ReferTree guides
Referral programs, without the digging.
We check current rewards, requirements, expiry rules and official terms before publishing.
Featured research
The Global Rise of Referrals: Growth, Trust and the New Referral Economy
A global research study on customer acquisition, personal rewards, affiliate growth, digital payments and the outlook to 2036.
Latest guides
Verified Nov 4, 2026
Dropbox Referral: 500 MB–1 GB Per Friend
Earn free storage for eligible signups; up to 16 GB Basic or 32 GB paid plans.
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Verified Nov 3, 2026
Jazztel Plan Amigo: €20–€40 Each
Spain: €20 each for fibre, €40 each for fibre + mobile; online only, five-friend cap.
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Verified Nov 2, 2026
Self Bank Plan Amigo: Up to €150 Gross Each
Spain: five qualifying actions, 120 days, one-year commitments and ten-friend limit.
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Verified Nov 1, 2026
Iberdrola Referral: €25–€40 Credit for Each
Spain: 12 monthly credits, tier-based rewards, 10-friend cap and 12-month expiry.
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Verified Oct 31, 2026
Plenitude Plan Amigo: €30–€60 Amazon Vouchers Each
Spain: Amazon.es gift cards for both, 10-friend cap, eligible household contracts and 60-day checks.
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Verified Oct 30, 2026
niba Referral: €50 Each in Wallet After 90 Days
Spain electricity referrals: €50 credit for each eligible person, 90-day validation and exclusions.
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Verified Oct 29, 2026
MASMOVIL LUZ y GAS: €20 Each in Electricity Credits
Plan Amigo pays up to €20 each, limited to €5 per bill; eligibility and other-offer exclusions.
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Verified Oct 28, 2026
DIGI&Friends Spain: €30 Each, Up to €300
€3 off for ten months per qualifying SMART/PRO-DIGI friend; up to ten rewarded referrals.
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Verified Oct 27, 2026
Gana Energía Plan Amigo: €50–€75 + €25
€50 for your first two friends, €75 from the third; each friend gets €25 over ten bills.
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Verified Oct 26, 2026
Finetwork Plan Amigo: €15 Each and 25% Bill Cap
€15 wallet credit for both; online-only signup and maximum 25% off monthly pre-tax bills.
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Verified Oct 25, 2026
simyo Referral Spain: €5–€20 for New Customers
Fibre €20, mobile port €15/€5; 3-month wait and official discrepancies in referrer rewards.
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Verified Oct 24, 2026
Holafly Referral: 10% Off + Up to 700 HolaCoins
First eSIM: 10% off for a new friend; earn 500–700 HolaCoins after activation, subject to $10 minimum.
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Verified Oct 20, 2026
NordVPN Referral: 3 Free Months + Up to 3 for Friends
3 months for referrers; friends get 1 or 3 months. Website purchase only; no public links.
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Verified Oct 19, 2026
Saily Referral: €4/€8 Each in Spain
EUR accounts: €4 standard or €8 Ultra for both; new user must apply code on first purchase.
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Verified Oct 18, 2026
Lowi WeLowi: Up to €80 Each in October 2026
€20–€80 for both people depending on plan and signup channel; three paid invoices required.
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Verified Oct 13, 2026
ABANCA Referral: €50 Net per Friend, Up to €500
€50 net for each qualifying friend who moves eligible payroll, up to 10 friends.
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Verified Oct 8, 2026
Woolsocks Referral: €25 for 2 Friends, Then €5 Each
Two valid friends unlock a €25 gift card; further referrals earn €5 each.
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Verified Oct 7, 2026
Twelve Referral Program: €10 Each + €15 Welcome Bonus
€10 each per referral, unlimited invites, plus €15 for the first 12,000 waiting-list users.
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Verified Oct 6, 2026
Santander Spain Referral Program: €80 per Friend
Earn €80 gross per qualifying new customer, up to 10 friends (€800 gross).
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Verified Oct 5, 2026
MyInvestor Referral Program: €25 Each
€25 gross for both people after each meets one qualifying balance, investment or deposit condition.
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Verified Oct 4, 2026
TRIBBU Referral Program: €5 Each
€5 each after a new user activates BBono Energético and completes 5 verified rides.
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Verified Oct 3, 2026
imagin Referral Program: €50 + €50 Voucher
Earn €50 per qualifying friend; the new customer gets a €50 Facilitea Shop voucher.
