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.
From the Zenly team, the original location sharing app loved by 100s of millions of people around the world!
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Bump - real life is happening: map the core Social Networking workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Difficulty in finding friends nearby for events
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited event customization options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor messaging experience
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent event notifications
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
From the Zenly team, the original location sharing app loved by 100s of millions of people around the world! On Bump, create a personal map of your favorite people and places with precise, real-time, and battery friendly location sharing. [Friends] • See who your friends are with, their battery level, speed, and how long they’ve been somewhere • Hear what they’re listening to right now • Save their songs to your own Apple Music or Spotify library without leaving the app • Shake phones to BUMP! and notify friends that you’re hanging out [Places] • Automatically detects the places you go so you can build your personal map • Search for any place, see if your friends have already been, get directions there, or just save it for later • See which bar your friends are at right now or if they’re at home, work, or school • Join your school to see of a directory of everyone there and claim your frat or sorority [Chat] • Drop text, stickers, images, videos, and GIFs in a brand new chat • Start 1:1 convos or group chats directly from the map • See (and even feel!) when friends are in the chat at the same time as you • Don’t just chat — make art — and export your creations [Scratch Map] • Automatically build your own scratch map of everywhere you've been with your phone in your pocket • Compete with friends to uncover 100% of your local area • Keep track of where you’ve spent the night and who was with you [Navigation] • Get the route to join your people or places with Apple Maps or call an Uber straight there • Share your live ETA to your friends’ lockscreen • Buzz your friends when nearby to get their attention [All the extra stuff] • Turn your photos & videos into stickers to send whatever you want • Get notified when friends travel to other states or countries • Join your school to see what music is trending • Use ghost mode to take time off the map • Add location widgets to your home screen to quickly see what friends are up to • Also works for friends who don't have iPhones! • Siri & Shortcuts integration • Free app • Lots more coming soon! Bump has been featured by Apple, TechCrunch, Business Insider, Highsnobiety, Wired and many more. They love Bump and you will too. For questions, feature requests and exclusive merch, drop us a DM on Instagram: @bumpbyamo.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.