Crossy Road
(Google Play store)
Crossy Road challenges you to crossroads, rivers, and train tracks without getting hit. Hop along and land on coins to boost your score.

CSR Racing 2
(Play store)
Compete in races against live players across the world with your custom-built supercars, including LaFerrari, McLaren P1, Koenigsegg One:1 and many more. Tune your rides for maximum speed and dominate the competition in global crew events.

Duet
(Play store)
Enter a mesmerising trance of co-dependence in Duet. The rules are simple: control two vessels in sync, survive against all odds and keep calm.

Fruit Ninja
(Play store)
Your objective: become a master of slicing fruit. Experience the thrill of setting a new high score in the fan-favorite Arcade mode as you focus on dodging bombs and slicing massive combos with the help of the special Double Score, Freeze or Frenzy bananas.

Temple Run 2
(Play store)
Navigate perilous cliffs, zip lines, mines and forests as you try to escape with the cursed idol.

AI Factory Limited Games AI Factory in Play Store()

Chess Free is the best free Chess game on Android and is currently the highest ranked in the free chess programs listed. Its first class tutor makes it great for both developing Chess Strategy and improving your chess skills. Completely free! This is not a demo and has no locked options.

Reversi Free is the best free Reversi game on Android! Flip your way to success in this classic game, where a position with the most counters can turn into an overwhelming loss! .. or a few remaining counters can still win the day! Try your hand at this unique popular game.Tic Tac Toe Universe brings you the complete XOX/Tic tac Toe family of games from 3×3, 4×4, 5×5, 6×6 to Gomoku/Renju/five in a row, all in one app! The gomoku is the strongest of the top gomoku programs. Try your luck against 12 animated opponents to see if you can take the #1 slots in the Tic Tac Toe game ladders!

Sharing the same top quality gameplay, graphics and interface as the rest of our app library, Sudoku Free is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again!  1500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, extreme levels.  Super smooth interface and graphics.

AI Factory’s Solitaire Free brings the popular card game Solitaire (also known as Klondike and Patience) to Google Play.

RobTop Games (In Play Store)

Jump and fly your way through danger in this rhythm-based action platformer.  Prepare for a near impossible challenge in the world of Geometry Dash. Push your skills to the limit as you jump, fly and flip your way through dangerous passages and spiky obstacles.

LEGO System A/S (In Play Store)

In LEGO Juniors Create & Cruise, boys and girls can use their imagination to create their very own LEGO minifigures and fun vehicles like cars, helicopters, and trucks.  Driving the colorful LEGO DUPLO® Train from station to station is any toddler’s dream. Your child will play the role of the train driver, load cargo, build bridges, stop at crossings, help passengers, refuel, and lay new tracks to steer the train safely around obstacles. You can play other Lego games of the same type from the play store.

Rusty Lake (In Play Store)

Cube Escape:The Cave game is about an old man is to enter into a mysterious Cave. A familiar guest needs your help before you descend deeper and deeper into Rusty Lake. Tap on the arrows to navigate inside the cube. Interact with objects by tapping. Select found items in your inventory and tap somewhere on the screen to use them.

Now some individual games that don’t have in-app purchases. Check yourself and let me know.

Cytoid  (Cytoid in Play store)

Cytoid is a music game (or rhythm game) where you can create, share and play your own levels.

Doom & Destiny Advanced ( In Play Store)

Doom & Destiny Advanced is the sequel, prequel, and reboot of Doom & Destiny. This might sound crazy, but in short, it means that you don’t need to play the first Do&De, but if you did, you’ll enjoy the wacky world and funny characters even more. Embody 8 different heroic spirits, equip gear, master skills, and character combinations to fight in turn-based combat 300+ different enemies and, while you progress into an over 30 hours main quest, feel free to explore 500+ locations looking for more than 100 hidden secrets.

Fighting Tiger-Liberal (In Play Store)
You are Gin, a Kung Fu fighter, and desperately want to leave your gang, but your gang has other ideas. You need to fight for your girlfriend and your life, which could end very soon if you make the wrong move. Special fighting styles: Liberal Kungfu (Chinese boxing, Sanda, Baji Quan). To knock enemies down with a protean attack.

GameStart Pixel Battle (In Play Store)
A mysterious figure has been sabotaging games, taking the fun out of them and making them almost impossible to play. GameStart’s resident gamer girl, Alyse, dives in to fix things and needs your help to get to the bottom of this. Fight your way through increasingly challenging enemies to unlock new stages and bosses. Hit high scores and collect stars to unlock more allies to aid in Alyse’s battle with this sinister character.

