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
Klara – Patient communication
Thousands of healthcare teams across more than 40 specialties connect with and care for their patients using Klara’s secure messaging and telemedicine solution because it’s convenient and accessible to patients with n...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
12,873 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/
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 Klara – Patient communication: map the core Medical 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 caching and optimized data fetching with React Query.
Assumption to check: Users experience slow loading times for messages and appointments.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set custom notification preferences.
Assumption to check: Limited customization options for notifications.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance navigation with breadcrumb trails or back navigation options.
Assumption to check: Difficult to navigate back to previous screens.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the explanation of premium features and the benefits of subscription.
Assumption to check: In-app purchases can be confusing.
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
Thousands of healthcare teams across more than 40 specialties connect with and care for their patients using Klara’s secure messaging and telemedicine solution because it’s convenient and accessible to patients with no login, password, or download required—ever. With Klara, practices grow by providing patients with the convenient experience they demand while making their operations more efficient. Customer support is available in-app or by email at [email protected]. FOR PROVIDERS (Patients, see below) With Klara, you can: 1. Provide your patients with excellent care no matter where they are through secure messaging and video visits 2. Communicate directly with patients, team members, and external providers 3. Whatever you’re sending — messages, documents, photos, or eForms — it’s all secure and HIPAA-compliant 4. Respond to texts, voicemails, website messages in one central place 5. Assign messages to your colleagues for quick responses 6. Send eForms for patients to fill out digitally 7. Automate routine patient outreach to patients before and after their appointments, including reminders, pre-visit instructions, post-visit follow-up, etc. 8. And more! You need a Klara account to use this app. Sign up for a free demo on our website. FOR PATIENTS Download the Klara app to connect with your doctor and other healthcare providers over secure messaging and video visits. You can also access Klara by going to patient.klara.com and entering your mobile phone number. Your healthcare provider must use Klara for you to use this app. If they’re not already using Klara, ask them to sign up today!
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
Supabase
React Navigation
Axios
React Query
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.
