Hi Fifi, sorry for the delay in responding. The updated version of the EVM tool (EVM2) was released earlier in 2019. The EVM1 tool is still supported but will be phased out later in 2020.
Links to EVM1 and EVM2 websites are given below.
WHO EVM website: https://www.who.int/immunization/programmes_systems/supply_chain/evm
EVM1 website: https://extranet.who.int/evm/
EVM2 website: https://extranet.who.int/evm2/web
EVM2 uses an app for data-collection at health facilities. The app is freely available on Android, Windows, and Apple devices. Please refer to the EVM2 Assessor User Guide for instructions on how to obtain the app: https://www.technet-21.org/en/library/main/6094-evm-assessor-user-guide
Unfortunately, apart from the above there is little documentation on EVM2 at present, although we are hoping this will change shortly. There is, however, a public TechNet group for EVM2, and you can join it here:
https://www.technet-21.org/en/community/groups/401-evma2
Regards