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How to Use FOMO Referral Code "JOIN100": Full Guide (2026)

Step-by-step guide to using the FOMO referral code JOIN100: where to enter it during signup, what the 10% trading fee discount gives you, how much you can save, and what to do if the referral field does not appear.

9/24/2026 9 min read
How to Use FOMO Referral Code "JOIN100": Full Guide (2026)

To use the FOMO referral code JOIN100, download the FOMO app, tap Sign up, create your account, and enter JOIN100 in the Referral code / Invite code field before you submit the form. The code applies a 10% discount on trading fees for eligible users, and it takes effect the moment your account is created.

That is the short answer. The rest of this guide walks through every step in detail — on mobile and on the web — shows exactly how much the 10% discount is worth at different trading volumes, and explains what to do if the referral field does not show up. If you want to skip ahead, you can claim JOIN100 here or use our copy trading fee calculator to see your personal savings.

Quick answer: how to use the FOMO referral code

StepWhat to do
1Open the FOMO app or go to the FOMO website
2Tap Sign up and choose email, Apple or Google
3Find the Referral code / Invite code field on the signup form
4Type JOIN100 exactly (capital letters, no spaces)
5Finish creating your account — the 10% fee discount is applied

What the JOIN100 referral code gives you

The JOIN100 code gives eligible users a 10% discount on FOMO trading fees. FOMO charges around 0.50% per trade on copy trades, so a 10% discount brings your effective rate down to roughly 0.45% per trade.

That may not sound dramatic on a single trade, but copy trading is repetitive by nature. Every trade your copied traders execute passes through the fee system, so the discount compounds across hundreds or thousands of trades per year. On a realistic monthly volume the difference is meaningful — the savings table below shows the numbers.

Beyond the fee discount, JOIN100 is simply the code this site's readers use. It costs you nothing extra, requires no subscription, and there is no limit on how many trades the discount covers.

How to use the FOMO referral code on mobile (step by step)

Most people sign up for FOMO on their phone, because the app is built around following traders on the go. Here is the full flow:

  1. Download the FOMO app from the App Store or Google Play, or open fomo.family/r/JOIN100 directly on your phone — this link pre-fills the code for many users.
  2. Tap Sign up. You can register with an email address or continue with Apple or Google.
  3. Look for the referral field. On the signup screen, below the password field (or below your login choice), there is a field labeled Referral code or Invite code. Tap it.
  4. Enter JOIN100. Type the code exactly as shown: all capital letters, no spaces before or after. Auto-correct sometimes capitalizes or changes codes — double-check it character by character.
  5. Submit the form. Confirm your email if prompted and finish creating the account.
  6. Verify the discount. Once inside the app, your fee schedule should reflect the 10% discount on eligible trades. You can also check the profile or settings area for a section showing your applied referral or invite code.

That is the entire process. The discount is tied to the account from the moment of signup, so there is nothing else to activate.

How to use the referral code on the FOMO website

Prefer to sign up on a larger screen? The web flow is nearly identical:

  1. Open fomo.family/r/JOIN100 in your browser.
  2. Click Sign up in the top-right corner.
  3. Fill in your email and password (or use a social login).
  4. Enter JOIN100 in the Referral code field before submitting.
  5. Confirm your email address and log in — the fee discount is active on the new account.

Signing up on web and continuing on mobile works fine: the code is attached to the account, not the device.

Troubleshooting: the referral code field is missing

Some users report that they cannot find the referral field during signup. This is the most common issue, and it almost always has a simple cause:

ProblemLikely causeFix
No referral field visibleYou are logging in instead of signing upUse Sign up, not Log in — the field only appears at registration
Field disappeared after a stepYou completed signup alreadyReferral codes can only be applied during account creation; support may help for very recent accounts
Code rejected as invalidTypo, lowercase letters or an extra spaceRe-enter JOIN100 in capitals with no spaces
Signed up through a different linkThe link overwrote your entryClear the app, reopen fomo.family/r/JOIN100 and sign up there

The key rule: the code must be entered before you create the account. It cannot be added afterwards through settings in most cases, so take ten extra seconds during signup rather than losing the discount for good.

