Email-first
2-step login
The login form checks whether the account should continue with password, Google or Apple.
Feature
Email Account Authentication
Create a secure Kardive account with email.
EV
Expected value before grading.
ROI
Profit after all costs.
Risk
Grade downside made visible.
Product preview
Static app snapshotEmail Account Authentication inside the app
Based on the real account flow: email-first login, username availability, Google login and reset password.
Kardive app
Email Account Authentication
Illustrative, non-interactive preview
The screen below is a static snapshot based on the real Kardive app. Buttons and controls are intentionally inactive on this marketing page.
Access foundation
Email Account Authentication for serious Pokémon grading decisions.
Authentication matters because Kardive separates public previews, Free accounts and Pro workflows. Email login, Google login and prepared Apple login all lead to the same account experience.
Decision example
Google, Apple and password users get the same app experience.
That keeps plan gates, limits, dashboard and account settings consistent across login methods.
Account statusPlan tierLimits
Username
Unique pseudo
Registration collects a unique username and validates availability in real time.
Verification
Email confirm
Email-created accounts confirm their address before normal use.
Login-ready
Google + Apple
Google works end to end; Apple is structurally prepared for developer setup.
Why Kardive is different
Compared with price trackers and spreadsheets
| Decision area | Generic tracker | Spreadsheet | Kardive |
|---|---|---|---|
| Login methods | Email or social. | None. | Email, Google login and Apple-ready architecture. |
| Plan context | Subscription state. | None. | Account status returns user, tier, limits and plan state. |
| Security flow | Standard. | None. | Email verification, reset password and secure session protection. |
Workflow
Auth workflow
- 1Enter email.
- 2Choose the right sign-in method.
- 3Complete password, Google or Apple login.
- 4Load the user’s account status.
- 5Apply Free or Pro access.
Use cases
Where this helps in the real app
Preview becomes Free account
A person who tries the calculator preview can log in and start saving limited workflows.
Account signs in cleanly
Email-first login redirects users to their configured sign-in method when needed.
Reset from settings
Password changes use the same email reset workflow as forgot password.
Email registration
Users create an account with email, password and username. Kardive protects the password, checks that the username is unique and sends an email confirmation link.
- Password
- Username
- Email confirmation
Two-step login support
The login form first asks for email, checks the preferred login method, then either continues with password or redirects to the right sign-in method.
Password reset by email
Forgot password and settings password changes both use the same email reset workflow. Reset password forms include reveal-password controls.
Account status drives the app
After login, Kardive loads the user account, plan, access level and remaining limits.
How the pieces connect
From question to action.
Kardive turns market data and user assumptions into a grading decision users can revisit and improve.
ROI by grade bucket
Raw vs graded value
Break-even grade
Expected value
Risk level
Saved scenarios
Watchlists
Email alerts
Price history
Grading opportunities
Portfolio tracking
spreadsheet exports
FAQ
Common questions.
What is Email Account Authentication used for?
Email Account Authentication helps users move from Pokémon card research to a concrete grading decision. Create accounts with email and password, verify email, request password resets and keep access tied to a real account.
Does Email Account Authentication use real Kardive data?
This page describes how the feature works in Kardive: card metadata, raw value, graded prices, user cost defaults, saved assumptions and plan-aware access where relevant.
How is Email Account Authentication different from a price tracker or spreadsheet?
A tracker usually answers what a card is worth, and a spreadsheet depends on manual formulas. Kardive connects the same context to grading-specific decisions: costs, grade outcomes, expected value, risk, saved workflows and plan-aware actions.
How does Email Account Authentication connect to the ROI calculator?
The feature either feeds the calculator, explains a calculator result, saves a calculator scenario or brings the user back when a card needs a fresh ROI check.
Is Email Account Authentication available on every plan?
Free and Pro access depends on the workflow. The public site sends people to login, while Kardive checks limits and Pro features inside the app.
Keep researching
Related Kardive pages
Ready to test your next grading decision?