How NextCall works

Three questions are published for each UTC game day. Every question is binary: two answers, exactly one of which will be true once the outcome is observable. Answer all three, or only the ones you have a view on.

Each card carries its category, its deadline, the rule that will resolve it and the source that rule reads. All four are published before you answer, never after.

Questions are drawn from weather, space and science, and scheduled technology and culture events. Financial instruments and prices, elections and public office, sports, health, crime, disaster and legal outcomes, and anything about a private individual all sit outside the launch categories under content policy content-2026-07-01.

Every question prints its own deadline, stamped in UTC — for example Locks 23:59 UTC. The server clock decides whether an answer arrived in time. A device clock set far ahead or far behind changes nothing: an answer that reaches the server at or after the deadline is rejected, and whatever was already on record stands.

Until the deadline you can change your answer as often as you like. Each change is appended to your history rather than replacing it, so the record shows what you last chose and what you chose before that. Nothing is rewritten after the fact.

Accuracy is your correct calls divided by the calls that have resolved, that you answered, and that were not voided: accuracy = correct / resolved answered calls. Your daily score is the sum of the points from that UTC game day.

Scoring runs under a versioned policy, so an old score can always be recomputed under the policy that produced it. There are no multipliers, no confidence bonuses, no purchases and nothing an advertisement can change.

The rule comes first. A question cannot be published without a plain-language resolution rule, a named primary source and its void criteria — all written before the question opens, so nobody can move the target after you answer.

Once a question closes, a resolver reads the declared source and attaches the evidence: what was observed, where it was published and when it was captured, bound to the exact version of the question you answered. One person proposes the resolution and a different person approves it before any score is published.

If the source is ambiguous, late or silent, the question stays pending or is voided. An outcome is never guessed, and a pending result says so plainly rather than showing a placeholder answer.

A correction creates a new resolution version and a new score version. Earlier scores are marked superseded rather than erased, leaderboards are rebuilt from the active scores, and a correction notice names what changed and when. If a correction touches one of your calls, you see that notice in the product.

Every question publishes its void criteria next to its resolution rule, so you know in advance what would make it unanswerable — a station that never publishes its daily figure, an event that is postponed past its window, a source that contradicts itself.

A voided question scores nothing and is excluded from both your points and your accuracy. It leaves your record exactly as it was. A void does not break a participation streak for a player who answered in good faith, and the reason for the void is published with it.

Leaderboards cover the game day, the configured UTC week and all time. Ranking is dense: exact ties share a rank, and the rank after a tie is not skipped. Weekly and all-time ranking requires a minimum number of resolved calls, so a single lucky day cannot top the table.

A participation streak counts the days on which you answered at least one question. It measures showing up, not accuracy. There is nothing to buy that protects one, and nothing is said to shame you when one ends.

Profiles that are restricted, deleted or opted out are absent from public rows. No leaderboard, streak or badge produces anything of value.

NextCall is not a prediction market and not a financial product. Nothing is bought, sold, exchanged or risked, in either direction. Points have no monetary value, cannot be transferred and cannot be redeemed for anything.

Questions are never about a market price, and an advertiser can never be the subject of a question or influence how one resolves. The only thing you are playing for is a record of how often you called an outcome correctly.

Display advertising pays for the game, which is how it stays free. Ad slots are labelled as advertisements, hold a reserved space so the page never jumps, and sit well away from the answer controls.

An advertisement never gates a question, an answer or a result. If a slot does not fill, it collapses and play continues. Advertisers have no say in which questions are published, how they resolve or who ranks where.

Your identity starts anonymous. Linking an email is optional and exists for one reason: carrying your record to a second device. Your existing calls stay attached to you when you do.

You can export your data or request deletion at any time from privacy choices, and neither request stops you answering today's questions while it is processed. Consent choices live in settings.

A share card shows a date, a correct count, a total, points and a streak. It never shows an email, an internal ID, a location, an age, or any answer before its deadline has passed.