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Verified Oct 2, 2026
Kutxabank Linka!: €50 + €100 Referral Bonus
Spain referral for 18–30-year-old new customers: €50 for the referrer and €100 for the friend.
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Verified Oct 1, 2026
Cabify Referral Program: Invite Friends & Earn Discounts
How Cabify invitations work, variable rewards, eligibility and common code issues.
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Verified Sep 24, 2026
Unicaja Plan Amigo: €50 per Friend, Up to €1,000
Active until September 30: €50 per qualifying friend, new-customer and income rules explained.
Read guideVerified Sep 23, 2026
B100 Referral Program Spain: €40 + €20
Healthy get Healthy pays €40 to the referrer and €20 to the friend after qualifying card payments.
Read guideVerified Sep 22, 2026
Fi Referral Program: €20 Off + 1 Free Month
New Fi tracker buyers get €20 off plus one free membership month; referrers get one free month.
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Verified Sep 20, 2026
bunq Referral Program Spain: Rewards, Limits & Invite Rules
Different in-app rewards including a Personalized Card, Bonus Interest, trading months and spins.
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Verified Sep 20, 2026
Repsol Refer a Friend Spain: Earn Up to €80 per Friend
€30 for electricity, €30 for gas or €80 for both, paid after the new supply activates.
Read guideVerified Sep 19, 2026
Kraken Referral Program Spain: €10–€75 Each
Random €10–€75 rewards for both sides, EEA eligibility, trading rules and common issues.
Read guideVerified Sep 18, 2026
Starbucks Referral Program Spain: 500 Stars Each
500 Stars for both sides after a new member joins with the code and spends at least €2.50.
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Verified Sep 17, 2026
Endesa Referral Program Spain: €50 Each, Up to €500
€50 in PARA TI points for both sides, code deadline, new-customer rule and referral limit.
Read guideVerified Sep 16, 2026
BBVA Referral Program Spain: Up to €660 + €450 for Friends
BBVA Plan Amigo rewards, new €400 friend milestone, card, Bizum and eligibility rules.
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Verified Sep 15, 2026
Coinbase Referral Program: Rewards, Spain Rules & Common Issues
Country-specific rewards, EEA eligibility, qualifying purchases, deadlines and common referral issues.
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Verified Sep 14, 2026
Bolt Referral Program: Spain Rewards, Code Rules & Common Issues
Both sides can get a ride benefit after a new user’s first eligible ride. Reward values vary by market and offer.
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Verified Sep 13, 2026
Trade Republic Referral Program: Rewards, Rules & Spain Guide
Personalized cash or interest rewards, Spain eligibility, deadlines and public-sharing restrictions.
Read guideVerified Sep 12, 2026
WeRoad Referral Program: €120 Off & Up to 50%
Spain offer, qualification rules and public-sharing restrictions.
Read guideVerified Sep 11, 2026
Paysend Referral Program: Double $6 Rewards in September
September double-reward promotion and qualifying transfer rules.
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Verified Sep 10, 2026
Revolut Referral Program: Rewards & Requirements
Campaign-specific rewards, card and purchase requirements and common issues.
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Verified Sep 9, 2026
Wise Referral Program: Rewards, Requirements & Exceptions
Variable regional offers, qualifying activity and the 30-day missed-link rule.
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Verified Sep 8, 2026
N26 Referral Program: Bonus, Requirements and Timing
Variable reward after a qualifying first Mastercard payment.
Read guideVerified Sep 7, 2026
Vivid Referral Program: €20 + 3% for Friends
Stock Rewards and promotional interest requirements.
Read guideVerified Sep 6, 2026
Openbank Referral Program: Up to €70 Each
Card-purchase and Bizum requirements plus sharing restrictions.
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Verified Sep 5, 2026
Binance Referral Tournament: Up to 500 USDC
September promotion; EEA-registered users are excluded.
Read guideVerified Sep 4, 2026
Finst Referral Program: Earn €10–€200 in Bitcoin
September Bitcoin referral promotion and trading requirement.
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Verified Sep 3, 2026
Airalo Referral Code: Get $3 Off & Earn $3
Current offer, Airmoney and referral limits.
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Verified Sep 3, 2026
Octopus Energy Referral Program: €50 Reward
Spain reward, eligibility and public-sharing restrictions.
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Verified Sep 1, 2026
Vinted Referral Program: Earn Up to €15
Two milestones, coupon rules and country restrictions.
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