Answer first: choose a workflow that explicitly documents anonymous responses, then test the participant view, presenter view, report, and export separately. Slido documents anonymous controls for polls and Q&A, but its quizzes require names. Socrative can disable Require Names for an anonymous quiz outside rostered rooms. Mentimeter shows why authentication is not the same as attribution: verified participants can be required to log in while responses remain anonymous. A nickname in Kahoot! is only pseudonymous when Player Identifier or another report field can still link it to a person.
Key findings, verified 27 September 2026
- No account does not establish anonymity. A response may still carry a nickname, participant identifier, lead-capture field, report row, or service log.
- Hidden from the audience does not mean hidden from the presenter or report. Public display, moderator access, and post-session attribution must be checked separately.
- Slido's current privacy controls cover anonymous or named polls and Q&A, including settings that keep participation anonymous; however, Slido's official guidance says those controls do not apply to a quiz, where names are required.
- Mentimeter can require a verified participant login while keeping names and response attribution hidden, or reveal participant names for a named workflow. Authentication and anonymity are therefore independent settings.
- Kahoot! can associate a required Player Identifier with a nickname in reports while hiding the identifier during gameplay. A playful nickname is not proof of anonymous reporting.
- Socrative documents a Require Names toggle that can be disabled for an anonymous quiz. Rostered rooms still require an identity, and merely hiding names on a projected results screen does not erase report identity.
What does anonymous quiz participation mean?
Anonymous participation means the documented response and reporting workflow does not associate an answer with an identifiable participant. Pseudonymous participation substitutes a nickname or generated label but may preserve a separate identifier, account, report row, or contact field. Confidential participation can identify the respondent to an authorized host while hiding that identity from peers. These terms are not interchangeable.
The promise must also have a boundary. This matrix evaluates product-facing collection and reporting evidence in current public documentation. It does not establish what a service logs for security, how administrators can access workspace data, which subprocessors receive it, or whether a specific deployment satisfies a law or organizational policy.
Participant identity matrix
| Platform and workflow | Participant-visible identity | Presenter or moderator view | Report identity | Safe conclusion |
|---|---|---|---|---|
| Slido poll or Q&A with anonymous settings | No name required in the configured anonymous workflow | Questions and poll responses can remain unattributed | Official guidance says an anonymous question cannot later be identified | Documented anonymous option; confirm the event privacy setting |
| Slido quiz | Participant supplies a name | Name supports quiz competition and results | Quiz identity is not covered by anonymous poll controls | Do not promise an anonymous Slido quiz; names are required |
| Mentimeter anonymous participation | Name can remain hidden even when verification is required | Host can choose anonymous or named response handling | Paid exports and participant-name features can change attribution | Login and response anonymity are separate controls |
| Kahoot! nickname plus Player Identifier | Nickname appears during play; identifier stays hidden | Host sees the gameplay label | Identifier is associated with the nickname in reports | Pseudonymous in play, identifiable in the report |
| Crowdpurr without optional lead capture | Game display identity follows the participant setup | Host manages participant results | Exports can include captured participant fields when enabled | Separate game identity from optional contact collection |
| Socrative with Require Names off | No student name is requested for the activity | Live Results can also hide names and answers on the projector | Anonymous quiz reporting depends on the launch and room configuration | Documented anonymous quiz option outside rostered rooms |
Sources checked on 27 September 2026: Slido participant privacy controls, Slido anonymous-question guidance, Mentimeter participant identity settings, Mentimeter participant identification, Kahoot! Player Identifier, Crowdpurr lead capture, and Socrative quiz launch controls.
Why is a nickname not the same as anonymity?
A nickname changes the label shown during participation. It does not answer whether a stable identifier follows that label into a report. Kahoot! documents this distinction directly: when Player Identifier is enabled, the required identifier is associated with the player's nickname and appears in reports, while the identifier itself is not displayed during gameplay. That can be a useful confidential workflow, but it is not anonymous reporting.
The same caution applies to generated animal names, seat numbers, initials, or codes. If the host keeps a roster that maps the label to a person, the workflow is pseudonymous. Describe the visible label and the stored identity separately rather than calling the entire session anonymous.
Can a verified participant still answer anonymously?
Yes, when the product explicitly separates authentication from response attribution. Mentimeter documents settings that can require participants to verify who they are while keeping their names hidden from responses. It also offers named participation and participant-name collection in other configurations. This is a useful pattern for limiting a session to an approved audience without attaching every response to the visible person.
