TickTick is among the best to do list apps on Android. It works a lot like Wunderlist, actually. You can make lists, share tasks with other people, organize your tasks in various ways, get reminders, set recurring tasks, and more. It’s also highly modular. That helps with organization. The widgets aren’t half bad either. There is a pro version, but it adds things like calendar support and other additional features. The free version of this is far above what most other to do list apps offer. It’s also clean, easy to use, and it’s great for small teams or family use. It’s technically not a free app. However, the free version functions better than most free to-do list apps. Don’t worry, you won’t need the premium version except in extreme cases.
You might know Fitbit from its popular fitness trackers, but the app that powers those devices works well on its own, too. Using your just your smartphone (assuming you meet the minimum hardware requirements), this fitness app can count steps and log activities to help you achieve daily goals. There are also social features, so you can compete against your friends. It's a must-have (really, you must have it) for Fitbit users, but also a smart choice for anyone looking to be more active. Droid App
This is one seriously powerful app. It also works on most Android devices. You simply download the app and then enable it. From there, you can ask it whatever you want. It also supports a variety of commands. You can control lights, ask about population control, and it can even do simple math problems for you. There are a variety of products like Google, Bose QC II Bluetooth headphones, Home and Chromecast that extent the functionality even further. There is also a second Google Assistant app for those who want a quick launch icon on the home screen. The hardware stuff costs money, but Google Assistant is free. Amazon Alexa is another excellent app in this space, but it doesn’t support Google Android quite as much as we would like, yet.
Pinterest is a social network of stuff, a place to "pin" things that interest you on themed boards. The Android app offers a great way to gather images from around the web for making lists or just collections of stuff that catch your eye. You could use it to help redecorate your living room or even to help you choose a tattoo artist. It easily integrates with your browser for fast pinning, and you can view the pins of others for added inspiration. Droid Apps
Weather Underground combines a slick design with a focus on really useful weather information. We particularly like the ability to report weather conditions in your area and the extremely useful comparative forecasts that deftly show how conditions have changed since yesterday. With an accompanying set of useful widgets, it's the best weather app on Android. Droid App