Taking part already?
The fastest way to reach us is inside the app: Settings → Contact us. Our replies arrive in the app.
Can’t open the app, or stuck before you have signed up?
Email smellita@weizmann.ac.il. Tell us your phone model and what you see on the screen. Never send us your recovery code.
Common questions
Who can take part?
Adults (18 or older; 19 in South Korea) with a normal sense of smell, in the countries where we are recruiting, using one smartphone for the whole study.
The app says I cannot take part.
We cannot tell you the reason. This protects everyone’s privacy. If it says we are not recruiting from your country, we are not recruiting there at the moment.
I didn’t get the SMS code.
Check that you entered your number with the right country code, wait a few minutes, and try again.
My notifications stopped.
Open SMELLiT: opening the app schedules your next notifications. If the app shows “Fix notifications” in Settings, tap it.
I missed a notification.
You have 15 minutes to open each one. A missed questionnaire is skipped, and the study simply lasts a little longer: it ends when you have answered 40.
Can I take a day off?
Yes: Settings → Freeze tomorrow. To change your hours, use Settings → Notification window. New times take effect the next day.
I have a new phone, or I reinstalled the app.
On the sign-up screen choose “Already have a user? Restore access with your recovery code”, then enter your phone number and the code. No one, including us, can recover or reset a lost code.
When do I get paid?
When you finish (or quit), request payment in the app. You get a GoGift gift card by email. Payment may take up to 10 days to arrive.
How do I stop?
Settings → Quit the study. You are still paid €0.25 for every questionnaire you completed (the minimum payment is €1, which is four questionnaires); the €5 bonus is only for finishing all 40.
How do I delete my account?
In the app: Settings → Delete my account. Without the app: see Delete Account.
What happens to my data?
See our Privacy Policy.