App-Entwicklung: Web App Development & PWA

Web App Development& PWA

Not every app needs to be in the store. Progressive Web Apps (PWA) and modern web apps run directly in the browser, can be installed on the home screen and work offline – no download hurdle, no store fees, cross-platform. We develop high-performance web apps and PWAs that feel like native apps and are accessible on any device with just one codebase.

Discuss your web app idea

Challenges you'll recognise

You want users to try the app quickly, but the 'download from the store first' hurdle costs you reach.
You want to serve smartphone, tablet and desktop but can't afford separate builds for each platform.
Every update to your app has to pass the store review before it reaches users – critical fixes are delayed by days as a result.

Services in detail

Good to know

Installable without a store
A PWA is installed via the browser and appears with its own icon on the home screen – without an app store, without a review process and without downloading several hundred megabytes. That significantly lowers the barrier to entry for users.
Offline through service workers
Service workers are the technical heart of every PWA. They cache content intelligently, enable offline use and noticeably speed up repeat visits because resources are kept locally.
Discoverable via search engines
Unlike native apps, web apps are indexable by search engines. A technically clean PWA can be found via Google and thus become an acquisition channel itself – an advantage app-store apps don't have.

Frequently asked questions

What is the difference between a PWA and a native app?

A native app is installed from the app store and runs directly on the operating system. A PWA runs in the browser but can be installed on the home screen like a native app and used offline. PWAs are cheaper, cross-platform and instantly updatable; native apps in turn offer deeper access to some hardware features. Which makes more sense depends on your use case.

Does a PWA work on the iPhone?

Yes. PWAs run on iOS in Safari and can be installed on the home screen. Apple supports core PWA features like service workers and, since recent iOS versions, web push notifications too. Some very specific native features are more restricted on iOS than on Android – we take that into account during the concept phase.

Can a web app work offline?

Yes. Through service workers and caching strategies, already loaded content stays available offline and user inputs are cached. As soon as the connection returns, the app syncs in the background. The offline scope depends on the use case and is defined deliberately.

Does a PWA need an app store?

No. That's one of its biggest advantages: users open the PWA via a link and install it directly. There are optional ways to list a PWA in the stores too, but it's not necessary. You save yourself review processes, store fees and the download hurdle.

Is a web app faster to build than a native app?

As a rule yes, because only one codebase is created for all platforms. You reach smartphone, tablet and desktop at the same time, without separate builds and store releases. With a clearly defined feature set, a PWA is therefore often the fastest and most economical path to an app experience.

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Why nextlevels

Success you can measure

Not every app belongs in the store. We build PWAs that are installable, offline-capable and findable via search engines — a channel that measurably adds reach.

One code, every device
Reachable everywhere from a single codebase.
No store detour
Installable on the home screen — no download hurdle or store fees.
Usable offline
Service workers and caching keep the app running without a connection.
An acquisition channel
Findable via search engines — the app brings new users.

READY FOR YOUR APP THAT SETS NEW STANDARDS?

Whether you want to optimize an existing app or bring a new vision to life – we'd love to meet you. A no-obligation conversation is always a great start.

Paul Kalisch
Executive Partner

info@nextlevels.de +49 (0) 2161 539 71 60

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