Ostrom Energy - Smart & Green
Ostrom Energie - Smart & Grün
Ostrom Energy - Smart & Green gets 100+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Ostrom Energy - Smart & Green is #158 in Utilities Free in Germany and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperOstrom GmbH
CategoryUtilities
PriceFree
Released
Rating★ 4.7 (3.7k)
Version6.1.0
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)100k+ worldwide
Rating
4.7 ★
3.7k ratings
Measured
Best rank now
#158
Utilities FreeMeasured
Ostrom Energy - Smart & Green on the App Store
App details
App ID
1566216511
Publisher
Ostrom GmbH
Content rating
4+
Ostrom Energy - Smart & Green downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Ostrom Energy - Smart & Green's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | UtilitiesFree | #158 |
Apps near Ostrom Energy - Smart & Green on the chart
Utilities Free, around #158.
Ratings
App Store, worldwide.
Rating
4.7 ★
3.7k ratings
Measured
Ratings
3.7k
Measured
About Ostrom Energy - Smart & Green
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 onl
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 onl
Latest updates
6.1.0
- Solar statistics now include a yearly view. Totals are shown below the graph, and tapping a bar shows the value for that hour, day or month.
- Tariff names on contract details are updated and now appear horizontally in the standard font.
- For Check24 and Verivox tariffs with a new customer bonus or an immediate bonus, your bonus is shown directly on your contract, with an explanation via the info icon.
- In charging sessions, we now tell you when we assume grid energy only, because your solar system is not recognized at your contract address.
- Fixes: your selected move-in date is used again at signup, and editing a payment method now shows the correct icon.