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Android Apps > House & Home > Ostrom Energy - Smart & Green
Ostrom Energy - Smart & Green icon

Ostrom Energy - Smart & Green

by Ostrom GmbH · House & Home · Free
On Google Play since August 2021 · Data updated 2026-11-09

Ostrom Energy - Smart & Green is made and published by Ostrom GmbH. AppBrain is an independent app data site and isn't affiliated with Ostrom GmbH. The app name, icon, screenshots and description belong to Ostrom GmbH and are shown as published on Google Play.

3.93
2,718 reviews
100,000+
Downloads
Free

Electricity: Digital & Fair at Cost Price. All in English. Cancel any time.

Ostrom Energy - Smart & Green Screenshot 1 of 9
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Ostrom Energy - Smart & Green Screenshot 9 of 9
Screenshots by Ostrom GmbH, from the Google Play listing
View on Google Play

AppBrain's verdict

EstablishedTop 10
Rating on Google Play
3.93
2,718 ratings
Installs
240 thousand
Last updated
October 27, 2026
Ads
No ads
Size
90.4 MB

Ostrom Energy - Smart & Green has 240 thousand installs. Users are divided: 3.9 stars from 2,718 ratings. Its best ranking is #7 in Top Free, House & Home in Germany.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Ostrom Energy - Smart & Green for Android

★★★★★ Ahmed Ali · Jun 30, 2026
I don't understand the negative reviews. I have been with Ostrom for 3 months now, and they are very helpful when it comes to customer service. The registration was a very easy process. My only problem what it took them almost a month to provide me electricity, but other than this, it is all good.
★★★★☆ StevoKiwo · Dec 22, 2023
Generally happy with the service, although I feel like there should be an Ostrom lite app without all the smart home and electric car functions. I live in an old apartment without a car and can't use any of these functions. The app for my needs feels very cluttered. Or instead of a lite app, a functions setting menu, that allows to activate or deactivate certain functions, which will hide them from appearing throughout the app, making the app way less cluttered. Please 🙏
★★★★★ MydniteXll · Aug 19, 2023
I appreciate the customer service here. Also, that everything is in english hehe, you make my life easier living in germany. Thank you!
★☆☆☆☆ M S · Nov 10, 2025
This app is really bad. I had a contract with ostrom to supply electricity from next year onwards. But they revoked the contract without informing me, but the app kept showing me the status "waiting for delivery." It's only when I tried to install the app on a second device it showed me the updated status of "contract revoked." Customer support is a joke as well. When I contacted it, the AI bot said that I (customer) revoked the contract from the app? When? Why? No info!
★☆☆☆☆ Sundas Sallar · Oct 23, 2026
can't update meter reading in recent update, when the keyboard opens. The dialog hides behind that
★☆☆☆☆ Sebastian De La Parra · Jan 10, 2025
I tried every method to contact Ostrom, so I can get my bill checked. One day in the app a random meter reading for 9000 kWh in November in a 35 m² apartment, when my yearly consumption in the last 2 YEARS was below 2000!!!!! Not only that, but I'm sick of sending emails and not having a response. Of course, I canceled my contract, but it's just ridiculous how an "energy" company doesn't have a support line! Don't fall for this SCAM! I naively did because it was an "English-speaking provider".

Google Play Rating history and histogram

1.7K
0
390
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390

Store listing

By Ostrom GmbH, from Google Play
Description by Ostrom GmbH Written by the developer, not by AppBrain. Click to read.
Save up to 35% or up to 500 € on your energy bill annually! Ostrom is a smart green energy provider with a flexible monthly subscription that can be canceled anytime. Access our app in English or German!

As part of the Ostrom family, you gain full access to the Ostrom app, your one-stop solution to track your energy consumption, payments, CO₂ emissions saved, and more.

YOUR POWER USAGE

Use our app to understand your electricity usage compared to your monthly payments. Keep it updated by regularly adding your meter readings.

SMART METER & DYNAMIC TARIFF

Do you have a smart meter? We enable you to easily track your energy consumption hourly and get billed at the current hourly rate.

BILLING MANAGEMENT

Experienced a surge in power usage this month? Fine-tune your monthly deposit directly within the app, steering clear of any end-of-year additional charges. Browse through all your invoices, payments, and customize your payment method – all under one roof.

FRIENDLY SUPPORT

Our dedicated team is at your service in the chat. Connect with us through the app for exceptional customer service with lightning-fast response times.

CONNECT SMART DEVICES

Connect your Heating, Ventilation, or Air Conditioning (HVAC) to the Ostrom app to easily schedule & adjust your temperature and mode.

CHARGE YOUR EV EFFICIENTLY

Charge your electric vehicle during the cheapest, greenest hours with full transparency. Set the time you need your EV ready, and it will charge when prices are best.

OUR VIRTUAL POWER PLANT NEOGRID

Save not only on charging your EV with our "Smart Charging" feature – become part of our Virtual Power Plant (VPP) named NeoGrid and get paid for charging! By optimizing the purchase and sale of electricity, the Virtual Power Plant provides the electricity grid with flexibility and thus generates additional income - which we will pay out to all participants.

