Octopus Watch is the easiest tool to track and stay on top of smart tariffs provided by Octopus Energy in the UK. Octopus Watch is a paymium app for iPhone, iPad, and Apple Watch offering both a standard version and an optional subscription-only version.

Ready to supercharge your savings?

Use the app to save big on your electricity bill, whether you are on Agile, Go, Go Faster, or Tesla tariffs. To use Octopus Watch and receive up-to-date Agile prices you only need a UK mainland postcode. For tracking of other smart tariffs (Go, Go Faster, Tesla) you need to have an Octopus Energy account. To get access to your historic usage you need to have an Octopus Energy account and an active smart meter.

Octopus Watch offers full support for Agile, Go, Go Faster and Tesla import, as well as full support for Agile, SEG, fixed, and Tesla export. Octopus Watch does NOT support the Octopus Tracker tariff, Intelligent Octopus tariff, or any Eco 7 tariffs. Octopus Watch unofficially supports most fixed tariffs as long as you have an active smart meter. Due to a bug in Apple's Keychain the app at the moment does NOT support the Apple Watch Series 3. Support will be added again as soon as Apple fixes the Keychain bug.

The standard version gives you all the tools you need to track and stay on top of smart tariffs:
• Immediately see the current price (also on Apple Watch!).
• Instantly get the cheapest slot to run appliances, or charge an EV, and save big!
• The app adjusts to the smart tariff you are on (Agile, Go, Go Faster, Tesla).
• Easily set different appliance timers (start at, hours until start, hours until end).
• See all upcoming rates in an easy chart and table.
• Beautiful widget with current and upcoming prices.
• Get a notification as soon as the next day rates are available.
• See your historic day-by-day usage.
• Easily compare savings against standard tariff or Agile/Go (not available if you have an export meter).
• See how much you earned through export (only available with an export meter).
• Various options to change the app defaults to best suit your needs!
• Export cleaned data to CSV for easy use in other apps such as Microsoft® Excel®.

Want even more? A single subscription gets you access to these amazing features:
• Up to 48h rate predictions – better plan your usage and save more!
• Have an export meter? Also get export rate predictions for Agile export.
• Get an instant notification when next day prices drop below a desired threshold.
• See the best half-hour blocks to charge an EV.
• CO2 integration - see your environmental impact both now and in the past.
• See the CO2 fuel composition, both as regional or national, and adjusted to your usage.
• Get the best slot, either based on price or based on lowest CO2.
• Day details – see your exact usage along with numerous statistics on a day-by-day basis.
• Get half-hour details right in the app to micro-optimise your usage.
• Create easy to read single page energy reports for any desired range over the last 4 months.

Thanks to Family Sharing you can install the app on all devices within the same family. Install it on your iPhone for an easy pocket reference, run it from your iPad to see the beautiful rate graph and double column table, or see the current rate with a flick of your wrist with dozens of complications to choose from. The choice is yours! Octopus Watch also supports subscription sharing, so one subscription gives you access to all the extras on all the iPhones and iPads in your household.

What’s New

Version 3.1.5

Welcome to the 3rd version of Octopus Watch! The app now supports all smart tariffs, intelligent Octopus/Go comparison, new login and login sharing, and much more.

update 3.1.5:
• new: improved consistency across all supported iOS versions.
• new: improved startup performance.
• new: various background system updates.

update 3.1.4:
• new: support for the new 2021 Tesla tariff.
• fix: improved background widget updating and 4PM new rates updating.

update 3.1.2, 3.1.3:
• fix: retrieve correct new Go rate for comparison.
• fix: updated dume mode.

update 3.1.1:
• new: support for more account types.
• fix: able to turn off Agile export predictions when current export tariff is not Agile export.
• fix: infographic bars now show correct colours when fully filled.
• fix: update main energy report legend to show colour of lines/bars again.

update 3.1.0:
• new: all new gorgeous infographic added to energy reports (subscription only)! Quickly see your usage patterns explained in detail for any desired period.
• fix: usage reports now cannot start before the earliest date with available consumption data.
• add workaround for erroneous consumption data received from Octopus Energy.
• add workaround for erroneous account data received from Octopus Energy.

update 3.0.4:
• hotfix: prevent issues/crashes due to the variable tariff that changed on 9th April 2021.

update 3.0.3:
• fix slot finder to also use next half hour rate;
• add new day time and night time option to quickly find the best slot;
• potential workaround for issues affecting only the Apple Watch Series 3.

update 3.0.2.:
• fix crash when fetching CO2 data;
• fix wait for next day suggestion.

update 3.0.1:
• add option to always use Agile rates on History tab.

