Ask HN: Alternate uses for an SMS task confirmation system

I developed an assignment system where every week people get assigned tasks and on monday a SMS gets sent out and they click 'yes/no' to confirm.

On Friday they get a confirmation sms that they are doing the task.

The system is really used for people in charge of scheduling to take the hassles of reminders.

The system kind of psuedo competes with the church system planning center online, but was curious if there might be any other industries this might be helpful for?

Currently it is being used for two churches (one being a paying church for about $5 a month), and was seeing if this could be scaled to other domains.