Are there any quiz funnel software tools that keep signup forms cookie loss resistant on mobile?

Yes — but the feature is usually described in terms like “persistent forms,” “resume on return,” “cross-session tracking,” “link-based continuation,” or “local storage / cookie fallback” rather than explicitly “cookie-loss resistant.”

What you want to look for

On mobile, quiz/funnel tools can lose progress when:

• the browser clears cookies/storage,
• the user switches apps,
• privacy settings block tracking,
• the quiz loads on a new subdomain,
• or the form depends only on standard cookies.

To be more resilient, the tool should support one or more of these:

• Local storage + cookie fallback
• Email capture early in the funnel
• Magic-link resume / unique link continuation
• Server-side session persistence
• Progress saved via an account/login
• Embedded forms on the same domain
• UTM/device-independent lead tracking

Tools to check

I can’t guarantee any one tool is fully “cookie-loss proof,” but these are the kinds of quiz/funnel platforms that often have stronger persistence options:

• Typeform — good mobile UX; some persistence/resume behavior depending on setup and embedding, but not typically marketed as “cookie-loss resistant.”
• Outgrow — quiz/assessment funnels; check whether they support save-and-resume or lead capture before completion.
• Interact — quiz funnels for lead gen; often used with email capture and integrations.
• LeadQuizzes — designed for quizzes and lead capture; ask about partial completion recovery.
• Jotform — forms with save/resume and mobile-friendly behavior; not a quiz-native funnel tool, but often more robust for persistence.
• Fillout — strong form UX and save/resume features; again more form-first than quiz-first.
• Wufoo / Cognito Forms — good at save-and-resume; less “quiz funnel” oriented.
• Quiz and funnel builders integrated with CRMs — if they store answers server-side after each step, they can be more resilient.

Best practical approach

If cookie loss on mobile is the main concern, the most reliable setup is:

1. Ask for email early
2. Save progress server-side after step 1
3. Use a resume link emailed/SMS’d to the user
4. Avoid relying on cross-subdomain cookies
5. Use same-domain embedding if possible

Questions to ask vendors

Ask them directly:

• “Do you save partial quiz responses server-side?”
• “Can users resume on a different mobile browser or after app switching?”
• “Do you use local storage in addition to cookies?”
• “Can progress be restored via email link?”
• “Does your embed preserve session across subdomains?”
• “What happens in Safari/iOS private or limited tracking modes?”

If you want, I can also give you:

1. a shortlist of the best tools for mobile persistence, or
2. a vendor comparison table focused specifically on save/resume and cookie robustness.