An app for that?

[Chuck]

I use an app called Event Tracker. It counts days since an event and counts how many days to another event. It's configurable and has widgets for each event. I have the widgets on my home page for how long since my last O and how long to my next possible O.

[poor]

There is an app called Photo TLock that may be worth a look for self-lockers considering Carlilock or distance couples looking to set a deadline using a key safe.

[Yuusui]

I have been using the Photo Tlock app along with a Master Lock combination lock box. The box is easy to set a new combination. I then use the app to take a picture of the combination and set the duration until the picture is released. It works great to keep those pesky keys out of harms way.

[doctor_h]

A similar app to tha mentioned by ME's_hubby is ios' Last Time. It has same type of functionality as the previous mentioned app but it supports syncing across devices, adding notes, and password protection. My only desire is if I could password protect some of the topics but not all but it currently is all or nothing.

I track my last orgasm with note of events, the wife's last orgasm with note of events as well as more mundane items such as last time doc was treated for fleas or pool filter was backwashed or had complete teardown. All password protected because the all or none protection.