How much you save with JOIN100

Here is the math. FOMO's base fee is about 0.50% per trade; JOIN100 removes 10% of that fee, so you pay roughly 0.45%. Your saving depends entirely on your monthly trading volume:

Monthly copy trading volumeFees at 0.50%Fees with JOIN100 (approx.)You save per monthYou save per year
$1,000$5.00$4.50$0.50$6.00
$5,000$25.00$22.50$2.50$30.00
$10,000$50.00$45.00$5.00$60.00
$25,000$125.00$112.50$12.50$150.00
$50,000$250.00$225.00$25.00$300.00

A few honest observations about these numbers:

  • At low volume, the discount is small in absolute dollars. It is still free money, but it will not change your results.
  • At higher volume — which is common in copy trading, since you may follow several traders at once — the yearly saving becomes substantial.
  • The discount applies to FOMO's own fee, not to network (blockchain) fees, which are charged separately on Solana transactions.

If you copy trade actively, run your own numbers in our copy trading fee calculator — it compares FOMO's rates with and without the discount against other platforms.

Referral code vs promo code: does it matter which word you use?

People search for this code under different names — referral code, promo code, invite code, discount code. On FOMO they all refer to the same thing: the code you enter at signup to receive the fee benefit. JOIN100 is a referral code that works as a promo: you get the 10% discount, and the person who shared the code earns a small referral reward from FOMO.

This matters for one practical reason: never pay for a "promo code" or buy codes from third-party websites. Legitimate codes like JOIN100 are always free. Anyone selling FOMO codes is running a scam, because the platform issues them at no charge.

Common mistakes to avoid

  • Signing up before entering the code. The most frequent mistake. Referral codes must be entered during registration — they generally cannot be retroactively applied.
  • Typos and autocorrect. JOIN100 ends in the number zero, not the letter O. Enter it carefully.
  • Using someone else's screenshot code. Codes shared in screenshots are often cropped or mistyped. Copy the code from a trusted source or use the direct link.
  • Assuming the discount covers network fees. The 10% applies to FOMO's trading fee. Solana network fees (usually fractions of a cent) are charged separately.
  • Chasing multiple codes. You can only apply one referral code per account. If you see different codes elsewhere, pick one — splitting effort across accounts adds nothing.

How FOMO compares with other copy trading apps

If you are still choosing a platform, here is how FOMO's referral deal stacks up against the other tools we cover:

PlatformReferral codeWhat you getLink
FOMOJOIN10010% off trading feesfomo.family/r/JOIN100
GMGNCOPYHQFee rebate on Solana tradinggmgn.ai/r/COPYHQ
PhotonCOPYHQFee rebate on Solana tradingphoton-sol.tinyastro.io/@COPYHQ
AxiomrebatehqTrading rebate on Solanaaxiom.trade/@rebatehq
RunnrTRADEHQ10% off trading feesmobile.runnr.trade/@TRADEHQ

Each platform has a different character. FOMO is the most social — it feels like a mix of a trading app and a social network, where you broadcast trades, follow others and discuss setups. Our full FOMO review covers the experience in depth, and our tools directory compares all major Solana and BSC copy trading platforms side by side, including fees and chains supported.

Frequently asked questions

What is the FOMO referral code for 2026?

The code is JOIN100. It gives eligible users a 10% discount on FOMO trading fees and is entered during account signup.

Where exactly do I enter the code?

On the Sign up screen, in the field labeled Referral code or Invite code — usually just below the password field. Enter it before you submit the registration form.

Can I add the code after creating my account?

In most cases, no. Referral codes must be applied at signup. If you created an account minutes ago without a code, contacting FOMO support is your only option — there is no self-serve way to add one later.

Does JOIN100 cost anything or expire?

No. The code is free to use and there is no subscription. Referral programs can change terms over time, so if you are reading this long after publication, double-check the current benefit on the FOMO signup page.

Is FOMO safe to use?

FOMO is a legitimate social trading app, but copy trading itself is risky: you are delegating trade decisions to other people, and past performance never guarantees future results. Only copy traders whose track record you have verified, never invest more than you can afford to lose, and read our guide on what FOMO is and how it works before depositing funds.

Can I use the code in every country?

Availability depends on your region, since crypto apps face different local regulations. The signup flow will tell you immediately if FOMO is not supported where you live.

Final thoughts

Using the FOMO referral code comes down to one moment: the signup form. Open the app or fomo.family/r/JOIN100, tap Sign up, type JOIN100 into the referral field, and submit. The 10% fee discount applies from that moment on, across every trade your account makes.

For a broader picture before you commit, these guides will help:

*Trading cryptocurrencies involves substantial risk of loss. This article is for information only and is not financial advice. Referral terms are set by FOMO and may change.*