Some ideas: - which subjects make most sense to expand into (math, science, languages, ...) ? - maybe there is an opportunity to have former teachers create e

Some ideas: - which subjects make most sense to expand into (math, science, languages, ...) ? - maybe there is an opportunity to have former teachers create exercises for you (as freelancers). They have a lot of experience creating exercises, after all. - including subjects like math could make it easier to expand to other countries, though I don't know how different education systems are (maybe the UK, Germany, France would be interesting as they large markets but of course there are other factors like fragmentation of the educational system in Germany, for example) - as someone else has already suggested make it attractive to invite your classmates to your website. Rather than offering cash maybe free months (after their current subscription period) or discounts if enough students from one class sign up would be an option. - maybe offer more options to obtain classroom membership, e.g. sponsored by parents, more than n people from one class signing up, maybe even local businesses as school sponsors but that could have the negative side affects you mention about ads) - maybe offer "gift" memberships and free months if a group of students sign up at the same time, things like that? - would it be attractive to people offering private tutoring to have a "group" membership for their students (e.g. up to n students/year) which includes seeing results of their students) ? - maybe including other subjects provides an opportunity to raise prices, i.e. charge separately for additional subjects but offer a "all subjects included" premium membership. You have not included a link to your site (or I missed it ?), would love to take a look. Good luck with your business (and your parenthood!) :°) (I'm more of a developer who cough failed with businesses twice so my suggestions should be taken with a grain of salt)