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.
In 2025, I first stepped onto the red earth of the Serengeti, and that vast grassland changed me completely
$5.99 · 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 SafariLingo: Safari Guide: map the core Travel 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: Lack of user reviews or ratings can deter new users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited content may not keep users engaged
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Users may find navigation confusing if not intuitive
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases may not be clearly communicated
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.
In 2025, I first stepped onto the red earth of the Serengeti, and that vast grassland changed me completely. I saw prides of lions, the wildebeest migration, and beautiful birds—yet I felt deeply powerless: I couldn’t properly record my sightings, remember the names, or reach any knowledge offline. In that moment, I decided to create Safari Lingo: an app that breaks down the barriers of language and connectivity, so that every lover of the grasslands can truly “read” this magical land. 【Safari Lingo: Your Ultimate Grassland Encyclopedia】 SafariLingo = Safari (the journey into the wild) + Lingo (language) Our mission: with 300+ animal species, rich information, and powerful filtering tools, to make the “language of the journey into the wild” something everyone can understand. 1. A Vast Database × Powerful Filters: Find the animal you want in seconds It covers almost every mammal, bird, and reptile of the Serengeti—virtually everything you might encounter on your Safari. Filter by animal type, sighting status, and the Big Five; sort by initial letter or rarity level; and pinpoint your target in an instant. 2. In-Depth Animal Information: The leap from “recognizing” to “understanding”! Every animal has a detailed profile, including: taxonomic information (class, order, family), physical traits and key identification points, ecology and behavior (habitat, diet, activity), conservation information (IUCN status), an observation guide, and professional photography tips. You can even play real animal calls and get to know the grassland through your ears. 3. Record the Trail of Your Sightings Spotted an animal you love? A single tap lets you record the place, time, and photos. The app can automatically read the location from your photos’ EXIF data, or you can manually log your current GPS position. It also automatically tallies how many species you’ve discovered and creates your very own Safari diary, so you can easily share your adventures with friends after you return home. 4. Achievement System and Statistics Review your sighting overview and your unlocking progress in each category, generate a personalized achievement poster, and share it with a single tap—capturing the one-of-a-kind story between you and the grassland. 5. Support for 9 Languages English, Chinese, Hindi, Spanish, French, Arabic, German, Japanese, and Korean. All your multilingual needs met at once. 【Special Thanks】 We extend our heartfelt gratitude to: • Mara Nature Center - For the professional guidance and the rich animal knowledge base they provided, which made this app possible. • Steve - Perhaps the finest guide in the Serengeti. It was his passion, his expertise, and his deep love for the grassland that let me understand this land more profoundly in every thrilling moment. Safari Lingo could not have been born without his inspiration. • Yu Junfeng - Scientific expedition leader for Chinese National Geography. He corrected a great many data-accuracy issues, making the product far more scientific.
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.