This version comes with the usual improvements as well as:
• a brand new login experience, which is easier than ever;
• easy sharing of login credentials to set up other devices in seconds;
• full support for ALL smart tariffs offered by Octopus Energy;
• intelligent Agile/Go day-by-day comparisons (not available if you have an export meter);
• export information at your fingertips: see your export rates and Agile export rate predictions;
• improved predictions and next day price estimates for your slots.

Ratings and Reviews

4.7 out of 5
364 Ratings

364 Ratings

IisteveiI ,

Edited: Stopped working

Edit: With help from the developer, who has been in touch & very helpful since my original Review, I’m trying to resolve the issues I’ve had which appear to be Octopus Energy’s issues & not the App Developer.

I have re-rated the review from two stars to five in the interests of clarity.

Original Review: The app itself is good but it’s recently stopped working on the last update. The history will no longer load despite the data being visible on the Octopus Energy website. The data is being read from the meter & I can see it if I log into my account but no longer on the app. Initially I started to delete the app & re-install it & this would drag through the data & update the app but recently this has also stopped working.

Developer Response ,

Hi, sorry to hear something is going wrong. Drop me an email at with your account number and API key and I can help you out. There are a myriad of things that can go wrong, but what usually happens is that something goes wrong on Octopus Energy's end when updating your account when switching tariffs. I can help you pinpoint the issue and either help you fix it or point you in the right direction for getting support to resolve the issue from Octopus Energy.

Brian Molson ,

Cracking app for Agile users

Used every day to find the cheapest (and avoid the dearest) electricity prices. Excellent customisable reports, many graphs for geeks to go wild over.

Agile is a great tariff that gets you thinking about using your electricity when it’s less carbon intensive (and therefore cheaper). I find this app an essential companion.

You do have to accept that the Agile tariff remains a beta product and (occasionally) data doesn’t flow correctly from your Smart Meter, which means you might have a gap in your stats. This always resolves in a few days, so just chill out! As always, the last link in the chain before the end user tends to get a kicking when things don’t work - mainly from people who won’t take 5 minutes to read the explanation provided in the app!!!

YOu can't get this free on a Mac... ,

Would be great if it worked.

Unfortunately Octopus don’t seem to be able to see my modern second generation ex-British Gas smart meters, so I have to manually give them a meter reading every month. This is not what I signed up for.

But they still pretend to tell me how much gas and electricity I consume. And charge me £1.99 for an App that will never work.

Their tariffs are cheap, but when it comes to service, or paid-for App, email, phone or Twitter, you certainly get what you pay for.

Edit: The developer has contacted me via this review, for which I am grateful.

Since leaving my review I have been advised that the second generation Smart Meters installed by British Gas go dumb as soon as you leave them. OctopusEnergy didn’t tell me this. This App doesn’t tell you this.

This means that this App will never work as no one can see the data gathered by the meter.

I now have to wait until OctopusEnergy can get round to changing my 4 year old Smart Meters into new ones. What an incredible waste of resources and money.

Presumably, when I leave OctopusEnergy because their customer service is not what it is cracked up to be, I will need to have yet another one... ad fininitum.

It wasn’t clear to me that this was a third party App when I bought it yesterday. If I had know then what I know now, I wouldn’t have bought it, as it will never work unless or until OctopusEnergy replace my meters.

It’s only two quid. But that’s not the point.

Developer Response ,

Hi, this app is not made or supported by Octopus Energy. As a developer I of course depend on the information received through Octopus Energy. This does sadly mean that if you have a broken meter, the app also cannot pull in your data. Keep pushing them though, they should and will eventually fix the meter for you.

App Privacy

The developer, Kim Bauters, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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