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
LLM Chat Client
LLM Chat is the ultimate AI chat client for iPhone, iPad, and Mac
$1.99 · In-app purchases
PRICE
$1.99
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.
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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 included15 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.
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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 LLM Chat Client: map the core Productivity 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 features like conversation threading or context retention.
Assumption to check: Limited interactivity with the LLM compared to other chat apps
Validate with people who use this workflow before building.
Hypothesis 2
Add theme customization and user preferences.
Assumption to check: No customization options for chat themes
Validate with people who use this workflow before building.
Hypothesis 3
Enhance chat history management and retrieval.
Assumption to check: No clear way to access past conversations
Validate with people who use this workflow before building.
Hypothesis 4
Optimize message loading and display with pagination or lazy loading.
Assumption to check: Potential performance issues with large message histories
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
LLM Chat is the ultimate AI chat client for iPhone, iPad, and Mac. Connect to the world's leading AI models — or run them locally on your own hardware — all from one elegant, powerful app. **CHAT WITH ANY AI** • OpenAI: GPT-4o, GPT-4 Turbo, GPT-3.5, and more • Anthropic: Claude 3.5 Sonnet, Claude 3 Opus, Claude 3 Haiku • Ollama: Llama 3, Mistral, CodeLlama, Phi, and any local model • Custom servers: LM Studio, text-generation-webui, vLLM, or any OpenAI-compatible API **PRIVACY FIRST** Your API keys and conversations stay on your device. Connect to local AI models running on your Mac for complete privacy — your data never leaves your network. No accounts required. No tracking. No ads. **POWERFUL CUSTOMIZATION** Fine-tune every conversation with advanced model parameters: • Temperature control for creative or precise responses • Token limits for short answers or detailed explanations • Top-P sampling for response diversity • Frequency and presence penalties to reduce repetition **CUSTOM SYSTEM PROMPTS** Shape how AI responds with customizable system messages. Create an expert coder, a creative writer, a concise assistant, or anything you imagine. Save different personas for different tasks. **REAL-TIME STREAMING** Watch responses appear word-by-word as the AI thinks. Streaming support for all major providers gives you faster, more engaging conversations. **ORGANIZE YOUR THOUGHTS** • Unlimited conversation threads • Automatic chat history • Quick access to recent conversations • Per-conversation settings and system prompts **DESIGNED FOR APPLE** Native SwiftUI interface optimized for iOS, iPadOS, and Mac. Supports Dark Mode, Dynamic Type, and all device orientations. Feels right at home on every Apple device. **PERFECT FOR** • Developers who need quick code assistance • Writers seeking creative inspiration • Researchers exploring ideas • Students learning new concepts • Professionals drafting emails and documents • Anyone curious about AI **FLEXIBLE HOSTING OPTIONS** • Cloud APIs: Use OpenAI or Anthropic's hosted models • Local models: Run Ollama on your Mac for free, private AI • Self-hosted: Connect to your own GPU servers • Hybrid: Mix and match providers as needed **GETTING STARTED** 1. Add your API key for OpenAI or Anthropic, OR 2. Install Ollama on your Mac for free local models 3. Start chatting! No subscription required. Just bring your own API key or local models. --- Questions or feedback? We'd love to hear from you.
Written user reviews are not shown here. Check current App Store reviews >
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
React Native
Expo
Zustand
Axios
React Navigation
BUILD KIT DIFFICULTY
Intermediate
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.