REFERRAL PROGRAM

Get your exclusive referral code, share it with your friends, and watch your referral bonuses grow. For each successful referral, you get 50 € credited to your invoice or 100 € credit to use in the Ostrom Store — your choice!

SHOP IN THE OSTROM STORE

The Ostrom Store has smart home devices, heating, e-mobility & more! Get a discount on products with the referral credit in your Wallet.

ENJOY PARTNER PERKS

As our valued customer, you can enjoy perks and benefits from our partner companies.

DISCOVER SOLAR PV PARTNERS

Ostrom partners with reputable solar photovoltaic providers to help bring the power of the sun to your home.

GREEN FOOTPRINT

Witness your positive environmental impact resulting from the switch to sustainable energy, and observe it magnify as you bring more individuals on board the Ostrom journey.

JOIN US NOW

Not a member of the Ostrom community yet? No worries! Sign-up takes just 5 minutes, and we'll manage all the administrative tasks, including notifying your previous provider.

Get smart and make the green switch today with Ostrom!

Disclaimer:
Our app is only available for smartphones, as we focus on optimizing the experience for the most commonly used devices. This allows us to dedicate resources to innovative features and improvements for our users.

Recent changes:
- Under Contract, you can see the withdrawal button.
- During sign-up, you can enter a yearly usage up to 99.999 kWh.
- The button to redeem your bonus stays hidden while your contract is not active yet and when your contract has expired and the final invoice has already been created.
- The price graph shows an electricity price of 0 correctly. The independent meter help opens again when you add a solar inverter. On Android, the meter reading field stays visible above the keyboard.

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
?
App size
90.4 MB
Content rating
Everyone

Technologies used by Ostrom Energy - Smart & Green

31 permissions
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
6.4.0
Launched
August 2021
  • Oct 27, 2026UpdateVersion 6.4.0
  • Oct 21, 2026UpdateVersion 6.3.2
  • Sep 30, 2026UpdateVersion 6.2.0
  • Sep 17, 2026UpdateVersion 6.1.0
  • Aug 20, 2026UpdateVersion 5.59.0
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
7.5 thousand
Per day
250
30-day average
Play install range
100+ thousand
Launched
August 2021

Installs over time

Ostrom Energy - Smart & Green has been installed 240 thousand times. Over the past 30 days, it averaged 250 installs per day.

Rankings

Google Play top charts
Highest rank
#7
Chart
Top Free
House & Home
Country
Germany

Google Play Rankings for Ostrom Energy - Smart & Green

Top rankings

Rank Country Category List
7 Germany House & Home Top Free
Show all market rankings

Ranking history in Germany

About the app and developer

About Ostrom Energy - Smart & Green

Ostrom Energy - Smart & Green is a house & home app developed by Ostrom GmbH.

How many times has Ostrom Energy - Smart & Green been installed?

Ostrom Energy - Smart & Green has been installed 240 thousand times. In the last 30 days, the app was installed 7.5 thousand times. It is ranked #7 in house & home.

What is the rating of Ostrom Energy - Smart & Green?

Ostrom Energy - Smart & Green is rated 3.93 out of 5 stars, based on 2.7 thousand ratings.

Is Ostrom Energy - Smart & Green free?

Ostrom Energy - Smart & Green is free. The app size is 90.43 MB. The latest version available is 6.4.0. The last update was on October 27, 2026.

What are the requirements for Ostrom Energy - Smart & Green?

The app has a content rating of Everyone. The app has been available on Google Play since August 2021.

App Performance Report

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Developer information for Ostrom GmbH

Ostrom GmbH

hallo@ostrom.de

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Frequently asked questions about Ostrom Energy - Smart & Green

Is Ostrom Energy - Smart & Green free?

Yes. Ostrom Energy - Smart & Green is free on Google Play.

Is Ostrom Energy - Smart & Green still available?

Yes. Ostrom Energy - Smart & Green is on Google Play, and the last update we saw was on October 27, 2026.

Does Ostrom Energy - Smart & Green contain ads?

No. Google Play does not list Ostrom Energy - Smart & Green as containing ads.

How large is Ostrom Energy - Smart & Green?

Ostrom Energy - Smart & Green is 90.43 MB.

Is Ostrom Energy - Smart & Green suitable for children?

Google Play rates the content of Ostrom Energy - Smart & Green as suitable for everyone.

How many times has Ostrom Energy - Smart & Green been installed?

Google Play lists 100,000+ installs for Ostrom Energy - Smart & Green.

How do people rate Ostrom Energy - Smart & Green?

Ostrom Energy - Smart & Green scores 3.93 out of 5 stars, from 2,718 ratings on Google Play.

Who made Ostrom Energy - Smart & Green?

Ostrom Energy - Smart & Green was developed by Ostrom GmbH. It is listed in the house & home category on Google Play.

What are the best alternatives to Ostrom Energy - Smart & Green?

People looking at Ostrom Energy - Smart & Green also look at these house & home apps: Yuno Energy, Saudi Energy, ScottishPower - Your Energy, Elekt - Your Energy Watchdog, Meter Reading: Utility Tracker.

Share Ostrom Energy - Smart & Green

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