How Do App Makers Earn Money: 5 Proven UK Strategies in 2026

According to Business of Apps, Android and iOS app consumer spending reached $166.8 billion globally in 2025, growing 11.1% year on year. The UK sits among the highest-spending app markets in the world, with mobile commerce penetration hitting 30.6% according to Mordor Intelligence.

Yet the overwhelming majority of apps on the Google Play Store and Apple App Store cost nothing to download. That gap between “free to use” and “generates serious revenue” is exactly what most people misunderstand about how do app makers earn money, and closing that gap is what separates a hobby project from a sustainable UK digital business.

In-App Advertising: The Highest-Volume Model

In-app advertising is the most widely used monetisation method in the app economy. Developers integrate an ad network, most commonly Google AdMob or Meta Audience Network, and earn revenue each time a user views or interacts with an ad unit. The formats range from banner ads displayed at the bottom of a screen to rewarded video ads that give users in-game currency or premium content in exchange for watching a 30-second clip.

The effective CPM (cost per thousand impressions) varies significantly by format and audience. Rewarded video typically achieves the highest eCPM because users opt in actively. For a UK-based app with an engaged audience, rewarded video eCPMs can reach £8 to £20 per thousand impressions through AdMob, making it meaningfully more valuable than banner placements, which often fall below £1. The maths behind this matters before you build anything: an app with 100,000 daily active users watching one rewarded video each at £10 eCPM generates roughly £1,000 per day.

The practical risk is user experience. Intrusive advertising at the wrong moment, mid-sentence in a reading app, for example, causes uninstalls faster than almost any other friction point. Apps that generate long-term ad income treat placement and frequency as a product decision, not an afterthought.

For anyone building the commercial infrastructure around a digital product, the how to start an online business in 2026 framework applies directly here: the monetisation model must be chosen before the product is designed, not bolted on after launch.

Subscriptions: The Model That Compounds

Subscription revenue has overtaken other models for non-gaming apps. According to Business of Apps, subscription revenue in the app economy reached $66.8 billion globally in 2024, with 73% of that coming from iOS users. The freemium-to-subscription pathway is now the standard approach for productivity tools, fitness apps, language learning platforms, and media apps.

The model works as follows: the core app is free, giving users genuine value immediately. A subset of features, typically the ones that become essential once a user is committed to the product, sit behind a weekly, monthly, or annual paywall. Duolingo, Headspace, and Calm all use this structure. The conversion rate from free to paid on well-optimised subscription apps runs between 2% and 5%, according to Adapty’s industry data across thousands of apps.

For UK developers, the Apple App Store and Google Play both take a 30% commission on subscription revenue in the first year, dropping to 15% after the first year of a subscriber’s tenure. Developers earning under $1 million annually qualify for the Apple Small Business Program, which reduces the commission to 15% from the start. Google mirrors this structure on the first $1 million of annual revenue. These are real costs that must sit inside any UK app revenue model before claiming a profit figure.

In-App Purchases: The Gaming and Lifestyle Engine

In-app purchases (IAPs) account for close to 50% of all mobile app revenue globally, according to data cited by Syndicode. The model is clearest in gaming: users download a free game and spend on cosmetic items, additional lives, power-ups, or progression shortcuts. Honour of Kings generated $1.86 billion in IAP revenue in 2024 alone, according to Business of Apps.

Outside gaming, IAPs function differently. A photo-editing app might sell individual filter packs. A recipe platform might sell premium meal plan collections. A navigation tool might sell offline map regions. The critical difference between sustainable IAP revenue and a one-time cash spike is whether the purchase delivers ongoing perceived value rather than removing an artificial limitation.

UK consumer law applies to all in-app purchases. The Consumer Rights Act 2015 and the Digital Markets, Competition and Consumers Act 2024 both create obligations around refunds, misrepresentation, and subscription cancellations for digital goods sold to UK consumers. Any app generating meaningful IAP revenue in the UK needs these legal realities built into the user flow and terms, not added as a legal disclaimer months later.

