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reva Blog266 guides, tools and comparisons

Resell with numbers, not guesses.

How to find underpriced items, price them against what similar items actually sell for, list them well and keep the profit. Written by the team building reva, with sources on every fee and rule.

Complete guides

Each one is the centre of a topic. Start with the one closest to your problem.

Vinted · Complete guideThe Complete Vinted Reseller Guide

Vinted for resellers: fees by country, pricing without a sold filter, sourcing, bumps, bots and relisting rules, Pro accounts, shipping, disputes, DAC7.

26 min read
Pricing · Complete guideThe Complete Resale Pricing Guide

How to price used items for resale: comps from sold and live listings, condition, price levels from fast sale to max profit, markdowns, offers and bundles.

21 min read
Reselling · Complete guideHow to Start Reselling in Europe: Beginner to Business

How reselling works end to end in the EU and UK: sourcing, pricing, marketplaces, fees, taxes, shipping and scaling, with Poland examples in zł.

26 min read
Sourcing · Complete guideThe Complete Product Sourcing Guide for Resellers

Where resellers find stock and how to judge it: online listings, second-hand shops, bales, alerts, buying rules, demand checks and fake detection.

25 min read
Profit · Complete guideHow to Calculate Reselling Profit: The Complete Guide

Work out what a flip really earns: cost of goods, marketplace and buyer fees, shipping, returns, promotions, ROI vs margin and tracking profit per item.

25 min read
Crosslisting · Complete guideThe Complete Crosslisting Guide for European Resellers

How crosslisting works in Europe: marketplace rules, Vinted, OLX and Allegro Lokalnie specifics, tool options, delisting fast and avoiding double sales.

24 min read
Operations · Complete guideInventory Management for Resellers: The Complete Guide

Inventory management for one-off resale stock: SKUs, storage, cost and listing status, sell-through and turnover, aged stock rules, shipping and returns.

21 min read
Categories · Complete guideHow to Resell Used Items by Category: The Category Guide Hub

What sets the price, the main risk and the best selling channel for each category of used items, from phones and LEGO to jackets, with a guide for each one.

17 min read

Calculators

Free, in your browser, with the formula explained under each one.

Popular guides

Sourcing · Deep guideHow to Check an Item Is Genuine Before You Buy to Resell

A pre-purchase authentication method for resellers: documentation habits, category checks, platform verification services compared, and risk rules.

14 min read
Reselling · Deep guideReselling in Germany: Kleinanzeigen, Vinted and the Rules

How resale works in Germany: Kleinanzeigen, Vinted and eBay.de compared, what private selling costs, and the line between private and commercial selling.

13 min read
Vinted · GuideCan You See Sold Prices on Vinted?

Can you see sold prices on Vinted? What the app shows, why 'sold filter' tips conflict, and honest ways to estimate what similar items went for.

9 min read
Operations · GuideReseller Bookkeeping: A Simple System That Survives Tax Season

A minimal bookkeeping workflow for resellers: five fields per flip, four reports, platform tax-reporting thresholds, and a 15-minute weekly routine.

9 min read
Vinted · GuideHow to Price Items on Vinted

Price on Vinted with evidence: condition guidance from Vinted, live competition, listings that left the market, the buyer fee's effect and when to cut.

8 min read
Marketplaces · GuideWhere to Sell Used Phones: Marketplaces, Refurbishers or Trade-In

Every route for a used phone: marketplaces, refurb buy-out sites, carrier trade-ins — what each pays, how fast, and which phones belong where.

8 min read
Marketplaces · GuideWhere to Sell Designer Bags: Consignment, Marketplaces or Direct

Where designer bags sell: peer marketplaces with verification, luxury consignment, eBay authentication route, and how fees and payouts differ.

8 min read
OLX · GuideWhy Your OLX Listing Is Not Selling (and What to Change First)

A diagnostic for stalled OLX listings: visibility vs price vs trust, what to fix in what order, where refresh fits in, and when OLX is the wrong place.

8 min read
Marketplaces · GuideWhere to Sell Watches: Matching the Watch to the Market

Where different watches actually sell: general marketplaces, eBay with authenticity checks, specialist platforms for high-value pieces, and what each costs.

8 min read

Comparisons

Topics

Reselling

Reselling basics, starting and scaling a resale business, and country and market guides with a Poland and EU focus.

10 pages
Sourcing

Where and how to find items worth reselling: online listings, second-hand shops, bales, alerts and buying rules.

24 pages
Pricing

How to price used items for resale: sold comps, condition, price levels, markdowns, offers and bundles.

16 pages
Demand

Measuring demand before you buy: sell-through, product research, market exits and what is worth reselling.

4 pages
Profit

Profit maths for resellers: fees, margins, hidden costs, DAC7 reporting and tracking profit per item.

10 pages
Marketplaces

Guides to resale marketplaces beyond Vinted, OLX and Allegro: eBay, Depop, Vestiaire fees and where to sell by category.

20 pages
Vinted

Everything a reseller needs to know about Vinted: fees by country, pricing, rules, bumps, Pro accounts and disputes.

30 pages
OLX

Reselling on OLX.pl: listing limits, fees, OLX delivery and protection, relisting and duplicates.

6 pages
Allegro

Selling on Allegro and Allegro Lokalnie: commissions, Smart! parcels, account types and when to use which.

6 pages
Categories

Category resale guides: sneakers, phones, bags, watches, vintage, trading cards and electronics.

43 pages
Crosslisting

Listing the same item on several marketplaces: rules, tools, Vinted and Poland specifics, avoiding double sales.

9 pages
Operations

Running the resale machine: inventory, shipping and returns, photos and listings, automation and daily workflows.

28 pages
Tools

Free resale calculators and templates: profit, ROI, break-even, fees, turnover, quick-sale price, max buy price and a profit tracker.

9 pages
Compare

Honest comparisons: reva vs other reseller tools, alternatives lists, best tools, and marketplace-vs-marketplace.

24 pages
Glossary

Short definitions of resale terms: sell-through rate, COGS, ROI vs margin, buyer protection and final value fees.

24 pages

Everything on the blog

Complete guides

Guides

Calculators and templates

Comparisons

Definitions

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Scout shows finds priced below the level where similar items leave the market. Every price is an estimate you check before you buy.