The subscription can last 1 month or an entire year depending on your plan.
1. If you cannot spend more than 10mins upto 60mins or more max.
2. Like watching, being interrupted by ads.
3. Or do not want pro code coach challenges.
4. Don't want to directly support sololearn.
Perhaps, don't bother. There's always next time. Unless, you don't want to. 🤷