Currently, the accessibility to the Snap Receipt feature may vary by location. It is currently accessible in a few countries, including Australia, Canada, the United States, and the United Kingdom. I advise looking for a third-party tool that will let you capture receipts if you have a different version.
In the interim, you should consider manually attaching files to your transactions in QBO. For more information on using this feature, see this article: Add or delete attachments in QuickBooks Online.
For Android devices:
Click the Menu button.
Select the Gear icon.
Scroll down and then choose feedback under the Help section.
Enter your feedback and product suggestions.
Tap Send Feedback.
For iOS devices:
Go to the Menu ☰ icon, then select Help & Feedback.
Select App Feedback.
Type in your feedback and product suggestions.
I've also included these articles to give you a general idea of what the app can achieve. You can easily explore the software in this way: