Official rules

1. Who runs Katchik rounds

Katchik rounds are run by an individual resident in France, reachable at support@katchik.com, who is the sole promoter of every round. There is no company. "Katchik", "we" and "us" mean this person.

Katchik is free to play: no purchase, payment or fee is ever needed to enter or to win.

Katchik is responsible for every prize, including one supplied by a prize provider. A prize provider is never the featured creator.

Katchik is not sponsored, endorsed or administered by, or associated with, TikTok, Meta (including Instagram), Apple or Google. Apple is not a sponsor and is not involved in any way.

2. Each round's own rules

Each round has its own official rules, generated from its settings, in the app and at katchik.com/round/ followed by the round number and /rules. They state the round's number, its featured creator, when it closes (a maximum duration, a maximum number of players, or both, whichever comes first), its one winner, any partner prize and its award date, the acceptance and claim windows, how the selected player is checked, and the version and cap of the points formula. Where they say more than these general rules, the round's own rules apply.

3. Who can join

You must be 18 or older and live in the United Kingdom, Germany or France. One Katchik account per person. One TikTok account per Katchik account.

Katchik staff and their households cannot win. The age and residence rules also apply to the free entry. If you are selected, we may ask for proof of your age and country; we delete it once checked.

You must control the TikTok account you take part with. To use the free entry, you do not need to link it, follow the featured creator or follow @katchikapp. If you are selected, the public-account and good-standing commitments in section 9 apply to you in the same way.

4. How to join

To join a round in the app while it is open:

1. Create or sign in to your Katchik account with your email address and password.
2. Link your TikTok account through TikTok Login Kit. It is not a way to sign in to Katchik.
3. Follow @katchikapp on TikTok yourself, once, and confirm it in the app. Until you do, you cannot earn points, do missions or join a round. @katchikapp is the programme's announcement channel: it posts each round's featured creator, its result and its missions.
4. Follow the round's featured creator yourself, in TikTok's own app.
5. Come back to Katchik and confirm: "I followed, count me in".

Katchik never automates a follow. A follow alone does not enter you. By default (candidate-first, section 7), we check your follow of the featured creator only if you are selected; in a follower-list round, every app entry's follow of the featured creator is checked after close. Your @katchikapp follow is checked only if you are selected, against Katchik's own follower list, except when @katchikapp is the featured creator of a follower-list round.

Keep following the featured creator until the round's winner is announced; after that you may unfollow.

A round closes at the time or the number of players stated in its own rules, whichever comes first. App entries and valid free entries count towards the same number of players.

Do not use both routes to enter the same round twice. If the same person enters a round twice, we keep the first valid entry.

5. Free entry

You can enter any round on equal terms at katchik.com/free-entry. This route is on the web only: no follow and no app are needed. There is no free-entry path inside the app.

Give your email address, a display name and your country, confirm that you are 18 or older, accept the Terms and the Privacy Policy, and confirm your email through the single link we send, before the round closes. We do not ask for your TikTok username or your date of birth.

One free entry per person per round. A free entry holds the round points of the Katchik account that uses the same verified email, or 100 tickets when no account uses it: the same rule as every entry. We match people by their confirmed email across both routes: whichever entry comes first holds the place, and a second entry by the same person adds nothing: a second form entry is refused, and joining in the app after a confirmed free entry shows that same free entry as your entry. Leaving a round in the app frees the place. Disposable email addresses are refused, and we may refuse an entry that breaks these rules. The number of free entries is shown on the round's public record.

The same prize, acceptance window and selection process apply to both routes. Free entrants do not follow the featured creator or @katchikapp, and no follow check applies to them. Any ticket cap applies to both routes in the same way.

If you are selected through the free entry, we contact you at your confirmed email. To take the win, you need a Katchik account with your public TikTok account connected, and that TikTok account must hold no other entry in the round; you can create the account and connect TikTok within the acceptance window. If this is not done in time, or a check fails, the next person in the order is selected. A prize is then claimed as section 10 explains.

6. Points and tickets

Round points are the points you earn for a round while it is open. Each round point you hold when the round closes is one ticket, and your round points also add to your all-time points. Every eligible entrant holds at least 100 tickets, and no limit on the share of tickets ever takes an entry below that. Points cannot be bought.

You earn points from linking your TikTok account, from your TikTok activity (stats points), from missions and from invites. Stats points measure your TikTok activity since the previous round's selection, over at least the last 28 days and at most 60 days, compared with accounts of a similar size, on likes, videos, regularity, engagement and audience growth. Audience growth means the growth of your own followers; the follows you give never earn points. Followers you gain while you are a round's featured creator never count towards audience growth. Followers who do not watch your videos lower your stats points. Stats points follow a versioned formula with a cap. The linking credit is a set amount, earned once per TikTok account and kept if you disconnect. It counts as tickets in the first round you join; if you earn it while no round is open, it waits for that round. Each mission and invite states its points; each round's rules give the formula version, the linking amount and the cap it uses, fixed when the round opens. Katchik may use different values in later rounds, but never changes a round's scoring after it opens.

Stats points become tickets when you enter a round and update until it closes. They reach your all-time points only if you are still in the round when it closes, and each activity is counted there once, even when two rounds' windows overlap. Leaving a round removes its stats points. Disconnecting TikTok removes only the open round's stats points; stats points already added in closed rounds stay.

Points from a mission verified while a round is open count in that round once you join it; a mission verified while no round is open adds to your all-time points only. When a round closes, we check the videos verified for it again: a video deleted or made private before the close no longer counts, and its points are removed.

An invite earns its points once per invited person, when that person joins their first round, and for at most 5 invited people in any 7 days.

A mission is a task the app states with its points: publishing your own TikTok post with a specified campaign hashtag or mention. We read your public videos through TikTok's video.list permission, to check missions and to work out stats points (videos, regularity and engagement). Every post you make for a mission is made for a reward, so disclose it with a clear label such as "Ad", "Werbung" or "Publicité", or with TikTok's content disclosure setting; use that setting whenever TikTok requires it. A missing label never makes a mission fail, but the disclosure is required.

Tickets are whole numbers. Once a round has 30 or more entrants, an entrant's tickets above 5% of the round's total are removed, rounded down, and never below 100.

Sponsored cards in the app show a brand video or a partner mission. Nothing is sold in the app. A partner mission earns the points it states, like any other mission; being sponsored never adds an entry, a point, a ticket or any other advantage in a round.

The selection weighs each entry by its tickets against every ticket in the sealed list used for selection (section 7).

The final result also depends on the checks, the acceptance and the replacement steps in sections 7 and 9.

7. How the winner is selected

Every round checks the selected player (candidate-first) unless its own rules say it uses the featured creator's follower list.

When a round closes, we seal its entry list and publish its fingerprint, before any eligibility check. The round itself is sealed about an hour after it closes. In a follower-list round, it is sealed instead after its challenge window, when we seal the eligible list and publish that list's fingerprint. The drand quicknet beacon round is fixed when the round is sealed, as the drand quicknet round published five minutes after that seal, so nobody, Katchik included, chooses it. If the beacon is late, we wait for it and never pick another value. We then apply the published, deterministic selection method to the sealed list (in a follower-list round, the eligible list) and the beacon value.

Anyone can repeat the calculation from the round's proof page, katchik.com/proof/ followed by the round number, with the verification script and its version.

Candidate-first. We select a candidate weighted by tickets, then check that person's follows ourselves on TikTok: the follow of the featured creator, in the featured creator's follower list or in the candidate's own following list, and the follow of @katchikapp, in Katchik's own follower list. A follow we cannot see counts as not followed. No follow check applies to a valid free entry. We never ask a candidate for a screen recording or a data export. If a check fails, we move to the next person in the deterministic order.

Follower list. After close, the featured creator sends Katchik their TikTok follower list, exported from TikTok's "Download your data"; if no export is possible, Katchik's team copies the list from their public profile. Every app entry is checked against it: an entry found in the list stays in the selection, an entry not found doesn't count. A valid free entry has no follow to check and stays in. For 24 hours from the moment the list is in, each app entrant sees their own answer and can dispute a Not found once, with one screenshot of their TikTok Following list. Katchik decides every dispute before the seal, and the decision is final for that round. If no list arrives within 48 hours of the close (extended once at most), the round uses the candidate-first check above, and the featured creator keeps their win. If you entered in the app and are selected, we still check your @katchikapp follow against Katchik's own follower list.

Either way, the selected person is only a candidate until they complete section 9. If you are selected, we tell you privately: in the app, by notification, and by email when a notification cannot reach you; a free entrant without an account is told at their confirmed email. You then have the acceptance window shown in the round's rules, 48 hours unless they say otherwise, to accept; it starts when we tell you, and we remind you 12 hours before it ends. Nothing about you is published before you accept. If you decline, do not accept in time, or a check fails, the next person in the order is selected. The order never selects the same person twice.

We aim to give the result about two days after the round closes, or about four days in a follower-list round. The round's page shows the expected time, and moves it later if a check fails or the follower list is late.

If no one is left, the next round opens with @katchikapp as its featured creator. A partner prize that no one can accept is carried to the next round and stated in its rules.

8. What the winner gets

The winner becomes the featured creator of the next round. Everyone who joins that round in the app must follow the winner on TikTok; free entrants are exempt. Katchik never promises a number of followers, and players may unfollow once that round's winner is announced.

The next round opens once the winner has accepted, when Katchik opens it. There is no fixed timetable. If no one accepts, it opens with @katchikapp as its featured creator.

When a partner offers a prize, how many there are, what they are, their value and their award date are stated in that round's rules. There is no cash alternative. Katchik remains responsible for every prize, including one supplied by a prize provider, and the prize provider is never the featured creator.

9. Winner's commitments

You must accept within the acceptance window (section 7) and pass the public-account and good-standing checks.

Your TikTok account must be public when you accept. Good standing means the account and its entries follow these rules and the Terms, no automated or bought engagement was used to earn points, and TikTok has not suspended the account.

When you accept, your TikTok handle and TikTok profile photo become public, as the winner and as the next round's featured creator. We never publish them before you accept and pass the checks.

To accept, you agree to keep your TikTok account public and your follower list visible until the next round is finalised, to have your TikTok handle and profile photo published as the winner, and to send your follower export from TikTok's "Download your data" within 48 hours of the next round's close when that round is checked against a follower list. If it does not arrive in time (extended once at most), the round uses the usual check; this is not a broken commitment and you keep your win. In the app you tick each commitment before you accept. The winner becomes the featured creator of the next round. You must also give accurate claim information.

If a winner breaks a commitment (a late follower export is not one, see above), they forfeit their win and any prize not yet sent, and followers gained are not taken back. While the next round has not opened, the win, with any prize, passes to the next person in the order. If the next round is already open, it is replaced once by a new round: everyone who had joined is carried over, but round points earned in the replaced round are not, and the win passes in the same way. If the replacement fails too, or nobody in the order can take the win, the next round starts the chain again from @katchikapp. Once the next round has closed, a forfeited win and its prize pass to no one.

These commitments apply to winners from both entry routes.

10. Claiming a prize

A sponsored prize is provided by a prize provider, a brand that is never the featured creator and has no part in the selection. Accepting your place and claiming the prize are separate steps. The winner claims it in the app within the claim window shown in the round's rules, 14 days after accepting unless they say otherwise; we remind you 3 days before the window ends. After that, the prize is not delivered.

Claiming is free. Delivery details (a shipping address, or an email for a digital prize) are used only to send the prize: they go to the prize provider only when the provider sends it, and are deleted 24 months after delivery. The prize award date and the delivery timing are stated in that round's rules.

On request, the winner's surname and county or region can be shared with anyone who asks. The winner can object by writing to support@katchik.com.

11. Your data

The controller is the individual who runs Katchik, reachable at privacy@katchik.com. We use the entry and claim data needed to run each round, on the lawful bases explained in the Privacy Policy.

Public round records show the list fingerprints, the beacon round and the accepted winner's handle and profile photo, never another entrant's name. In a follower-list round, the raw file is never stored: each username is converted to a keyed HMAC code when the file arrives, and the codes, their key and any dispute screenshot are destroyed 30 days after the round ends, and at the latest 60 days after its result.

People in a featured creator's follower list who are not Katchik members can read the notice for followers at katchik.com/follower-notice.

To delete your account, use Settings > Delete account in the app, confirmed with your password, or katchik.com/delete-account, which emails you a link. You have 30 days to cancel by logging in again. After that, your account data, points, missions, round history and TikTok connection are erased; published proofs keep fingerprints only, and a winner's handle stays on the round's public record, as the Privacy Policy explains.

Disconnecting TikTok revokes our access at TikTok and deletes the TikTok data we hold, except a keyed hash of your TikTok account ID, with the Katchik account it was last linked to, that stops the linking credit being earned twice and stops one TikTok account taking part in an open round through two Katchik accounts, kept after you disconnect TikTok, and for 12 months after your Katchik account is erased. While you or the other account has an entry in a round that is still open, you cannot link a TikTok account last linked to another Katchik account, or switch your Katchik account to a different TikTok account. If you used the free entry without an account, write to privacy@katchik.com to use your rights.

12. Disputes and changes

Write to support@katchik.com with the round number and your concern. In a follower-list round, challenges about the list go through the window before the eligible list is sealed (section 7). This does not stop you from making any other legal or privacy complaint.

We assess disputes against the published rules and evidence, and explain the outcome within 7 days.

We never change scoring, caps, entry conditions or prize quantities after a round opens to favour an entrant or to reduce our obligations. If an exceptional legal or technical event makes the stated process impossible, we cancel the round, tell every entrant, and open a new round on the same terms; no one loses points.

French law governs these rules, without removing the mandatory consumer protections of the country where you usually live (Rome I Regulation, Article 6). You keep the courts and remedies your country's mandatory law gives you.

These rules are in English. See also the Terms of Service and the legal notice.