If your target demographic is "developing countries and/or remote locations" then some basic issues need to be clarified. How likely is your demographic to have easy access to both the Internet and devices that can access it? Is the app able to translate from the user's native tongue into English or whatever other language other app users may be comfortable with?

Well people can write garden journals in their own language and in the future i plan to translate the website in multiple languages. Next to that Gardenerplanet.com is also ment to be used by gardeners from Europe and the United States