There are several mobile apps available for share market trading and investment. Some of the popular ones include:

1. Robinhood: This is a commission-free trading app that allows users to trade stocks, ETFs, and cryptocurrencies.
2. E*TRADE: This app offers a range of investment options including stocks, bonds, and mutual funds, as well as research tools, news updates, and market analysis.
3. TD Ameritrade: This app offers a variety of investment options including stocks, bonds, ETFs, and mutual funds, as well as educational resources, trading tools, and real-time market data.
4. Acorns: This app allows users to invest their spare change by rounding up purchases to the nearest dollar and investing the difference.
5. Stash: This app offers investment options based on the user’s interests and beliefs, as well as educational resources, financial planning tools, and real-time market data.

Ultimately, the best mobile app for the share market depends on your individual needs and preferences, so it’s a good idea to research and compare different options before choosing one.