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
Superpowers by SYPartners
Nominated in 2018 for a Webby Award and a Webby People’s Voice Award for Best Lifestyle App.
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
35 ratings · Top 30%
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
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A product spec, screen plans, and build steps for your coding agent.
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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 included16 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 Superpowers by SYPartners: map the core Business 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
Incorporate more diverse activities and exercises.
Assumption to check: Limited content variety for personal development
Validate with people who use this workflow before building.
Hypothesis 2
Add forums or social sharing options.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 3
Offer more flexible payment plans or one-time purchase options.
Assumption to check: High subscription cost for some users
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
Nominated in 2018 for a Webby Award and a Webby People’s Voice Award for Best Lifestyle App. Unlock your superpower. Everyone has one—a unique capability you bring to a team. Something you do better than anyone else. What’s yours? Superpowers is a fun and simple tool designed to help you and your team discover your individual superpowers—and learn how to use them to perform at your best. The next time you have a team kick-off or are preparing for one, try Superpowers. Superpowers distills decades of SYPartners’ team-building research into a playful, fast-moving exercise. Inspired by patterns observed in high-performing teams—where each member’s unique role is made explicit—the cards were refined through real-world consulting and field testing. You can also find physical cards in our store and use them casually or as part of a facilitated team exercise. ______ ABOUT SYPARTNERS Since 1994, SYPartners has helped leaders of some of the world’s most iconic organizations lead into the unknown. Headquartered in New York, with an office in Abu Dhabi, SYPartners is a founding member of kyu. To discover additional publications and tools inspired by SYP’s consulting work, visit our website.
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
Supabase
Zustand
React Navigation
React Native SVG
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.
