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
Timeleft: Make New Friends IRL
The friendship app 3M+ users love
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
8,417 ratings · Top 15%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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/
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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 Timeleft: Make New Friends IRL: 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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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
Implement better matching algorithms based on interests.
Assumption to check: Difficulty finding genuine friends in a crowded app.
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate gamification elements and user rewards.
Assumption to check: Low user engagement after initial signup.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance privacy settings and offer clear data policies.
Assumption to check: Privacy concerns over user data.
Validate with people who use this workflow before building.
Hypothesis 4
Add filters and categories for easier event browsing.
Assumption to check: Limited event discovery options.
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
The friendship app 3M+ users love. Timeleft matches you for dinners, drinks, coffee, and runs with like-minded people. No swiping. No planning. Just show up. ▶ HOW IT WORKS ◀ 1. Take the quiz We match you based on personality, not selfies. 2. Book your experience Dinner, drinks, coffee, or a run. Pick your vibe and your neighborhood. 3. Get matched The day of, we reveal your venue and a preview of who you'll meet. 4. Show up & connect Meet your table, skip the small talk, and start building friendships. ▶ FORMATS ◀ Dinners. Every Wednesday with groups of 4-6. Women-Only Dinners. Every Tuesday at 7pm. Timeleft Run. Group runs followed by coffee. Timeleft Coffee. Casual Saturday afternoons. Last Drinks. At a surprise bar after dinner (select cities). ▶ FEATURES ◀ Choose your vibe Join regular Dinners every Wednesday, or Women-Only Dinners on Tuesdays. For something more casual, try Saturday Coffee, low-cost (high-vibe) Drinks, or weekly Runs. In select cities, keep the night going with drinks at a surprise bar after dinner. Curated, not random We match you based on personality, shared interests, and age, creating groups of 4-6 that feel intimate but not awkward. No swiping through profiles. No bios. Just thoughtfully matched tables and curated restaurants for every dietary type. Make it a ritual The first meetup creates a moment, showing up again creates momentum. Use Repeat to invite a connection to your next event, or just keep booking weekly with one-tap rebooking. Consistency turns strangers into friends, and friends into bffs. Stay connected Met someone great? With Connect you can stay in touch with people you clicked with. Bring +1 and watch your social circles expand naturally. And at every table, in-app icebreakers help you skip the small talk and get straight to the good stuff. Thoughtfully designed Live Activity countdowns on your lockscreen before an event. Revamped profile features. Improved onboarding. A completely refreshed app experience. We've made everything smoother, because making friends shouldn't feel like work. Join the movement 3M+ users. 250+ cities. 52 countries. 4.7+ rated on iOS. Women-only dinners available in 50+ cities. This is the friendship app people actually use, and love. Download Timeleft to book your first event! Terms of Use: https://timeleft.com/terms-conditions/
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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
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BUILD KIT DIFFICULTY
Expert
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.
