Locked in which way? Could you explain what exactly feels non-transparent to you? Your data is stored in encrypted form on your device and you always have access to it. We provide a local API and you can export your data at any time. If you expect it to be stored in plain text then our app may not be the right fit for you.
Our mobile apps are not built for math editing and they will not support it in the near future.
Regarding scripting, we have a local API and people are already building automations and similar tools.
What exact problems with exporting are you experiencing?