Affiliate Marketing and Sponsorship: The Underused Revenue Layer

This is the model most developers never seriously consider, yet it suits a wide range of UK app categories particularly well. Affiliate marketing inside an app means embedding trackable links or offers for third-party products and earning a commission when users complete an action, whether a sign-up, purchase, or trial. A UK personal finance app recommending a current account through a cashback affiliate network, or a fitness app linking to protein supplements through an affiliate programme, can generate meaningful secondary income without any additional development.

The commission rates available through UK affiliate networks such as Awin, which operates one of the largest affiliate networks in the UK, vary from 2% on financial products to 20% or more on software subscriptions. An app with a clearly defined audience and a well-matched affiliate offer outperforms generic advertising in terms of revenue per user because intent is higher.

Sponsorship is the higher-commitment version of this model. A brand pays a flat fee to have their product or service featured within the app experience. This works best when the app has a specific, engaged audience demographic that a UK brand wants to reach directly. Fitness apps, parenting tools, and professional development apps attract sponsor interest at scale that smaller ad networks never match.

For UK founders who are also building adjacent revenue streams, the mobile business ideas that pay in the UK piece covers how product-based and service-based businesses can integrate app income alongside physical channels.

The Freemium Model: Combining Everything Into One Product

The freemium model is not a separate revenue stream. It is the container that most successful apps use to combine advertising, subscriptions, and in-app purchases into a single coherent product. According to data cited across multiple industry sources including Adapty and Business of Apps, 98% of global mobile app revenue comes from freemium apps rather than paid-download models. The free tier acquires users at scale. The paid tier, whether subscription, IAP, or both, converts the fraction of that user base willing to pay.

The freemium conversion question is where most UK developers underinvest. The distance between a free user and a paying user is almost always a product problem, not a marketing problem. If the free tier delivers so much value that users have no reason to upgrade, conversion rates collapse regardless of how much is spent on user acquisition.

The practical framework is to design the free tier to create genuine need for the paid tier rather than simply restricting features arbitrarily. A task management app that lets you create unlimited tasks but limits collaboration to one user hits the right inflection point: personal users stay free, teams pay. This is how do app makers earn money at scale without losing the user base that makes the product viable in the first place.

Anyone building the operational foundations for an app-based UK online business should read the how to start an online business from home UK piece alongside understanding the revenue mechanics, because registration, tax obligations, and HMRC requirements apply to app income in the same way they apply to any other UK trading activity. App earnings above £1,000 in a tax year must be declared under Self Assessment.

Frequently Asked Questions

How do free app developers make money? Free app developers monetise through in-app advertising, subscriptions, in-app purchases, affiliate partnerships, and sponsorship deals. Most profitable apps use a freemium structure that combines several of these streams rather than relying on a single source.

How much money can an app make? This varies enormously by category and monetisation model. Apps in the top 200 on the App Store earn approximately $82,500 per day, according to TekRevol’s analysis, while a solo-developer utility app with 10,000 active users might generate £500 to £2,000 per month through a combination of AdMob and a subscription tier.

How do app makers earn money without ads? The most common ad-free revenue models are subscriptions, in-app purchases, affiliate commissions, and one-time paid downloads. Subscription-based apps tend to generate the most predictable long-term income without displaying a single ad.

Do app makers get paid per download? Only if the app is listed as a paid download, in which case the developer receives the download price minus the app store commission (15% to 30% depending on the platform and revenue tier). Free apps generate nothing per download, relying instead on post-install monetisation.

What percentage do app stores take from developers? Both Apple and Google charge 30% on in-app purchases and paid downloads as standard. This drops to 15% for developers earning under $1 million annually through the Small Business Programs on both platforms, and Google charges a flat 15% on subscription revenue regardless of earnings level.

Final Thoughts

From my experience working with UK digital product founders, the most common error is choosing a monetisation model after the app is already built, rather than designing the product around it from day one. The subscription model produces the most predictable and compounding income for most non-gaming apps, but it only works if the free tier is genuinely useful and the paid tier is genuinely necessary.

For UK developers specifically, the data privacy obligations that sit underneath any app that collects user data are non-negotiable and directly affect what monetisation models are legally available. The Information Commissioner’s Office publishes clear guidance on consent-based app monetisation models under UK GDPR, and any app serving UK users that relies on personal data for advertising revenue must read it before going live.