Sale has ended but you can still get this app.
Download Control App for Nissan Leaf, Nissan eNV200 Now

Official Description

Monitors the charging process of the Nissan Leaf via the Internet and informs in the event of an error or when the desired battery level is reached.

After charging has started, you start monitoring using the app, which periodically monitors the charge status and displays it graphically, incl. average charging power and time of completion of charging.

If the desired target charge quantity is reached - as a percentage of the available battery capacity - or an error occurs, the app sounds an alarm.

When the charging process is finished, the monitoring is automatically switched off.

Compatible with NISSAN Leaf ZE0 and ZE1. Regarding the ZE2 I need someone for tests to find out the capacity number. The NISSAN e-NV200 is most likely also supported, I would be grateful for feedback here as well.

Requires NO ODB-II dongle.

Yes, this app costs money - but there is also a lot of work involved. I'll pay the money back even after a few days if the app doesn't meet your expectations.

(PS: The limited (only about 95%) availability of the Carwings/Connect EV API is somthing I cannot do anything about...)