A promo code links your new account to an offer before your first deposit. The 1win code MAXWIN100S attaches the welcome package the moment you register in the app (version 1.5.1, com.mobile.one_win, Android 8.0+, 5.0 MB). This page is the full reference: exactly where the field sits on the app and on the mobile site, what each of your four deposits unlocks, how the code differs from signing up without one, and every reason a code gets rejected. You type it at sign-up — it can't be added later.
What the 1win promo code MAXWIN100S unlocks
One code, one slot. Enter MAXWIN100S at registration and it opts you into the 500% welcome package across your first four deposits — or 600% if you fund with crypto — plus the casino package and 70 free spins. Skip it and your deposits are plain top-ups with no match. The sports part of the package clears at x5 through accumulators of three legs or more at 1.40+ within 30 days.
Where to enter the 1win promo code: app vs mobile site
The field is in the sign-up form, but it looks slightly different depending on where you register.
On the Android app
Open the app and tap Register
Install the APK first, then start a new registration.
Pick a sign-up method and set your currency
Currency is permanent, so match it to the wallet you'll deposit with.
Open the "Promo code" field
Tap "I have a promo code" if the box is collapsed, then paste MAXWIN100S — don't retype it.
Check the offer shows as attached
The welcome package should appear before you finish. If it doesn't, fix the code now — not after.
Register, then make your first deposit
The match fires on that first deposit at or above the cashier minimum.
On the mobile site or one-click
The promo field sits in the same registration modal. One-click sign-up issues a username and password instantly, so paste the code in that modal — there is no later screen to add it on. On iPhone, where there's no APK, the code goes in the same browser sign-up form. Some guides mention activating the offer from the Promotions section after depositing, but the code itself still has to be typed at sign-up for the package to attach.
What each of your first four deposits unlocks
The 500% is not one match — it's four, each on its own deposit. You don't have to make them all at once; every deposit triggers its own percentage.
| Deposit | Match | What it adds | Note |
|---|---|---|---|
| 1st | 200% | the biggest single boost | triggers the package |
| 2nd | 150% | extends it | made after the 1st credits |
| 3rd | 100% | keeps the run going | — |
| 4th | 50% | completes the 500% | full package now active |
All four together make the 500% — 600% with crypto — and the whole package clears under one x5 rule.
With the code vs without it
| With MAXWIN100S | Without a code | |
|---|---|---|
| First four deposits | 500% package (600% crypto) | plain top-ups, no match |
| Casino extras | casino package + 70 free spins | none |
| When you can add it | sign-up only | — |
| Later access | — | only occasional vouchers for existing players |
Register without the code and the welcome package is gone for good. Established accounts only receive the odd voucher, never the full 500% — which is why the code has to go in the very first time.
Why a code gets rejected — and the fix
The 1win promo code terms in one place
| Term | Detail |
|---|---|
| When to enter | registration only, before the first deposit |
| One per | person and household — no duplicate accounts |
| Minimum deposit | shown in your currency at the cashier |
| Package | 500% over four deposits (600% crypto) + casino pack + 70 spins |
| Wagering | x5 on accumulators, 3+ legs, 1.40+ each |
| Time limit | 30 days from activation |
| Currency | set once at sign-up, can't change |
