Professional app consulting for decisions that last
You have an app idea you want to bring to market with intent?
Our app consulting gets you to a decision in two steps: first we measure whether there is demand for your idea, then we settle concept and MVP. The result is a decision basis on which we start – or say no, with reasons.
The most expensive mistakes happen before the first line of code
Most app projects don't fail in development but in the market: 43 percent of startups that failed since 2023 name a lack of product-market fit as the cause (CB Insights, 2026). They also fail because of decisions made before development started – on assumptions instead of data.
The scope is too big. An idea becomes a wish list, and the wish list becomes a cost block you can't or won't approve.
The technology doesn't match the goal. Native, cross-platform or web app – the call is often made on gut feeling and costs many times more to correct later.
The budget doesn't hold up. An estimate without a defined scope isn't an estimate, it's a hope.
Legal requirements arrive too late. GDPR, accessibility under the European Accessibility Act, store guidelines and – depending on the use case – MDR or the EU AI Act shape the architecture, not the design.
Nobody ran the business case. Without assumptions about users, conversion and cost per user, every app is a gut feeling with an invoice attached.
App consulting costs a fraction of development – and prevents exactly the mistakes that make a project most expensive.
From idea to app in 3 steps
Two consulting steps, then development. Each step ends with a decision on whether the next one makes sense. You start where you are: if demand is already proven, you begin straight at step 2.
Validate the idea
Will anyone pay for it? With a smoke test – landing page, visible prices, paid traffic – we measure demand before budget is committed. Result within a few weeks: go, pivot or no-go.
Already have paying users, a waiting list or test results? Then skip this step.
Concept & MVP definition
What does version 1 have to do, with which technology, at what cost and under which legal requirements?
Workshop and analysis produce your app blueprint: scope, technology recommendation, cost range, timeline and risks – the decision basis for step 3.
Development
With the blueprint we start building: an MVP first if that makes sense, then the path to the full product - or the complete product straight away.
We credit the full consulting fee against the app development.
Want to know whether and how best to turn your app idea into reality? In a free intro call we work out which step you are at – and whether you need a consulting engagement at all.
Book a free intro callThe result: certainty
& app blueprint
Each consulting step ends with something you can hold in your hand: after step 1 you know whether there is demand. After step 2 you have the document you decide with internally. Not a slide deck to forget.
Step 1: certainty
Measured conversion after seeing the price – plan clicks, signups, pre-orders – against thresholds set in advance.
What a prospect costs through paid advertising: the first real data point for your business case.
Five to ten short interviews with people who signed up explain what the funnel alone cannot.
Go, pivot or no-go – in writing, with reasoning and the measured figures. On a go: a waiting list of genuine prospects for launch.
Step 2: your app blueprint
Prioritised into version 1, version 2 and „deliberately not“.
Platform, architecture and reasoning – including the alternatives and what they would mean.
Effort per module with ranges and named cost drivers.
Realistic duration to MVP and to full product, store review times included.
Your core flows as an interactive prototype for user tests and pitches.
Open items, dependencies and legal requirements – each with an owner.
Build it, build it differently, or don't. With reasons.
Fair is fair: if you go on to build with us, we credit the full consulting fee against the project. And the blueprint is yours either way – including if you take it to another agency.
When app consulting makes sense – and when it doesn't
We don't sell consulting you don't need. Naming both sides honestly saves everyone time.
Success stories
with measurable results
GUTEFRAGE.NET / HIGHFIVVE
Largest German-language question-and-answer portal
Anyone looking for an app development agency will be delighted with Johnny Bytes. We held a workshop with gutefrage.net on the topic of apps and app SDKs and had a very in-depth and detailed exchange. The knowledge and experience that Johnny Bytes brings to the table is remarkable.
Nepomuk Seiler
JUST HEALTH GMBH
Therapy management platform for leading German cancer centres
Johnny Bytes was a complete game-changer for our digital health app. Their expertise is outstanding; they got up to speed in record time and drove our development forward with decisive technical insights. We absolutely recommend them for any complex app project.
Maximilian Roederstein
EMPOWER GMBH
World-leading provider of Microsoft Office applications
In the development of our software suite, we faced complex challenges. Johnny Bytes provided more than just strategic advice; they actively supported our development process and were decisive in its successful execution.
Stephan Kuhnert
APOTHEKE LUX 99
Leading pharmacy for medical cannabis
We wanted more than just an off-the-shelf e-prescription app; we needed a solution perfectly tailored to our pharmacy's specific workflows. Johnny Bytes' expertise in digital health was clear as they understood and executed our vision in perfect detail. The result is our very own app, which is a tremendous asset for both our customers and our team. For anyone seeking a truly custom solution, you've come to the right place.
Tobias Loder
READFY
Pioneer and leader in ad-supported e-book readers
With Readfy, up to half a million users regularly read over 130,000 ebooks for free. Johnny Bytes took over the apps for iOS and Android from our previous nearshore partner and not only brought them and the backend up to date in a very short time, but also ensured that in-app sales increased by 500%.
Philipp Ortmaier
PAGOPACE
Leading provider of NFC payment rings.
We were already able to offer our customers good hardware with our payment ring. However, Johnny Bytes helped us to build the perfect complementary software to take our product to the next level. We were kept up to date at every stage of the app development and were able to make requests immediately. With the new app, we can also sell our rings in retail stores, as customers can link their rings directly to their payment card on their cell phone.
Steffen Kirilmaz
FIRST AVENUE
#1 media house in South Tyrol
Johnny Bytes has taken over the development and support of our guest information system TIPPTHEK and migrated it to a modern and sustainable architecture in a very short time. This allows us to install TIPPTHEK in thousands of South Tyrolean accommodations and provide up to 35,000 tourists a day with personalized information about their accommodation and the surrounding area.
Michael Hölzl
STAZZLE
Innovative solutions for temporary staffing and recruitment
An agile team for whom customer satisfaction is just as important as quality, the Johnny Bytes team understands communication and requirements, asks the right questions, has a sense of humor and adheres perfectly to schedules. A strong partner that we recommend without reservation. Thank you for your support!
Tasso Mitsarakis
KOOPERATIONEN MIT HOCHSCHULEN
Innovative projects with research institutions
Together with Johnny Bytes, FH Aachen regularly conducts practice-oriented research projects as part of the Digital Lab. Most recently, prototypes for Alexa skills and AI-supported tourism solutions were created in this context. These projects are always an enrichment for our students, the university and the company.
Prof. Dr. Mathias Eggert
Decide with confidence before you invest
Technology choice, architecture or vendor: get an independent assessment. The first conversation is non-binding and free of charge.
Your personal contact
Would you rather talk to us directly and in person? Then do not hesitate to get in touch with us.
