Answers to the most common questions. Can’t find yours? Message us through the chat, Zalo or Facebook.
Four tools for one quantitative research workflow: designing a model and reading SmartPLS/SPSS/AMOS result tables on simulated data, building Likert questionnaires with AI, filling Google Forms automatically, and encoding data for SPSS. We also offer consultation and data analysis services.
No. Every tool runs in your browser; the heavy calculations run on The Light Data’s servers.
Model design and result tables, AI questionnaires, reading a Google Form, previewing responses and reviewing the suggested codebook are all free. Submitting Google Form responses, downloading the full simulated dataset and exporting encoded files cost credits — see Pricing.
Sign up with a Gmail address and a password, or click “Continue with Google”. Then enter the verification code we email you to unlock your starter credits.
Click “Forgot password” on the sign-in page and follow the reset link we email you. Changing or resetting your password signs out all your existing sessions.
Go to Profile → Sessions to see and revoke each session.
1 credit = 1,000 VND. Top-up packs from 100,000 VND come with bonus credits.
Open the Credit wallet page, pick a pack or enter an amount (minimum 10,000 VND), then scan the VietQR code or transfer the exact amount with the exact transfer note. Credits are added automatically as soon as the payment comes in.
No. Only successful submissions are charged; credits held for the rest are returned when the task finishes or is stopped.
Yes: starter credits when you verify your email, gift codes, referring friends and the reward tasks shown on your dashboard.
Short answer, paragraph, multiple choice, checkboxes, dropdown, linear scale, multiple-choice grid, date and time, plus the “Other” option and multi-section forms.
Forms that require signing in with a Google account, limit people to one response, or include a file upload question.
Up to 20,000 responses per run; each account runs one task at a time.
No. The task runs on our servers; you can close the browser and check progress on the Submission history page.
No. It is simulated from the model you draw, for learning, illustration and testing your research design; it does not replace real survey data.
Treat it as a draft: check the sources, adjust the wording for your respondents and ask your supervisor for feedback before you send it out.
In SPSS choose File → Import Data → Excel, pick the data sheet and keep the first row as variable names; use the Codebook sheet to look up labels and codes.
Passwords are hashed with Argon2 before they are stored, so no one — not even an administrator — can see the original. Every connection is encrypted over HTTPS.
No. Your data is used only to provide the service; details are in our Privacy policy.
Send a request through one of our support channels, quoting the email you registered with; we’ll verify it and delete your account and related data as described in our Privacy policy.