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
Praktika – AI Language Tutor
Praktika is your AI language tutor for real speaking practice
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
167,753 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 included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 Praktika – AI Language Tutor: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Praktika is your AI language tutor for real speaking practice. Have natural conversations with lifelike AI tutors who listen, respond, and correct you in real time, so you stop memorizing and start speaking. Learn English, Spanish, French, German, Italian, Portuguese (European & Brazilian), Japanese, Korean, Chinese, Arabic, Russian, Polish, and Dutch at any level, from your first word to fluent conversation. WHY PRAKTIKA WORKS Most language apps teach words in isolation. Praktika trains the skill that matters most: speaking. You practice out loud, get instant feedback, and build the confidence to use the language in real life. WHAT YOU GET - AI tutors that feel human: Each tutor has a distinct personality and accent (American, British, Latin American, and more) and adapts to your level, pace, and goals. - Start in your native language: Your tutor explains things in the language you already speak, so beginners never feel lost. - Pronunciation and fluency feedback: Know exactly what to improve after every conversation. - Lessons for every goal: 1,000+ lessons for travel, careers, job interviews, business, everyday conversation, slang, and IELTS and TOEFL prep. - Role-play real situations: Be a tourist, a startup founder, or a sports commentator, and practice the language you'll actually use. - Learn from your own content: Upload photos, PDFs, videos, or voice notes and turn them into a lesson. Snap your surroundings to learn new words, or upload your resume to rehearse interview answers. - Track your progress: Speaking metrics, streaks, and challenges show how far you've come. - Practice anytime, judgment-free: Quick 5-minute chats or deep sessions, 24/7, with a tutor who is always patient. HOW IT WORKS 1. Pick a language and your goal. 2. Choose a tutor and a topic. 3. Start talking and get feedback as you go. TOPICS YOU'LL EXPLORE Travel, food, business, technology, startups, science, health, history, art, cinema, music, football, pop culture, relationships, the environment, and new topics every month. LEARNING FOR YOUR TEAM? Praktika also offers plans for companies. Learn more at praktika.ai/b2b Free to download. Start your first conversation in minutes. Support: [email protected] Terms: https://praktika.ai/terms Privacy: https://praktika.ai/privacy
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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 offline downloads for courses.
Assumption to check: Limited offline capabilities for learning materials.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce gamification elements such as XP and levels.
Assumption to check: Users may find quizzes repetitive.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search and recommendation algorithms.
Assumption to check: Some users struggle with finding relevant courses.
Validate with people who use this workflow before building.
Hypothesis 4
Add community features for users to interact.
Assumption to check: Lack of social features for engagement.
Validate with people who use this workflow before building.
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
Zustand
react-navigation
expo-av
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.
