Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
Jason Vale’s Juice & Blend
OVER 1 MILLION JASON VALE APPS HAVE NOW BEEN SOLD!
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.8
5 ratings · Top 50%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
JavaScript is required to complete mailbox verification.
Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Jason Vale’s Juice & Blend: map the core Food & Drink workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Offer a wider selection of recipes with user customization features.
Assumption to check: Limited recipe variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Implement a freemium model with select free recipes.
Assumption to check: Subscription model can deter users
Validate with people who use this workflow before building.
Hypothesis 3
Enhance user engagement through detailed reviews and community features.
Assumption to check: Inconsistent user ratings and feedback
Validate with people who use this workflow before building.
Hypothesis 4
Add a favorites feature to easily access preferred recipes.
Assumption to check: Difficulties in tracking favorite recipes
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
OVER 1 MILLION JASON VALE APPS HAVE NOW BEEN SOLD! Lose weight and transform your health with Jason Vale's Juice & Blend 7-Day Reset plan. Taking inspiration from his two decades of experience in this field, Jason has picked his very best plant-based macro-nutrient blends (fat, protein, carbohydrates) and micro-nutrient juices (vitamins, minerals and phytonutrients) and combined them into one revolutionary 7-day plan. The Juice & Blend app brings the Juice & Blend book to life and features everything you need to breeze through the plan, including: - The complete Juice & Blend plan. - Delicious juice & blend recipes. - 'Shake to Shuffle' feature (so you can mix up your own version of the plan, just by shaking your phone!). - Auto-generated shopping list function. - SOS coaching video from Jason. - 'Life After the Plan' audio from Jason. - Reminder alerts. ***** Love, love, love this plan! Feeling invigorated, vibrant, and more energetic, dropped 5lbs too." S DAFFY ***** "I lost 8lbs & 2 inches off waist – by far the best plan, and all of the juices and blends tasted amazing! K HUTCHINSON ABOUT JASON! Jason Vale, also known as the 'Juice Master', has sold over 6 million books, over 1 million apps, made a movie (Super Juice Me!), opened a few health retreats (www.juicemasterretreats.com) and been on a mission to Juice the World for over 20 years! "When it comes to juicing, there's only one man for the job." CAROL VORDERMAN "The King of Juicing." ALESHA DIXON “Jason Vale's approach is all about taking control of your health using common sense and logic. Always delivered with his unique humour and most importantly, easy to apply to your own life.” BEVERLY KNIGHT
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
axios
expo-navigation
react-native-gesture-handler
BUILD KIT DIFFICULTY
Starter
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
