App Overview

Tradera – buy & sell icon

Tradera – buy & sell

Tradera Marketplace AB · Shopping

warm welcome to tradera, the largest marketplace in the nordics

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.7
300 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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Combine features and design from your favorite apps.

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What's included19 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 Tradera – buy & sell: map the core Shopping 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 better algorithms for item promotion based on user interest.

Assumption to check: Limited item visibility for sellers

Validate with people who use this workflow before building.

Hypothesis 2

Introduce smart notification settings to customize alerts.

Assumption to check: Notification overload for users

Validate with people who use this workflow before building.

Hypothesis 3

Enhance category filtering and search options for better usability.

Assumption to check: Lack of clear item categorization

Validate with people who use this workflow before building.

Hypothesis 4

Integrate multiple payment options including Apple Pay for smoother transactions.

Assumption to check: Difficulties in payment processing

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

warm welcome to tradera, the largest marketplace in the nordics. at tradera, both buyers and sellers are verified, making tradera a safe and secure marketplace. payments are made through integrated payment methods. items can easily be shipped directly to your home. we have three million items for sale, and whether you're looking for a playstation, a retro scooter, a pasta machine, plants, or a winter jacket, we dare to promise that there's something for you. if you want to sell items you no longer use, tradera is the right place to turn those unused items into money in a simple and secure way. as a seller, you decide how you want to sell, whether through exciting auctions or quick purchases via our "buy now" format. as soon as the item is sold, you can easily book shipping directly in the app and receive a qr code on your mobile. at tradera, we are passionate about making circular shopping as easy and safe as buying new, and we are proud and happy that you are here, driving the change with us! more advantages of tradera: for sellers: - it's easy to sell. no haggling or similar from buyers, making the experience very smooth, and the selling process "takes care of itself." - no meetings with strangers unless you choose to. - shipping at tradera is simple and smooth. you can choose whether you want to offer pickup, which is also possible. - simple integrated shipping directly in the app. - you can see immediately in the app when the buyer has paid, and you can book shipping and send the package using the shipping method you have chosen. for buyers: - just as easy to shop on tradera as buying new. you can easily participate in bidding through autobids if you want. - add unique items to your watchlist to not miss out when the bidding ends. - if you want to shop directly and don't want to wait for a bid to end, it's possible to "buy now" on items with that format. you can also filter for it directly in your search results if you only want to see these items. - if an auction has ended but the item hasn't been sold, you can now also send a buyer inquiry even after the auction has ended. - after winning an auction or purchasing an item, you can easily pay via various payment methods directly in the app. welcome to tradera!

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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 Native
Expo
Supabase
Zustand
React Navigation
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.