What do you think about the list? Can you give a list of good free android games without in-app purchases?

Android Studio
(https://developer.android.com/studio/)

This is the first app we are going to mention, as it is free and contains feature-rich Android app code editor and emulator. The Android studio has an inbuilt Emulator which installs and starts the apps faster than an actual device. The emulator can also use the apps to test its usage on various Android device configurations like phones, tablets, Android Wear, and Android TV devices.The hardware features such as GPS location, network latency, motion sensors, and multi-touch input are also supported. You can download the Android studio bundle having a size of nearly 700MB from Android developer website.

BlueStacks app player
(https://www.bluestacks.com)

BlueStacks app player is an android simulator working on the PC or Mac. You can play many games on this emulator. You can check their website to see the list of games available and supported by the app. They have a big list of a collection of available apps and sorted it using filters like, weekly top, monthly top, etc. You can check Bluestack’s blog to know how to install and run popular apps, as they gave a detailed description of how to install and run different games. You can see this Bluestack video to know how to install Bluestack on your PC.

AMIDUOS
(http://www.amiduos.com)

This is a popular Android emulator from the popular bios software manufacturer American Megatrends. Amiduos helps the easy switching between Windows and Android environments without installing the Android as dual boot. AMIDUOS  offers full Android experience, with all the features on the latest version of the Android operating system. It runs fast, looks crisp and sharp and performs with no limitations like a native Android running on your Windows hardware. Thanks to AMIDuOS 3D acceleration, you can enjoy better Android gaming experience in Windows PC. This app uses Windows OpenGL drivers for improved frame rates to support even the most graphics-intensive games. In this app, the applications run mainly in the native x86-mode to provide peak performance, while ARM emulation is only performed on an as-needed basis. This helps AMIDuOS to save power and extend battery life to the fullest. The app supports key peripherals and sensors of the Windows hardware, including high-definition cameras, audio, and microphone. Sensor support includes Ambient Light, Accelerometer, Gyrometer, Compass, and Orientation which gives you the full Android mobile experience. AMIDuOS gives complete Android tablet experience with multitouch and gesture support like Pinch and Zoom, along with a full-featured software keyboard. It also offers Compass and GPS functionality, allowing map navigation by multitouch. File sharing between Windows and Android is also supported in AMIDuOS, so you can share pictures, videos, and music between both OS modes with ease. AMIDuOS also supports SD card emulation and allows you to configure the SD card size with an easy-to-use configuration tool. You can view this nice video explains how to install Amiduos on your PC.

Andy
(https://www.andyroid.net)

Andy is a free app, that enables us to use up to date latest Android OS features on the desktop. With Andy, you can run Android on windows and also provides users with unlimited storage capacity, PC and Mac compatibility, and the freedom to play the most popular mobile games on a desktop. You can easily run all your communication apps like snapchat, Viber, WhatsApp etc. from your desktop. The best feature is you can use your phone as a remote control when playing games.

KOPLAYER
(http://www.koplayer.com)

Koplayer is a free Android Emulator for pc that enables all Android games and apps to run smoothly on Windows systems. Koplayer is built on x86 Architecture, support advanced features like OpenGL & hardware acceleration, run faster, more stability and compatibility than other Android Emulators. It supports multiple accounts, video recording, gamepad, and keyboard.

Droid4X (https://droid4x.en.uptodown.com/windows) is a full-featured Android emulator that you can use for anything, from video games like Clash of Clans or Subway Surfers to apps like Kitchen Stories or Tubemate. Genymotion (https://www.genymotion.com/)is more than an Android emulator, it is a powerful virtualization platform but with a price. You can use Menu player (http://www.memuplay.com) to play different games and apps on your PC. Noxplayer (https://www.bignox.com) also offers smooth gameplay on your Windows Pc. Remix os player (http://cn.jide.com/remixos-player) is also a good alternative. We are closing this discussion with Windroy. Windroy is a short form of ‘WindowsAndroid’, a project that combines the functions of YouWave and Bluestacks, and attempts to emulate Android in Windows. Its aim is to be able to run all Android apps and to be as easy to use as any other Windows application.

