Every match. Every lineup.
One chronological feed for the games your group chooses to track, with filters that answer the questions you actually ask.
League of LegendsWith SamWithout JacobRanked only
Shared match history
Your group's games.
One version of the truth.
One place for the games your group plays together. Filter by friend, lineup, queue, or result—and finally settle who is helping.
◉ Built for friend groups◉ Ownership-first account linking◉ League first, more games later
THE FIVE STACK
Shared history
SHARED MATCHES214
GROUP WIN RATE53.7%
BEST DUOYou + Jacob
NOTABLE FINDINGYour group wins 12.8% more when Jacob plays and Sam doesn't.Based on 47 shared matches · minimum sample applied
WOriannaRanked Solo/Duo8 / 2 / 11with Jacob›
LJinxRanked Flex4 / 7 / 6with Sam›
WThreshARAM2 / 5 / 24with Sam, Jacob›
WAhriNormal Draft11 / 3 / 7solo›
LINEUP EFFECT+12.8%without Sam
BEST DUOYou + Jacob59.1% win rate
What FriendDiff does
Not another build guide.
This is the group record.
FriendDiff is designed around the people you actually play with—not a global leaderboard full of strangers.
Same format. No excuses.
Compare each friend across the same games, queues, roles, champions, and shared lineups.
Stats worth sending to the group chat.
“Your win rate is 63% when Sam sits this one out.”
The jokes sit on top of real filters, minimum sample sizes, and visible match evidence.
How it works
Connect once. Let the history build.
Create your FriendDiff account
Your FriendDiff username is how friends find you and send group invitations.
Import a League profile
Enter a Riot ID to import public match data. During alpha, this is an unverified public lookup—not proof that the Riot account is yours.
Invite the group
Friends opt in with their own FriendDiff accounts before their histories become part of the shared record.
Filter, compare, and share
See the match evidence behind every comparison, finding, and receipt.
Photo by Jack B / Unsplash
Built for the Discord call
The scoreboard after the scoreboard.
The match ends. The argument does not. FriendDiff keeps the shared timeline, lineup splits, player pages, and evidence in one place—so the group chat can skip the screenshots and go straight to the receipts.
1shared timeline
∞possible excuses
0tabs required
Trust and account ownership
Your account should be yours.
FriendDiff is being built around verified, opt-in connections. We do not ask for your Riot password, and entering someone else's public Riot ID does not make it your linked account.
Verified ownership
Planned Riot account linking uses Riot Sign On, Riot's official authorization system, subject to Riot approval.
Scoped group access
Only accepted group members can access shared histories made available to that group.
Transparent data use
We explain what is collected, why it is needed, and how to request deletion in our Privacy Policy.
FriendDiff is an independent product and is not endorsed by Riot Games. Riot Games and League of Legends are trademarks or registered trademarks of Riot Games, Inc.
Common questions
Before your group starts keeping score.
FriendDiff is an early product. Here is what is available, what is planned, and how your data is handled.
What does FriendDiff track?
Match history, results, participants, queues, roles, champions, and gameplay statistics exposed by supported game integrations. FriendDiff turns that history into group filters and lineup comparisons.
Can I look up somebody else's Riot ID?
The alpha can retrieve public match data for a typed Riot ID. FriendDiff labels that import unverified and does not treat the Riot account as yours. Verified ownership linking is planned.
Does FriendDiff store my Riot password?
No. FriendDiff never asks for or stores your Riot password. Publisher authentication stays with the publisher.
Which games are supported?
League of Legends is first. Counter-Strike 2 and Rocket League are planned after the League experience and shared data model are stable.
Can I delete my account and data?
Yes. Account and deletion requests can be sent to privacy@frienddiff.com. Self-service deletion is also planned for the account settings area.
Is FriendDiff affiliated with Riot Games?
No. FriendDiff is an independent product and is not endorsed by Riot Games or any other game publisher.
Private test
The group chat is already arguing.
Bring the evidence.
FriendDiff is in active development. League of Legends is the first supported game, with verified Riot linking pending production approval.
Go to the download page →