That separation must be verified in the resulting report and export. If an organizer enables Participant Names, Quick Form contact collection, or a named export workflow, the data boundary changes. Do not infer anonymity from the slide appearance alone.
When does Slido support anonymous participation?
Slido documents anonymous and named participation settings for audience questions and polls, including configurations that start anonymous or always stay anonymous. Its June 2026 support answer says an anonymously submitted question cannot later be linked back to the person. That is stronger evidence than a mere no-login join path.
There is an important product boundary: Slido's privacy guide states that these options do not apply to a quiz, where participant names are required. Use anonymous polling or Q&A for candid sentiment; do not describe the competitive quiz workflow as anonymous.
How do Crowdpurr and Socrative change the identity boundary?
Crowdpurr documents optional lead-capture fields and spreadsheet exports. A host may run a game without collecting contact details, or may ask for fields such as name and email and later export them. The identity claim therefore depends on both the play setup and lead-capture configuration. Confirm the fields that are optional, required, stored, and exported.
Socrative documents a Require Names toggle when launching a quiz. Turning it off supports anonymous responses, while rostered rooms require identity. It separately lets a teacher hide names and answers in the projected Live Results view. That screen control protects the public display; it should not be confused with the launch setting that governs response identity.
Nine-field identity audit
- Host account: record who owns the activity and which administrators can access results.
- Participant account: note whether login or verification is optional, required, or unavailable.
- Join secret: record the link, code, QR path, roster membership, or invitation used to enter.
- Display label: capture what peers and the shared screen show during participation.
- Required identifier: check email, student ID, employee ID, player identifier, or a host-defined field.
- Optional contact fields: inspect forms, lead capture, registration, and profile prompts.
- Report identity: verify the name, nickname, identifier, and per-response attribution visible to the host.
- Export columns: download a synthetic result where the plan permits it and list every identity-related field.
- Retention and deletion evidence: record only what current documentation establishes; mark silence as unknown.
Run the audit with synthetic people and harmless responses. Check the participant-visible screen, shared display, presenter or moderator console, report, and export independently. Save the settings with the result because an activity type alone does not reproduce the identity boundary.
Worked example: candid conference feedback
A conference organizer wants candid feedback about session pacing, not a scored knowledge check. The safe workflow is an explicitly documented anonymous poll or Q&A configuration, with participant names and optional lead capture disabled. The opening slide should explain what peers, moderators, and reports can see.
- Create two synthetic participants and submit different responses.
- Confirm that neither participant is asked for a name, email, identifier, or profile.
- Inspect the audience display and moderator console for attribution.
- Open or export the result and check for stable participant rows or hidden identity columns.
- Record unknown service logs and retention as limitations rather than making a broader privacy promise.
If the event instead needs attendance evidence, use a confidential or verified workflow and say who can identify participants. Do not collect identity in one form and promise anonymity in the next screen without explaining the connection.
Common anonymity mistakes
- Calling a session anonymous because participants do not create an account.
- Assuming generated or self-chosen nicknames cannot be linked in a report.
- Hiding names on the projector while leaving named host reports enabled.
- Enabling optional lead capture without updating the participant notice.
- Using a vendor's anonymous polling claim for its separate quiz workflow.
- Claiming that authentication always reveals responses, or that no authentication always hides them.
- Inferring server logs, retention, deletion, or regulatory compliance from an interface setting.
Method and limitations
We separated account access, join method, display label, required identifier, optional contact fields, report attribution, export fields, and documented retention or deletion evidence. We then checked current first-party help and product documentation on 27 September 2026. The matrix narrows claims when a source establishes only the visible interface or a specific workflow.
We did not purchase subscriptions, perform authenticated cross-plan tests, inspect backend or network logs, audit subprocessors, test regional retention, submit real personal data, run a penetration test, or provide legal, privacy, security, or data-protection advice. Product settings can vary by plan, workspace policy, room type, activity type, region, and release. Organizations handling sensitive or regulated data need their own privacy and security review.
Practical next step
Write the exact promise you intend to make—anonymous, pseudonymous, confidential, verified, or named—then run the nine-field identity audit in the final configuration. Pair it with the participant access matrix for joining requirements and the reporting and export matrix for post-session fields.
Correction path: report a changed identity control, plan gate, report field, export column, or retention statement through the corrections process with the exact claim and current first-party source. Verification date: 27 September 2026.