Sudoku World vs Oretrace

This is an awesome Sudoku app game that allows you to play an unlimited amount of sudoku puzzles on your iOS devices. 【 Features 】 ⊲ There is no possibility to get twice the same puzzle since they are randomly generated. ⊲ Added new kinds of sudoku puzzles: X Sudoku, Super Sudoku, Jigsaw Sudoku, 16x16 Sudoku and Samurai Sudoku. ⊲ Added multiplayer mode of sudoku game: You can play/challenge sudoku game with your friends and other sudoku player on line. ⊲ Support !!!!!! GAME CENTER !!!!!!!, 25 Leaderboards and 20 achievements. ⊲ Five levels of difficulty. ⊲ Load/Save puzzle from/to the application database. ⊲ Statistic, it saves every finished puzzles automatically, that allows you to keep tracking your best played records for each level, you can restart it whenever you want to re-challenge it. ⊲ Pause/Resume which allows you are able to take a short break from the puzzle. ⊲ Undo/Redo the selected number. ⊲ Smart note, automatically put the related note on the field, or put all notes for all fields or clear them all with only one tap. ⊲ Auto/manual check for incorrect numbers. ⊲ Smart eraser to let you remove number on the field clearly and easily. ⊲ Hint, to provide you a easy way to find out current single note field, certainly a little penalty is required :-). ⊲ Keep device from sleeping, your iPhone/iPod no longer sleep while you are thinking in a puzzle. ⊲ Smart coloring fields, allows you to see the relation of each fields while tapping on it. ⊲ In game progress indicator, to show you current progress with a bar interface. ⊲ Compatible with iOS12.0 iPod, iPhone device, Retina Display for iPhone 6/7/8/X/XS (Max) support. ⊲ Customize your own background by picking up an photo from your own album. Any reviews and ratings are all appreciated, your comments are making this sudoku app become better!!

Dig your way to the core. Oretrace is a 3D excavation puzzle. Rotate the ore body, choose an entrance and uncover the cores inside at your own pace, with no move limit. Each block you remove leaves a number showing how many mines touch it. Scan uncertain blocks and plan your next move. Mines damage your drill and leave a visible scar; three hits end the round. Explore three ore sizes, from 125 to 343 blocks. Rotate freely and dig from all six sides. Use two scans per round and hold blocks to flag them. Review every mine and your excavation after a round, with optional layer views. Resume your saved round on the same device. Start with 100 coins. Rounds cost 20, 35 or 50 coins depending on size. Each core earns 4, 6 or 8 coins depending on size, and completing a round adds a 12, 18 or 20 coin bonus. Core rewards are kept even if the round is lost. Additional coins are available through in-app purchases. Coins never expire. Your coin balance and progress are stored on this device and do not sync across devices.