Octopus Watch vs FlexiFone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Octopus Watch
This app helps Octopus Energy customers in the UK manage their smart tariffs and save on electricity bills. It provides real-time rate information, upcoming prices, and personalized alerts for optimal energy usage.
- View current and upcoming electricity rates
- Get cheapest times for appliances/EV charging
- Home screen widget for prices
- Alerts for next-day Agile rates
- Historic day-by-day usage
- Export cleaned data to CSV
- 48h Agile rate predictions (subscription)
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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. The app fully supports Intelligent Go. 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.
FlexiFone
This app provides a Multi-Network eSIM for seamless access to major UK networks, ensuring the best coverage wherever you are. You can maintain your primary number while using the eSIM for data, with automatic switching to the strongest signal.
- Multi-Network eSIM access
- Automatic network switching
- Best coverage in UK
- Keep primary number
- Data-focused eSIM
- Physical SIM option
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FlexiFone enables you to get a Multi-Network eSIM which would enable you to access EE, O2, Vodafone & Three's network in the UK. This means that you will always have the best network coverage across the UK. Best part about this is that you can keep your current or primary number, and use the FlexiFone eSIM for data. Your eSIM / SIM will automatically connect to the cellular network with the strongest signal, hence enabling you to have the best coverage even in the countryside, and dense city centers. We do offer Physical-SIMs as well, if you do not have an eSIM-enabled device. Getting started is simple, just download the app, select a plan, and setup your eSIM / Physical-SIM and you're good to go!
Screenshots
Verdict
The clearest difference is price: FlexiFone at Free against Octopus Watch's $1.99. FlexiFone also leads on in-app purchases (none vs 2) and iOS requirement (14.0.0 vs 16.1). Octopus Watch's advantage is update cadence (every 3 weeks vs every 2 months). On review sentiment, 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
FlexiFone is free to download; Octopus Watch costs $1.99 up front. Octopus Watch sells 2 in-app purchases, starting at $1.99 per month. FlexiFone asks for nothing beyond the download.
Octopus Watch ships an update every 3 weeks, FlexiFone every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Octopus Watch | FlexiFone |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 64.6% of reviews | 66.7% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 16.1 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Kim Bauters | FlexiFone Telecommunications Limited |
Customer experience
Octopus Watch
FlexiFone
In-app purchases
Octopus Watch
- 1 Month Subscription$1.991 Month
- 1 Year Subscription$11.991 Year
FlexiFone
No in-app purchases








