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
Lettura
Lettura is a native FreshRSS reader designed for reading and managing your feeds across Apple devices
$3.99
PRICE
$3.99
No 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 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.
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 Lettura: map the core News 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
Implement an advanced algorithm for content personalization.
Assumption to check: Users struggle to find personalized content
Validate with people who use this workflow before building.
Hypothesis 2
Add offline access to saved articles.
Assumption to check: Limited offline reading capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Integrate text-to-speech for article reading.
Assumption to check: Lack of text-to-speech features
Validate with people who use this workflow before building.
Hypothesis 4
Implement push notifications for important news updates.
Assumption to check: No push notifications for breaking news
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
Lettura is a native FreshRSS reader designed for reading and managing your feeds across Apple devices. It offers extensive customization and a consistent experience on iPhone, iPad, and Mac. FEATURES • FreshRSS synchronization, including starred articles • Sync on launch, in the background, or with pull to refresh • Extract full article content for a cleaner reading experience • Generate AI summaries with a customizable prompt (on-device and with external providers via API) • Automatically mark articles as read while scrolling • Customize the dock with your preferred actions • Configure left and right swipe actions to mark articles as read/unread, star/unstar them, save to Reading List, or open in Safari • Bionic Reading with three different modes • Choose from four customizable fonts • Customize text, article, and interface layouts • Choose whether links open in Safari or within the app • Resume articles from where you left off • Rich embedded previews for X posts, YouTube links, media, and charts • Pure Dark and Midnight Dark appearance modes • Save and restore your settings across devices with iCloud MADE FOR APPLE DEVICES Lettura is built with SwiftUI and adapts to iPhone, iPad, and Mac through Mac Catalyst. App and server settings can optionally be saved to iCloud and restored across your devices. REQUIREMENTS A FreshRSS instance is required (also TTRSS is supported) to synchronize your feeds. Lettura also includes a local Demo Mode, so you can explore the interface without a FreshRSS account. PRIVACY Lettura contains no advertising or analytics. The developer does not collect, sell, or share your personal data.
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
Supabase
react-navigation
axios
react-native-paper
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.
