Comparison

Octopus Watch vs Octomiser

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Octopus Watch

Easily manage your Octopus Energy tariffs, track electricity rates, and identify optimal times to use appliances or charge your EV. Offers insights into usage, weather impacts, and export earnings. Optional subscription unlocks advanced features like 48-hour rate predictions and carbon integration.

Highlights
  • Track current and upcoming electricity rates
  • Identify cheapest times for appliances/EV charging
  • View historic usage and micro metrics
  • Receive rate change alerts
  • Compare tariffs
  • Export data to CSV
  • 48h Agile rate predictions (subscription)
Features
Read full description

Octopus Watch is the easiest tool to manage the (smart) tariffs provided by Octopus Energy in the UK. Octopus Watch is a paymium app for iOS offering both a standard version as a one-time purchase, and an optional subscription with additional features. Ready to supercharge your savings? Save significantly on your electricity bill, regardless of whether you're on Agile, Go, Cosy, Flux, Tracker, or any fixed tariffs (basic or eco 7). Thinking of joining Agile? Log into the app with just your postcode and check out local rates. If you want to see your consumption history, you'll need an Octopus Energy account and an active smart meter. Please note that support for Intelligent and Intelligent Go is currently limited, with only default off-peak times available. For the latest status on tariff support check out the wiki: https://wiki.smarthound.uk/octopus-watch/tariffs/ . With the standard version of Octopus Watch, you'll have all the tools at your fingertips to effectively manage your tariff: • View your current rates in an instant (including for gas trackers). • View your current electricity rates directly on your Apply Watch! • See all your upcoming rates in an easy chart and table. • Instantly get the cheapest times to run appliances or charge your EV, and save big! • Use the beautiful widget for current and upcoming prices on your home screen. • Receive alerts when the next day's Agile rates are available. • See your historic day-by-day usage. • Use the new micro metrics to quickly see trends in your usage. • See when your meter fails and how much data is missing. • Understand how weather influences your usage. • One tap comparison to see how your tariff compares to Agile, Go, and SVT. • Check your earnings from 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 Agile rate predictions – plan your usage effectively and save even more! • If you have an export meter, also receive Agile export rate predictions. • Access 7-day weather forecasts across Great Britain for even better planning. • Instant notifications when next day's Agile prices fall below your chosen threshold. • Identify optimal half-hour blocks throughout the day to charge your EV or run appliances. • Carbon integration - see your environmental impact both now and in the past. • View your electricity generation regionally or nationally, and adjusted to your usage. • Choose the best slot based on either price or lowest carbon emissions on the grid. • One tap comparison to see how your tariff compares to most smart tariffs. • Advanced micro metrics over 14 or 28 days, including subscription-only metrics. • Day details – see your exact usage along with numerous statistics on a day-by-day basis. • Day details – see exactly which data is missing when your meter stops reporting. • Micro-optimise your usage with half-hour details within the app. • Generate straightforward electricity reports for any period in the last year. • Generate detailed gas reports, including heat pump efficiency information, for the last year. 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 on your Apple Watch 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.

About

Octomiser

Features
Read full description

Transform the way you manage your Octopus Energy with our powerful and intuitive app, crafted exclusively for UK-based Octopus Energy customers. Whether you’re on Agile, Tracker, or any other Octopus tariff, our app empowers you to make smarter energy decisions and maximise your savings. Key Features Real-Time Rate Tracking • Monitor current and upcoming electricity rates, updated every 30 minutes • Enjoy beautifully presented, colour‑coded visualisations that help you identify the best times to use energy • Access comprehensive daily, weekly, and monthly breakdowns of energy rates Smart Usage Optimisation • Discover the most cost-effective periods to run your appliances • Benefit from customisable time windows tailored to your needs • Utilise intelligent rate predictions to plan ahead • Easily compare rates across different time periods Cost Analysis & Savings • Track your historical energy costs with detailed insights • View estimated costs based on your consumption patterns • Analyse usage trends to pinpoint saving opportunities • Export in‑depth reports for your records Personalised Experience • Customise your dashboard to display what matters most • Set personal rate thresholds for timely notifications • Create bespoke widgets for your Home Screen and Lock Screen Powerful Tools & Widgets • Home Screen widgets displaying current and forthcoming rates • Lock Screen complications for instant access • Multiple widget sizes to suit your needs • Real‑time rate updates directly in your widgets Seamless Integration • Enjoy a simple, secure account connection • Experience fast, reliable data synchronisation • Benefit from regular updates featuring new tools and improvements Premium Features (Optional Subscription) • Advanced tariff comparison tools • Detailed savings reports and projections • Enhanced notification options • Priority access to upcoming features Privacy & Security Your privacy is paramount. We do not collect any user data – all information is stored solely on your iPhone and is never transmitted to external servers or third parties. Download now and join thousands of savvy UK energy users who are already saving money with our app. Take control of your energy costs and make informed decisions about your usage today! Note: Some features may require a Premium subscription. An active Octopus Energy account in the UK is required for the best experience. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For questions or feedback, please contact us at octomiser@eugnel.com. Follow us on X: @Octomiser

Screenshots

Octopus Watch4 screens
Octomiser4 screens

Verdict

The call

The clearest difference is device support: Octopus Watch at 3 against Octomiser's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Octopus Watch costs $1.99 and Octomiser $1.99 up front. Octopus Watch sells 2 in-app purchases, starting at $1.99 per month and Octomiser sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Octopus Watch ships an update every 3 weeks, Octomiser fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Octopus Watch versus Octomiser: the parameters behind the verdict, then further details
ParameterOctopus WatchOctomiser
Price$1.99$1.99
Rating4.0 (1 ratings) — better—
Positive reviews64.6% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.1 — better17.0
Further details — not scored
Size19 MB51 MB
Age rating4+4+
DeveloperKim BautersJames TO

In-app purchases

2 purchases

Octopus Watch

Subscriptions2
  • 1 Month Subscription$1.991 Month
  • 1 Year Subscription$11.991 Year
1 purchases

Octomiser

Subscriptions1
  • Octomiser Premium - Monthly$1.991 Month

Questions

Is Octopus Watch free?
Octopus Watch costs $1.99, and also offers in-app purchases.
Is Octomiser free?
Octomiser costs $1.99, and also offers in-app purchases.
Do Octopus Watch or Octomiser have ads?
Neither Octopus Watch nor Octomiser shows ads.
Which is updated more often, Octopus Watch or Octomiser?
Octopus Watch ships an update every 3 weeks, and Octomiser fortnightly. Most recently, Octopus Watch was updated on October 26, 2026 and Octomiser on October 24, 2026.

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