Frequently Asked Questions
The most common questions about accounts, credits, students, tools, and billing — with short answers and links to where to learn more.
Updated on
Do I need a credit card to get started?
No. The free account includes 500 credits, granted only once, for you to try out the tools. There's no automatic renewal or billing on the free plan.
What languages does Nivo generate?
Exercise content can be generated in English, Portuguese (Brazil), and Spanish — you choose the language when creating the exercise. The dashboard is also in those three languages, and the choice is independent: you can use the dashboard in Portuguese and generate material in English.
Do my students need to download an app?
No. Everything runs in the browser on mobile or computer. To answer via public link, the student doesn't even need an account: they type their name and respond.
How do my students join the class?
With the class's 6-digit code, with the invite link, or with the QR code. Enrollment is immediate, with no approval queue. See Invite Students.
Can I use the content my way?
Yes. You choose the topic, set the level, and review the result. Nivo helps you prepare the material; the method and decisions are still yours. Every result can be edited by hand, for free.
Do the examples in this Help Center cost credits?
No. The interactive examples use pre-set content and work without an account. You can answer, see the correction, and start over as many times as you want.
How much does each generation cost?
Most tools cost 10 credits per generation. Two vary: audio (1 credit per 50 characters) and audio and video questions (5 credits per minute of audio, 15 per minute of video). The full table is at Cost per Tool.
Do credits expire?
It depends on the type. Reload credits are valid for 30 days from purchase. Subscription credits reset each renewal and don't carry over from one month to the next. The 500 from the free period don't expire. Details at How Credits Work.
If generation fails, do I lose the credits?
No. Credits are reserved before and only confirmed when content is delivered. If it fails, they go back to your balance automatically.
Can I cancel anytime?
Yes, from the dashboard, with no penalty. Cancellation takes effect at the end of the already-paid period: nothing extra is charged and you keep access until the final date of the cycle. Credits already in your balance stay available.
Do I get proof of purchase?
Yes. Payment is processed by Stripe, which provides receipts and invoices for each charge. Issuing electronic invoices is not yet available — check this before contracting if you need it for institutional reimbursement.
What payment methods are accepted?
Only credit or debit card, for now. No Pix or bank transfers.
How do I request a refund?
Through support, within 7 calendar days of purchase, with review by the team. The step-by-step is at Refunds.
Does AI make mistakes?
Yes, like any AI tool. Review the result before taking it to class — especially answer keys, numbers, and proper names. Every block has Edit Result, which doesn't cost credits.
Can I put my students' data in the tools?
Avoid it. A block's content is sent to the AI provider. Swap names for initials and don't use personal information that isn't necessary for the activity. See Privacy and Student Data.
Can I remove a student from a class?
That action doesn't exist yet. The alternatives are to deactivate the class, archive it, or create another class with the right students. See Create a Class.
Can I set a deadline?
There's no deadline field in Nivo. Agree on the date via the class wall or write it in the exercise cover description.
I still have a question
Write to us via the support form — it works with or without an account.