Best Apps to Lower Your Bills UK: What Each Can Switch
The apps to lower your bills UK households actually use, what each one can switch, what it costs, and the three free switches that beat every app.
Most of the apps to lower your bills UK households download do one of two jobs, and the marketing rarely tells you which. Some read your bank feed and point at money you are already wasting. Others take over a contract and do the switching admin for you. Neither can conjure a cheaper energy tariff out of a market that does not have one, and the app that promised exactly that, Look After My Bills, was dissolved at Companies House on 4 January 2022. What follows is what each app can genuinely move in August 2026, what it costs, and the three free switching routes that no app can beat.
The honest starting point: what is switchable in 2026
Before any app helps, it is worth knowing which of your bills can actually move:
| Bill | Can you switch? | How |
|---|---|---|
| Energy | Yes, but the price cap compresses the gap | Comparison site or supplier direct |
| Broadband and landline | Yes, in about a day | One Touch Switch, run by the new provider |
| Mobile | Yes, usually same or next working day | Text to Switch codes |
| Current account | Yes, in seven working days | Current Account Switch Service |
| Water | No, not for households in England and Wales | Meter and tariff changes only |
| Council tax | No | Band challenge or discount claim only |
That table explains why bill apps behave the way they do. Water and council tax cannot be switched at all, so an app that claims to cut “all your household bills” is really working on four of them.
Energy is the awkward one. Ofgem’s price cap for 1 July to 30 September 2026 sits at 26.11p per kWh for electricity and 7.33p for gas, with daily standing charges of 57.19p and 29.04p. The cap for October to December 2026 has to be published by 26 August 2026. Fixed deals do undercut the cap, but by far less than they did before 2021, which is why the free auto-switching model collapsed.
Nous: the closest thing to a bills concierge
Nous is the only mainstream UK service that will hold your contract renewal dates and do the legwork on renewal. It covers energy, broadband, mobile and mortgages, and says home and car insurance are coming. You give it your provider and contract details, it tracks the end date, researches the alternatives, and handles the switching paperwork.
The free tier manages two services and one login. Premium is £6.99 a month and lifts the limits to unlimited services and unlimited household logins, adds WhatsApp support and cash rewards. Nous publishes typical savings of £310 a year on free and £960 on Premium, and an average of £534 per member who saves. Read those as marketing averages from self-selecting users, not a forecast for your house.
Who it suits: households with four or more contracts and no appetite for renewal admin. At £6.99 a month you are paying about £84 a year, so the service has to beat that by a clear margin before it is worth the paid tier. If you have two contracts, stay on free.
Snoop: the free bill-watcher
Snoop connects through Open Banking, reads what you actually pay, and flags the bills where a cheaper deal exists, plus forgotten subscriptions and price rises you did not notice. It is free with no paid tier, and it makes its money on referral commission when you switch through it.
The thing most reviews omit: Snoop is not an independent fintech any more. Vanquis Banking Group bought it on 31 July 2023, and the savings products it surfaces come from that group. That does not make its bill alerts wrong, but it does mean you should treat its in-app product suggestions the way you would treat any bank’s. Our full Snoop app review goes through the detail.
Who it suits: almost everyone, because it costs nothing and the price-rise alerts are the part that earns its place. Use it to find the bill, then switch wherever is cheapest rather than through the first link you are shown.
Emma: better at subscriptions than at bills
Emma is a budgeting app that happens to be very good at catching recurring payments, which is where most “hidden” household spending lives. The free account connects two accounts. Emma Plus is £4.99 a month, Pro £9.99 and Ultimate £14.99, with roughly 30 per cent off if you pay annually.
Emma will not switch your energy or broadband. What it does well is show every recurring debit in one list so you can kill the ones you forgot. If that is the job you need, our guides on subscription tracker apps and finding forgotten subscriptions cover it properly, and you may not need to pay for anything.
