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
Salt & Straw
Welcome to Salt & Straw Loyalty
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
402 ratings · Top 5%
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.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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.
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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 Salt & Straw: 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.
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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
Include more customizable features like mix-and-match options.
Assumption to check: Limited customization options for flavors and orders
Validate with people who use this workflow before building.
Hypothesis 2
Optimize backend and caching mechanisms for better performance.
Assumption to check: Inconsistent loading times during peak hours
Validate with people who use this workflow before building.
Hypothesis 3
Add sharing features to allow users to share their favorite flavors on social media.
Assumption to check: No social sharing options for favorite flavors
Validate with people who use this workflow before building.
Hypothesis 4
Implement a rewards program to encourage repeat customers.
Assumption to check: Lack of loyalty rewards for frequent orders
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
Welcome to Salt & Straw Loyalty Craft Made. Curiously Delicious Ice Cream. Our loyalty program is here to make your ice cream runs even more magical. Earn 1 point for every $1 you spend and unlock delicious rewards—like free waffle cones, scoops, birthday cake discounts, and surprise offers you won’t want to miss. Here’s what you get with the app: Tasty Rewards – Turn every purchase into points and cash them in for cones, scoops, and more. Order Ahead – Order your scoops and pay right in the app. Pickup your prepaid order directly from the pint freezer. Celebrate You – Get $10 off any ice cream cake on your birthday. One-Tap Reordering – Got a favorite? Reorder it in seconds. Tell Us Everything – Share your thoughts with a tap and help us get better with every scoop. Terms & conditions apply. We’re Salt & Straw. We make ice cream with big heart, using ingredients that tell a story. There’s something new every month, so keep your spoon ready.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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
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BUILD KIT DIFFICULTY
Intermediate
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.
