For years, Apple and Google operated their app stores with the kind of quiet authority that regulators struggled to touch. The 30% commission, the mandatory payment rails, the algorithmic visibility rules — developers just absorbed it. But the Digital Markets, Competition and Consumers Act (DMCC Act), which came into force in late 2024 and is now actively being wielded by the Competition and Markets Authority, has changed the geometry of that relationship. UK app store regulation in 2026 is no longer a theoretical debate. It has teeth, and both Apple and Google already know it.
The CMA designated Apple and Google as firms with Strategic Market Status (SMS) under the Act — a classification that unlocks a set of conduct requirements the regulator can impose without needing to prove a full competition law breach first. That’s a significant shift from how things worked before. The old framework required lengthy market investigations. The new one lets the CMA move faster, set bespoke rules, and fine companies up to 10% of global turnover for non-compliance. For context, 10% of Apple’s global revenue is roughly £36 billion at current exchange rates. That is not a rounding error.
What the CMA is actually targeting
The CMA’s initial focus areas under the DMCC Act are not random. They map directly onto the pain points that UK developers have complained about for the better part of a decade. Three are worth unpacking in detail.
Alternative billing and payment processing. Both Apple and Google currently require developers to use their in-app payment systems for digital goods and subscriptions, which is how the 15-30% commission is extracted. The CMA is pushing for genuine third-party billing options, meaning a developer could route payments through Stripe, Paddle, or another processor and potentially cut platform fees dramatically. For SaaS founders running subscription products, that margin difference compounds quickly.
Sideloading and alternative distribution. Apple has historically been the harder target here, with iOS designed specifically to prevent app installation from outside the App Store. Under pressure from the EU’s Digital Markets Act and now the CMA, Apple has opened limited pathways for alternative app marketplaces, though critics argue the implementation is deliberately cumbersome. The CMA has signalled it wants more genuine openness, not technical compliance dressed up as openness.
Default settings and pre-installation. Google’s agreements with device manufacturers — where Google Search, Chrome, and Play Store come pre-set as defaults — are squarely in the CMA’s crosshairs. For any UK firm building a search product, a browser, or a competing app store, these defaults represent an enormous structural disadvantage that regulation could begin to correct.
Where UK developers actually stand to gain
The immediate beneficiaries of UK app store regulation changes in 2026 are reasonably easy to identify: any developer whose business model involves digital subscriptions, in-app purchases, or competing services that have historically been excluded or disadvantaged on the major platforms.
Subscription SaaS businesses that sell through iOS or Android will be watching the billing provisions most closely. A company doing £2 million a year in App Store revenue at a 30% effective commission rate is handing over £600,000. If alternative billing routes that fee down to, say, 5-8% through a third-party processor, that’s a meaningful slug of cash re-entering the business. Multiply that across hundreds of UK indie developers and small software houses, and you’re looking at a significant aggregate shift in who captures value in the ecosystem.
There’s also a discoverability angle that doesn’t get discussed enough. App store algorithms are notoriously opaque. Developers have long suspected that paying Apple or Google for ad placements within the stores is effectively a prerequisite for visibility — and that the organic ranking system favours platforms’ own products. The DMCC Act’s non-discrimination provisions could force more transparent ranking criteria, which matters enormously for any UK app trying to compete on merit.
The risks and complications for British founders
It would be misleading to frame this entirely as a win for UK developers. There are genuine complications worth thinking through.
First, enforcement takes time. The CMA has the powers, but challenging Apple and Google in practice means legal processes, appeals, and the kind of drawn-out timelines that don’t help a founder who needs clarity this quarter. The CMA’s Digital Markets Unit has grown its headcount substantially, but it is still a relatively small organisation taking on some of the most resourced legal teams on earth.
Second, alternative billing options will only be valuable if users actually use them. Consumer behaviour on iOS in particular is trained to expect Apple’s payment flow. Even if Apple is forced to allow alternative billing, a developer who introduces a non-Apple payment screen may see higher abandonment rates from users who don’t trust it. The behavioural inertia is a real problem.
Third — and this one applies specifically to SaaS founders who distribute across web and mobile — the regulatory changes may create a more complex compliance landscape. If you’re running different billing arrangements on different platforms, your pricing, VAT handling, and terms of service all need to be consistent and watertight. That’s additional operational overhead for lean teams.
