App Overview

Jakdojade Premium icon

Jakdojade Premium

CITY-NAV sp. z o.o. · Travel

The official jakdojade.pl app for iOS - an essential application for all public transport passengers in Polish cities

$8.99 · In-app purchases

PRICE
$8.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.5
222 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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A product spec, screen plans, and build steps for your coding agent.

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What's included20 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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Jakdojade Premium: map the core Travel 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 real-time traffic updates and alternative route suggestions.

Assumption to check: Difficulties in route planning during peak hours

Validate with people who use this workflow before building.

Hypothesis 2

Add offline mode with saved routes and stops.

Assumption to check: Limited offline capabilities

Validate with people who use this workflow before building.

Hypothesis 3

Offer a free trial and compare features between free and premium versions clearly.

Assumption to check: Inconsistent user reviews on subscription value

Validate with people who use this workflow before building.

Hypothesis 4

Enhance onboarding experience with guided tutorials.

Assumption to check: Confusing UI for new users

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

The official jakdojade.pl app for iOS - an essential application for all public transport passengers in Polish cities. Thanks to the app, you can easily check the timetable and buy a ticket. Travel easy and fun Jakdojade is: • trip planner for intercity train connections in Poland • current public transport timetables (ZTM, MPK, MZK, SKM, PKP, …) • the most accurate and popular search engine of public transport connections • convenient buying of public transport tickets (available in selected cities) • real-time feature - shows the actual location of buses and trams (available in selected cities) - the position of the vehicle on the map, the current and expected delay, and the exact time when it will arrive at the stop. • maps of stops, connections, and routes for trams, buses, regional railways, trolleybuses, and metro • easy and intuitive navigation Ticket purchases are available in the largest cities in Poland! Timetables from saved stops are also available offline Thanks to Jakdojade, you can easily use public transport. You can search for city routes or intercity train connections, check timetables and buy tickets. Timetables available in cities: Białystok, Bydgoszcz, Bytom, Chorzów, Częstochowa, Gdańsk, Gdynia, Gliwice, Gniezno, Gorzów Wlkp., Grudziądz, Inowrocław, Jelenia Góra, Katowice, Kielce, Konin, Kraków, Leszno, Lublin, Łomianki, Łódź, Mysłowice, Nowy Sącz, Olsztyn, Opole, Pabianice, Piła, Poznań, Radom, Rzeszów, Słupsk, Sopot, Sosnowiec, Stargard, Swarzędz, Szczecin, Tarnowskie Góry, Tarnów, Toruń, Trójmiasto, Tychy, Warszawa, Wejherowo, Wrocław, Zabrze, Zgierz, Zielona Góra Tickets available in cities: Kraków, Kielce, Leszno, Lublin, Łódź, Metropolia GZM (Bytom, Chorzów, Gliwice, Katowice, Mysłowice, Sosnowiec, Tarnowskie Góry, Zabrze), Pabianice, Poznań, Swarzędz, Trójmiasto (Gdańsk, Gdynia, Sopot, Wejherowo), Tychy, Warszawa, Wrocław, Zgierz, Zielona Góra. Are you wondering 'how do I get there'? Do you need a ticket? Or maybe navigation? Use Jakdojade! Download the app and don’t be surprised by the urban jungle Having the GPS turned on in the background can significantly reduce battery life. The app does not have a special version for tablets. Terms of use: https://jakdojade.pl/public/pages/tos.html

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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 Navigation
Axios
Supabase
@react-navigation/native
DateTimePicker
Zustand
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.