Comparison

Octopus Watch vs Screen Sizer

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

Screen Sizer

Features
Read full description

Find out the size of any TV or screen, select either screen size or enter the available dimensions and the app will show you what screen will fit. Then view the screen in AR in location. Very useful app for sizing both TVs and large projector screens. Allows for standard 16:9 widescreen or 21:9 and 16:10 ratios

Screenshots

Octopus Watch4 screens
Screen Sizer3 screens

Verdict

The call

The clearest difference is in-app purchases: Screen Sizer at none against Octopus Watch's 2. Octopus Watch's advantage is iOS requirement (16.1 vs 26.2). On price, ads and device support 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 Screen Sizer $1.99 up front. Octopus Watch sells 2 in-app purchases, starting at $1.99 per month. Screen Sizer asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Octopus Watch versus Screen Sizer: the parameters behind the verdict, then further details
ParameterOctopus WatchScreen Sizer
Price$1.99$1.99
Rating4.0 (1 ratings) — better—
Positive reviews64.6% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.1 — better26.2
Further details — not scored
Size18 MB4 MB
Age rating4+4+
DeveloperKim BautersElectric Orange

In-app purchases

2 purchases

Octopus Watch

Subscriptions2
  • 1 Month Subscription$1.991 Month
  • 1 Year Subscription$11.991 Year
None

Screen Sizer

No in-app purchases

Questions

Is Octopus Watch free?
Octopus Watch costs $1.99, and also offers in-app purchases.
Is Screen Sizer free?
Screen Sizer costs $1.99, with no in-app purchases.
Do Octopus Watch or Screen Sizer have ads?
Neither Octopus Watch nor Screen Sizer shows ads.

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