The search and discoverability dimension
The CMA’s SMS regime isn’t just about app stores in the narrow sense. Google’s dominance in search means that for many UK businesses, their entire digital visibility strategy flows through a single entity that is now under formal regulatory scrutiny. Developers building web-based products, not just mobile apps, have skin in this game too.
When the default search engine provisions are challenged — and the CMA has made clear that Google’s search defaults on Android devices are a priority area — that opens space for alternatives to gain genuine traction. It’s the same logic that’s driven UK businesses to care more about their visibility across different domains and discovery channels. Firms like Search Engine Tuning, a UK-based digital visibility specialist offering a free SEO check for websites, have seen growing demand from founders wanting to check their SEO position across Google and alternative platforms as the search landscape shifts. Given the regulatory pressure on Google’s default status, understanding how your domains perform independently of Google’s goodwill is increasingly sensible hygiene. Searching for a free seo check at searchenginetuning.co.uk/ is the kind of practical first step businesses take when they stop assuming Google’s algorithm is static.
The DMCC Act effectively forces UK businesses to think about platform diversification more seriously. If Google’s dominance in default settings is eroded even partially, the traffic distribution across the web changes. Any business that hasn’t stress-tested its visibility assumptions is sitting on an unexamined risk.
What the next 18 months actually look like
The CMA’s timeline under the DMCC Act involves setting conduct requirements after a period of consultation and investigation. Apple and Google can engage in the process, and both have already demonstrated a willingness to litigate rather than comply. The CMA will need to be robust.
For UK developers, the practical upshot is to stay engaged with the CMA’s consultations. The regulator has actively sought evidence from developers, and the quality of that evidence influences the shape of the final rules. Organisations like the UKIE (the UK Interactive Entertainment trade body) have been coordinating developer input, and smaller app developers should consider feeding into those channels if they haven’t already.
Beyond the app store mechanics, the broader search and web visibility dimension remains important. Search Engine Tuning’s free seo check tooling, for instance, is increasingly relevant to app developers who also maintain web presences and need to check their SEO footprint across google and across their domains — especially as regulatory changes make it less safe to assume that one platform will always be the dominant discovery channel.
The DMCC Act represents the most significant recalibration of UK digital market power in a generation. Whether it actually delivers the competitive breathing room that British developers have been waiting for depends on how hard the CMA is willing to push, and how creatively Apple and Google choose to resist. My read is that the regulator is more determined than either company expected. The era of consequence-free platform power in the UK is, at minimum, significantly shortened.
Frequently Asked Questions
What is the CMA's Strategic Market Status designation and why does it matter for app developers?
Strategic Market Status (SMS) is a classification under the Digital Markets, Competition and Consumers Act that the CMA can apply to firms with significant and entrenched market power in a specific digital activity. Once designated, the CMA can impose bespoke conduct requirements on those firms without needing to prove a full competition law violation, which makes enforcement considerably faster and more flexible for developers seeking remedies.
Will UK developers be able to use alternative billing systems instead of Apple and Google's payment systems?
The CMA is actively pursuing alternative billing as one of its core remedies under UK app store regulation. Both Apple and Google have faced pressure to allow third-party payment processors, though the practical implementation — including what fees they can still charge and how they can present competing options — is still being worked through regulatory processes in 2026.
What is sideloading and is it legal in the UK?
Sideloading refers to installing apps on a device from outside the official app store, bypassing Apple’s App Store or Google Play. It is not illegal in the UK; the question is whether Apple’s iOS technically permits it. Under regulatory pressure from the CMA and the EU’s Digital Markets Act, Apple has opened limited alternative distribution channels on iOS, though the CMA has signalled it expects more genuine openness than the current implementation provides.
How does the DMCC Act differ from the EU's Digital Markets Act for UK developers?
The EU’s Digital Markets Act applies to firms operating in the EU single market and uses a ‘gatekeeper’ designation framework. The UK’s DMCC Act is independently legislated and uses the Strategic Market Status classification via the CMA. Both target similar behaviours, but the UK regime gives the CMA flexibility to tailor bespoke requirements to specific market dynamics rather than applying uniform rules across all gatekeepers as the DMA does.