About Promokoin

Promokoin was created in 2023 to help crypto traders save on fees. We test exchanges on real accounts, verify referral codes monthly, and publish what the account actually shows.

What we cover
Everything you need to navigate crypto

Exchange reviews, practical guides, and verified referral codes — all in one place.

Exchange Reviews

Clear comparisons of fees, security, and features to help you choose the right exchange.
Crypto Guides

Step-by-step help with wallets, blockchain networks, account setup, and platform navigation.
Referral Codes

Referral codes and sign-up offers, re-checked monthly on our own partner accounts.
Our editorial standards
How we work

Five rules that apply to every page on the site.

Verified Information

Fees and interface details come from our own accounts; market data from CoinGecko and CoinMarketCap.

Regular Updates

We re-check codes and fees monthly, and every page shows when it was last verified.

Clear Disclosure

We earn a share of trading fees when someone registers through our codes. It comes from the exchange’s revenue, not your pocket, and it doesn’t change our ratings.

Risk Awareness

We include warnings because cryptocurrency carries significant financial risk.

No Paid Rankings

We never accept payment for rankings or favorable reviews. Our opinions are always our own.

Meet the authors
Meet the authors behind Promokoin
John Calder
John Calder
Founder, Lead Developer & Editor (English)
Founder Lead Developer Crypto Researcher 6+ Years Experience

John is the founder, lead developer, and editor of Promokoin, with over 6 years in crypto. He has personally tested every exchange and wallet featured here — opening accounts, running deposits and withdrawals, documenting what the interface actually does.

Before Promokoin he built and ran several independent sites in the financial sector, from personal finance to fintech products. The day-to-day now is tracking fee changes, walking through registration flows, verifying referral terms, and writing the guides.

Areas of expertise
Crypto exchange reviews, wallet setup and security, blockchain networks, referral and bonus programs.
Contact
info@promokoin.com
Contact us
Questions or suggestions?

Reach out — we usually reply within 48 hours.

Email
info@promokoin.com
Response Time

Within 48 hours.