> For the complete documentation index, see [llms.txt](https://docs.quizsolverai.com/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.quizsolverai.com/doc/quiz-solver-app/usage-1/free-credits.md).

# Free Credits

QuizSolver Mobile gives you several ways to top up your credit balance **without paying a cent**. Open the **My Profile** screen in the app to find the *Earn free credits* section, then tap the action you want:

## Ways to earn

| Action                               | Reward           | Limit                              |
| ------------------------------------ | ---------------- | ---------------------------------- |
| **Watch an ad**                      | **+20 credits**  | Each time                          |
| **Leave a review** on the Play Store | **+30 credits**  | Once (one-time bonus)              |
| **Share on Facebook**                | **+5 credits**   | Once per day                       |
| **Share on X (Twitter)**             | **+5 credits**   | Once per day                       |
| **Invite a friend** who subscribes   | **+100 credits** | Per subscribing friend (unlimited) |

## How invites work

Tap **Share invite** in the *Earn free credits* section — you'll get your personal link (something like `quizsolverai.com/refer/XXXXXXXX`) which you can copy or share to any messaging app.

When a friend signs up using your link **and subscribes** to any paid plan, you earn **+100 credits** automatically. There's no cap — every subscribing referral counts.

{% hint style="info" %}
Free credit actions are designed to be **fair** — limits like *once per day* per platform exist to prevent abuse. If you hit a limit, come back tomorrow.
{% endhint %}

## Need help finding the section?

The *Earn free credits* section is on your **My Profile** tab (bottom navigation, rightmost icon). Scroll past the plan card to see all available actions.