Independent Apps First

Independent iPhone and iPad apps with calm product thinking.

I design and ship my own iOS apps for investors and everyday life. They are the core of my work and the clearest proof of how I build focused Apple products.

Explore Apps Selected Collaboration

Independent products first. Selected collaboration on request. No affiliation with or representation of any employer.

Own Apps

A growing portfolio of independent iPhone and iPad apps built around clear audiences, specific use cases, and focused product decisions.

Apple Quality

Native iOS work with close attention to clarity, pacing, App Store readiness, and a calm user experience.

Selective Work

Collaboration is limited and best suited to well-defined products with real user value and a clear scope.

Own products first

My apps are the core of the business, not side projects around client work. They show most clearly how I think about product strategy, UX, and shipping.

Products as proof

Every shipped app is both portfolio and proof: real positioning, real release quality, and clear user-facing outcomes in the App Store.

Own Apps

Focused iOS products, built and shipped independently

Each app is made for a specific audience, solves a concrete problem, and shows how I approach clarity, utility, and release quality on Apple platforms.

LiquidityPulse

For macro-minded investors, market watchers, and Bitcoin-focused users: LiquidityPulse turns liquidity, market stress, and regime shifts into a clearer daily read so you can interpret conditions faster and make better-informed decisions.

For Macro Investors

Built for people who follow liquidity, risk, and market regime changes as part of their process.

Clearer Context

See important shifts faster without digging through a noisy stack of disconnected charts.

Practical Use

Especially useful for people who want a calmer way to track macro signals and market pressure.

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Product Website ↗

MoneyMindShift

Money Mindset

For people who want to understand their relationship with money. MoneyMindShift combines a money type assessment, a 6-pot system, and a daily mindset habit in one private app.

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Erfolgsjournal

Daily Reflection

For people who want to see progress, not just tasks. Erfolgsjournal turns quick daily reflection into a calmer and more consistent habit.

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Lebensrad

Values & Life Balance

For anyone who wants a clearer view of life areas, values, and next steps. Lebensrad combines the wheel, a values compass, goals, reflections, and reviews in one private app.

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FitnessGoals

Training Focus

For people who want training structure without clutter. FitnessGoals helps you set targets, stay consistent, and keep momentum over time.

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MyVideoSpace

Video Library

For people with too many saved videos and not enough structure. MyVideoSpace keeps watchlists, collections, and personal libraries easy to return to.

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Jürgen Zimmer

Indie iOS developer from Munich.
I build my own apps from positioning and UX to native development and App Store release. That product work also shapes the way I approach the occasional collaboration: calm, selective, and outcome-focused.

Selected Collaboration

Available for a small number of well-matched projects

I occasionally support independent founders, focused product teams, and clear iPhone or iPad app ideas when the fit is unusually strong. My own apps stay in the foreground, so collaboration is selective, limited, and by request.

Clear audience

Best fit for products with a specific user, a concrete use case, and a reason to exist beyond a vague app idea.

Focused scope

Strongest when the first version can stay disciplined, useful, and realistic instead of trying to do everything at once.

High product bar

A good match when product thinking, calm UX, and polished Apple execution matter as much as raw feature delivery.

Selective availability

I only take on a small number of collaborations, so I look for projects where scope, timing, and working style align well.

Request selected collaboration

Share a few details about your product, audience, and scope. I will let you know if there is a strong fit for a selective collaboration.

Check Collaboration Fit