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The Fermentation Journal
UpworkLUNot specifiedintermediate
Android App DevelopmentMobile App DevelopmentHybrid App DevelopmentUX & UI DesignFlutterApp DevelopmentAI App DevelopmentAI Agent DevelopmentAI DevelopmentiOSiOS DevelopmentSwiftUINative AppReact NativeApp Design
I’m looking for a developer to build the first MVP version of a mobile app called “The Fermentation Journal”.
The goal is to create a clean and simple app that helps users track sourdough starters and basic fermentation logs.
I already built a rough prototype, and now want to turn it into a proper mobile app (iOS + Android).
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PROJECT GOAL
Build a minimal but well-designed MVP with a strong focus on usability.
The app should feel calm, clean, and easy to use in everyday situations (e.g. in the kitchen).
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CORE FEATURES (MVP)
1. SIMPLE TRACKING
Users can create entries with:
• notes
• optional inputs (e.g. temperature, ratio)
• timestamp
• optional photo
Entries should appear in a clean timeline view.
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2. BASIC CATEGORIES
Users can organize entries into simple categories such as:
• sourdough starter
• fermentation projects
(No complex structure needed for now)
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3. SIMPLE ESTIMATION FEATURE
A very basic estimation feature:
Based on simple inputs (time, temperature, ratio), the app gives a rough estimate like:
“Likely ready in X hours”
This should be based on simple logic, not AI.
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TECHNICAL DIRECTION
• Flutter preferred
• iOS + Android
• Local storage only
• No accounts
• No backend
Keep everything lightweight and efficient.
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GOAL
Create a fast, clean MVP that can be expanded later.
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TIMELINE
Ideally 1–3 weeks
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WHAT I’M LOOKING FOR
• Someone who understands clean UI/UX
• Someone who can keep things simple and efficient
• Clear communication
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When applying, please answer:
1. How would you approach building this as efficiently as possible?
2. Have you built something similar before?
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