OctoTracker vs FlexiFone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OctoTracker
Monitor daily and future energy prices for Octopus Tracker customers. Get real-time insights, plan consumption, and visualize price trends. Receive notifications and use widgets for easy access to energy rate information.
- Monitor today's and tomorrow's energy prices
- Real-time price insights
- Price indicator (above/below average)
- 30-day price visualization charts
- Compare rates with standard tariff
- Push notifications for price changes
- iOS home screen widget
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OctoTracker is the essential companion app for Octopus Tracker. This free and privacy-respecting app is your go-to tool for staying on top of today's and tomorrow's energy prices, ensuring you always make the most informed decisions about your electricity and gas consumption. With OctoTracker, effortlessly monitor prices, providing you with real-time insights that matter. The friendly user interface puts today's and tomorrow's energy prices at your fingertips, allowing you to plan your energy usage strategically. OctoTracker features an intuitive indicator that lets you know whether energy prices are above or below the average, allowing you to optimise your energy consumption and save money, all while reducing your environmental footprint. Visualise the last 30 days' prices for electricity and gas with interactive charts, allowing for a more in-depth analysis of energy price trends and compare rates with the standard (Flexible Octopus) tariff. Enable push notifications to receive timely updates on price changes, ensuring you get tomorrow's rates as soon as they're available, or use the iOS home screen widget to keep track of daily Tracker prices without even opening the app. Stay ahead of the curve and take control of your energy costs with OctoTracker. Unlock the power to make smarter energy choices, exclusively for Octopus Tracker customers! Say goodbye to energy price surprises and hello to financial control - OctoTracker has got you covered! NOTE: OctoTracker is an independent app and is not operated by Octopus Energy.
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 review sentiment: OctoTracker at 81% against FlexiFone's 67%. OctoTracker also leads on monetization model (free vs ad-supported). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.
| Parameter | OctoTracker | FlexiFone |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 81.1% of reviews — better | 66.7% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 14.0.0 |
| Further details — not scored | ||
| Size | 28 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Ellis | FlexiFone Telecommunications Limited |
Customer experience
OctoTracker
FlexiFone
In-app purchases
OctoTracker
No in-app purchases
FlexiFone
No in-app purchases