  The application is simple to use and features are very easy to understand and the transformation in the images are also nice. The application have several features like Auto Correct, Tune Image, Straighten and Rotate, Crop, vintage films effect and grunge effect. The Snapseed is originally developed by Nik Software. The company was acquired by Google and Google had been working for this app from a few month after acquiring the German-based Nik in September. Snapseed will run on any device with iOS 4.2, Android OS 4.0, Mac OS 10.6.8 Windows XP SP3, Windows Vista SP2, and Windows 7 SP1 or later operating systems.

  Snapseed makes any photograph extraordinary with a fun, high-quality photo experience right at your fingertips. You can easily enhance, transform, and share their photos with ease using incredibly advanced features from the leader in digital photography software. Built-in Google plus capabilities make it even more powerful to share your images with your friends and family. You can easily adjust your photos with a single tap using Auto Correct, tweak your photo to perfection with Tune Image, use Selective Adjust to enhance specific objects or areas in your photos, experiment with filters like Drama, Vintage, Grunge, and Tilt-Shift,  you can add Image Borders for a finishing touch,  and finally you can share your creations to Google+, email, and to other services.

  The main features are,  Auto Correct – Automatically analyzes your photo and adjusts color and exposure to perfection, selective Adjust – Make precise selections and enhancements to specific areas of your photos in seconds with Nik Software’s revolutionary U Point technology. Tune Image – Use Ambience to create depth and vibrancy that uniquely adapts to colors and textures. Adjust White Balance, Saturation, Contrast, more. Straighten and Rotate – Rotate 90° and/or straighten photos with simple gesture controls. Crop – Easily crop images to remove distracting parts of your photo with standard aspect ratios, or a free crop. In addition to this some creative enhancements are also available like, Black and White – Get that classic Black and White look with this darkroom-inspired filter. Vintage Films – Make any photo look like a vintage color film photo from the 50’s, 60’s or 70’s. Drama – Add style with a custom effect specifically tailored to your photos, ranging from subtle textures to wildly artistic effects. Grunge – Give your photos a totally unique, hip, and dingy look. Tilt-Shift – Create a narrow in-focus area designed to simulate depth of field, common in a Miniature Scene look. Details – Enhance details with traditional sharpening or the unique Structure control found in the Nik Software professional products. Center Focus – Draw attention to the subject of your photo by blurring and adjusting the brightness of the surrounding background. Organic Frames – Add stylized borders to photos for the perfect finishing touch.

Excited by seeing the features and want to try, get the Snapseed App from Google Play. Don’t forget o share your experience with our readers. What is your opinion about the new tool? Can you compare it with Instagram? Which one is better- Snapseed or Instagram ?

Before leaving the app to the internet the core app quality checklist for all of the devices and form factors that the app is targeting. If you cannot meet the quality checklist you can do a home work with the Core App quality guidelines from the Google. Most users develop app for smart phones and the same app is also distribute for the tablet devices also. It is not the right way, you should do some small  adjustments to your layouts, fonts, and spacing in the app to view nice in the tablet screens.  As the tablet devices comes in different sizes from 7 inch onwards, you should arrange the app to fit in the large canvas too. You can refer the guide on supporting multiple screens.

Unlike smartphones, on tablets the  single pane layouts lead to some unpleasant whitespace and excessive line lengths. So for design apps for tablets, use padding to reduce the width of UI elements. You can also  consider using multi-pane layouts. Another thing you consider is to take advantage of extra screen are which are available on the tablets. The tablet offers more space than smartphones, effectively use this extra space to fill with contents or arrange your existing contents in more expanded area. When considering layout the multi-pane layout offers better visual balance and provides more utility and legibility. You can experience it from the below image.

Another thing is that for a smart phone device, the user interface, menus are split up in to different groups for the easiness of navigation. In case of tablet you can merge and combine several views in to single attractive user interface as shown by the next image. Adjusting the icons, font sizes etc. are also important. Finally before going to deploy the tablet test it in an actual environment, if you are not able to obtain actual hardware devices, you should set up emulated devices (AVDs) to represent the most common form factor combinations. The Android Virtual Device (AVD) Manager is an easy to use user interface to manage your Android Virtual Device configurations. This is a device configuration for the Android emulator that allows you to model different configurations of Android-powered devices. The following screenshot showing an Android Virtual Device (AVD) Manager, from the main screen, you can create, delete, repair and start AVDs as well as see the details of each AVD. If you want to help with the Android emulator you can check ‘using the Android emulator’ guide.

You can also install Android on your PC or laptop to check it in a virtual environment. What is your opinion about this guide? Which method you are adopting the tablet app to ensure the necessary app quality?