH
April 14, 2026
We’re sorry to hear about the difficulties you’ve experienced! We’d like to look into your issue in detail and help you resolve it as quickly as possible. Please send us a message via our social media channels or an email to online@yello.de, and we’ll sort it out for you.
Best regards from the Yello Team

Kate Scholes
Since the latest update (from kWhapp to Yello) the user experience is now very poor. By default, when I enter my meter reading, it defaults to the contract from my previous home, which ended 7 months ago. I can't hide that old contract or make my current contract the default. It's very confusing. The menu has less functionality than before. And the icons aren't obvious to help manually enter the meter reading. Please fix this, it's painful to use with this current version.
4 people found this review helpful
Yello Strom GmbH
June 27, 2023
Hey Kate, we are aware of the incorrect representation of the contracts and we are already working on the solution! Please write to apps@yello.de and we will keep you up to date. Greetings, Vanessa

Gara Huseynov
Accordong to my contract, I have 166 kwh allowance for Strom monthly. Even though I am using less energy, app says that I will get Nachzahlung at the end of the year. The same problem occurs with Gas as well. Cant understand the logic of the app. I have written an email as well, but they could not give me a clear answer. No idea what is the purpose of this app.
11 people found this review helpful
Yello Strom GmbH
August 31, 2020
Hello Bin Binis, I’m glad you’re writing. Thank you for your feedback. The Calculation in kWhapp is based on several principles. I’ll be happy to help you. Let’s settle your case together. Please write us an e-mail to apps@yello.de. Greetings from Cologne