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.
Harness the power of space and embark on an epic journey of creative destruction with Solar Smash, the ultimate physics-based sandbox simulation game!
Free
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.
Your first Build Kit is free with a verified email.
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.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Harness the power of space and embark on an epic journey of creative destruction with Solar Smash, the ultimate physics-based sandbox simulation game! Simulate the Universe: Control the forces of nature and become a cosmic architect as you explore the boundless expanse of space. Craft and customize your own planetary systems, from the tiniest asteroids to massive gas giants. Two Thrilling Game Modes: Planet Smash: Annihilate planets and moons with over 50 different weapons! Choose from lasers, meteors, nukes, antimatter missiles, UFOs, battleships, space fighters, railguns, black holes, space shibas, orbital ion cannons, supernovas, laser swords, giant monsters, celestial beings, and even defensive weapons like shields and defensive satellites. Destroy everything in your path in both familiar solar systems and exotic star systems with artificial megastructures like ring worlds and giant moons with planetary force fields. Solar System Smash: Dive deep into physics simulations and unleash your creativity in a mode that allows you to play with one of three star systems, including our very own Solar system. Or create your own star systems, complete with planets and set their orbits. Experiment with planetary collisions, create black holes to disrupt orbits, and engage in endless cosmic simulations. Realistic Physics: Experience the breathtaking beauty of scientifically accurate gravitational interactions and celestial mechanics. Witness the awe-inspiring consequences of your every action as you set celestial bodies on collision courses, triggering cataclysmic events that defy imagination. Unleash Your Creativity: It's your universe to shape and reshape! Build, experiment, and destroy to your heart's content. The power to craft worlds or obliterate them is in your hands. What will you create, and what will you obliterate in your quest for cosmic dominance? Destruction Like Never Before: Tear apart planets, cause supernovas, and create black holes that consume everything in their path. Embrace the chaos and experience the visceral satisfaction of witnessing your cosmic masterpieces crumble to dust. Intuitive Controls: Dive into the cosmos with easy-to-use controls designed for both beginners and experienced players. Explore the infinite reaches of the universe and let your imagination run wild. Solar Smash is the ultimate sandbox for those who crave both the creative and the destructive. Are you ready to make your mark on the cosmos? Download Solar Smash now! Indonesia (IGRS) Age Rating: 13+ This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised. Space images credits: NASA's Scientific Visualization Studio NASA's Goddard Space Flight Center Space Telescope Science Institute
Written user reviews are not shown here. Check current App Store reviews >
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.
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.
Not assessed in a Build Kit yet.
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.