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
Pocket CPM
Pocket CPM is a full CP/M-80 emulator for iPhone, putting the legendary operating system that defined a generation of personal computing right in your pocket.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
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.
JavaScript is required to complete mailbox verification.
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 Pocket CPM: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Add more analytics and reporting features.
Assumption to check: Limited features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more streamlined UI with clear categorization.
Assumption to check: User interface may feel cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Integrate cloud storage for project data backup.
Assumption to check: No cloud synchronization
Validate with people who use this workflow before building.
Hypothesis 4
Introduce team collaboration features to enhance usability.
Assumption to check: Lack of collaboration tools
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
Pocket CPM is a full CP/M-80 emulator for iPhone, putting the legendary operating system that defined a generation of personal computing right in your pocket. Whether you're a retrocomputing enthusiast, a developer curious about the roots of modern operating systems, or someone who learned to code on a Z80 machine, Pocket CPM delivers an authentic CP/M experience with the convenience of iOS. What is CP/M? CP/M (Control Program for Microcomputers) was the dominant operating system of the late 1970s and early 1980s, running on millions of machines before MS-DOS reshaped the industry. It introduced concepts that still underpin modern computing — and it's a fascinating system to explore. Features • Full CP/M 2.2 emulation on a Z80 processor • Built-in terminal with adjustable font size • Load and run classic CP/M software and disk images • Hardware keyboard support for a true workstation feel • Monochrome display modes for authentic retro aesthetics • No ads. No subscriptions. Own it once. Who is Pocket CPM for? • Retrocomputing hobbyists and collectors • Computer science students and educators • Developers who want to explore CP/M, BDOS, and BIOS internals • Anyone who remembers the A> prompt with fondness Pocket CPM is lovingly built for those who appreciate where computing came from. Boot up, type A>, and see what the fuss was about.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Victory Native
Axios
AsyncStorage
React Navigation
BUILD KIT DIFFICULTY
Advanced
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.