Comparison apps: Uswitch, MoneySuperMarket and the Confidence Code
For energy specifically, the check that matters is whether a comparison service is signed up to Ofgem’s Confidence Code. It is a voluntary code for independent price comparison sites, and accredited sites have to be independent of suppliers, show the whole market rather than only tariffs they earn commission on, and meet Ofgem’s accuracy standards. If a site or app is not accredited, assume the results are filtered by commission until it proves otherwise.
Comparison apps are worth ten minutes twice a year rather than a permanent place on your home screen. Run one when a fixed deal ends, not weekly.
The three free switches that beat every app
No app is faster or cheaper than these, and all three are free.
Mobile: Text to Switch. Text PAC to 65075 to keep your number, or STAC to 75075 for a new one. Text INFO to 85075 first if you are not sure whether you are still in contract. Your provider has to reply within one minute with the code plus any early termination charge and credit balance. The code is valid for 30 days, and you hand it to the new network rather than ringing anyone to cancel.
Broadband: One Touch Switch. Since 12 September 2024 you contact only the new provider, and it cancels the old service for you. Ofcom reported more than 1.6 million switches through the process in its first year. It covers home broadband and landline moving between wired providers, and does not currently cover business or mobile broadband.
Current account: the Current Account Switch Service. Seven working days, payments redirected, and the switching bonuses are the biggest single-hit saving on this page. See how to switch bank account and the current bank switch offers.
How to run a bills audit in one evening
- Open your banking app and list every direct debit and recurring card payment for the last three months. A free budgeting app does this in a minute, but a spreadsheet works.
- Text INFO to 85075 for every mobile in the house. Any line out of contract is money you are giving away.
- Check your broadband contract end date. If it has passed, you are almost certainly on the out-of-contract price, which is the single most common overpayment in a British household.
- Check your energy tariff end date and compare against the cap using a Confidence Code accredited site.
- Cancel the subscriptions nobody defended in step one.
- Only then decide whether an app is worth paying for. If steps two to five took you an hour and saved a few hundred pounds, you have just proved you do not need to.
The verdict
If you want one free app, use Snoop, because it watches the bills you already pay and costs nothing. If you genuinely will not do renewal admin, Nous Premium at £6.99 a month is the only service that will do it for you across four bill types, and it needs to save you more than about £84 a year to break even. Emma is the pick if subscriptions rather than utilities are your leak. And whichever you choose, the switches themselves are free: PAC, STAC and INFO codes, One Touch Switch and CASS do the actual work, and no app charges you for those.
Frequently asked questions
Which app is best for lowering household bills in the UK? Snoop is the best free option because it reads your real spending and flags bills where a cheaper deal exists at no cost. Nous is the best paid option if you want the renewal admin handled for you across energy, broadband, mobile and mortgage.
Are auto-switching energy apps still available? Not in the old form. Look After My Bills, the best known free auto-switcher, was dissolved on 4 January 2022. The model relied on plenty of cheap tariffs to switch people into, and the price cap era removed most of that margin. Nous is the nearest successor, but it is a managed service rather than automatic switching.
Do bill-switching apps cost anything? Snoop is free with no paid tier and earns referral commission. Nous has a free tier covering two services and a £6.99 a month Premium tier. Emma is free for two connected accounts, then £4.99 to £14.99 a month depending on the plan.
How do I switch mobile provider without ringing to cancel? Text PAC to 65075 to keep your number or STAC to 75075 for a new one. Your provider must reply within a minute with the code and any exit fee. Give the code to the new network within 30 days and it handles the rest.
Can these apps lower my water bill or council tax? No. Households in England and Wales cannot switch water supplier, and council tax is not switchable. The only routes there are a water meter, a council tax band challenge, or claiming a discount or exemption you qualify for.
Is it safe to give a bills app access to my bank account? Apps using Open Banking are read-only and regulated by the FCA, and you can revoke access from your banking app at any time. Check the provider is on the FCA register before connecting. Our guide on whether budgeting apps are safe covers what access actually means.
