Marketplace / Product engineering

Building a trusted P2P rental marketplace for the complete transaction lifecycle

Mietzy helps people earn from underused belongings and rent what they need locally. The product joins discovery, AI-assisted listing creation, identity checks, messaging, orders, deposits, and split payments.

Mietzy peer-to-peer rental marketplace mobile interface
Industry
Sharing economy
Platforms
iOS · Android · Web · Admin
Services
Product designFull-stackPayments

Overview

The marketplace only works when listing, renting, paying, and returning feel like one product

A rental marketplace has more states than a conventional store. Availability, approval, deposits, pickup, returns, disputes, platform fees, and payouts must stay synchronized for two users and the operations team.

Mietzy was designed around that full lifecycle, with AI reducing listing effort and a shared order model keeping every participant aligned.

Market
Germany
Model
Two-sided marketplace
Payments
Stripe Connect
Trust
KYC + reviews

The challenge

Create enough trust for strangers to exchange valuable items

Discovery alone does not produce a healthy marketplace. Owners need control over availability and applicants; renters need clear pricing and protection; the platform needs identity, payment, fee, and dispute controls that do not overwhelm the transaction.

The solution

A state-driven rental journey supported by identity and split payments

Every request moves through explicit states from inquiry to completion. Messaging is connected to the listing and order, KYC gates sensitive actions, and Stripe Connect separates platform fees from seller payouts.

Platform system

The operational depth behind a simple local rental

01

AI-assisted listings

Photos and short inputs become a structured draft with title, description, category, and useful listing details.

02

Requests, chat, and orders

Availability, negotiation, approval, payment, pickup, and return stay connected to one rental record.

03

KYC and marketplace payouts

Identity verification and connected accounts support safer transactions, platform commissions, refunds, and seller settlement.

Product outcome

A marketplace foundation that can support real transactions and daily operations

Mietzy moves beyond a listing prototype into a complete product system for renters, owners, support teams, and marketplace administrators.

4 surfaces
Mobile, web, payments, and admin
End to end
Listing through payout and return
Trust built in
Identity, reviews, and transaction records

Case FAQ

What makes a P2P rental marketplace different from ecommerce?

The same inventory is reused across time, both parties must coordinate a handoff and return, and funds may need to be held, split, refunded, or disputed across multiple states.

Where does AI help without reducing listing quality?

AI is useful for turning sparse owner input into a structured draft. Owners should always review the facts, pricing, condition, and availability before publishing.

Next case study

ImageAI

ImageAI art creation app for iOS

Have a product in mind?

Let’s turn the difficult part into a product people understand.

Bring us the workflow, business constraints, and ambition. We will help shape the product and ship it.

Start a project