Slipper – Save money on power
by Slipper AS
- Utilities
- Free
- Rating
- 4.3
- 203 ratings
- Top 48%among 50 Utilities apps
- Last update
- Sep 30, 2026
- Version 26.09.02
- Size
- 85 MB
- Category
- Utilities
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Many people pay too much for electricity without even knowing it. Slipper automatically checks your electricity plan and lets you know when you can save.
More than 113,000 Norwegians use Slipper – saving an average of NOK 3,581 per year.
YOU DON’T HAVE TO KEEP TRACK
Many cheap electricity plans are introductory offers that become more expensive after 3–12 months. Slipper monitors your plan, compares it with the alternatives based on your actual electricity usage, and notifies you when switching can save you money.
MORE OVERVIEW. LESS TO THINK ABOUT.
- See electricity prices hour by hour, including grid fees
- Track your electricity usage with data from Elhub
- See how much you’ve saved with Slipper
- Get help choosing between Norgespris and the standard electricity subsidy
- Connect smart devices and earn money from the electricity you already use – automatically
INDEPENDENT. ALWAYS ON YOUR SIDE.
- We always recommend the electricity plan that’s cheapest for you
- No ads
- We never sell your data
Try it free for 14 days. Download Slipper and see how much you could save.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://slipper.no/personvern
What’s new
Release notes for the latest version, as written by the developer.
- Much easier to switch electricity contracts – autofill for order forms
- Grid Rewards – you can now see if your home is in an active Grid Rewards period
- Smart Energy Control – see your total controllable power, how controllable your home is and which devices contribute to the different smart control features
- a couple of small technical improvements and bug fixes
Rank history
Daily position in the Norway charts. #1 is at the top.
- Best rank
- #3
- Current rank
- #3
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
73/100
Not flagged as small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size– · 20
No data, weight redistributed
- App size60% · 10
Size: 85 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof50% · 30
Best rank #3, 1 country
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 26.09.02LatestReleased Sep 30, 2026