How to Install nds4iOS Emulator
Step 1. Open safari and visit iEmulators.com > tap the “apps tab” > scroll down until you see the nds4iOS emulator.
Step 2. Tap nds4iOS and install, wait a couple seconds and tap install again.
Step 3. Once the emulator downloads open it up, back out, go back into safari and navigate to Coolrom.com.
Step 4. Look for your favorite nds game(s) here, or one you want to download. You will need to open the nds ROM files (sroll down to the Nintendo DS category.)
Step 5. When you find your favorite ROM game, tap the game to > Scroll down > tap on the download tab. Give it a couple minutes to finish.
Step 6. When your download in done, you’ll need to tap “Open in nds4iOS” on the top right-hand side. This will download your game into the nds4iOS emulator.
Step 7. Once you have completed the aforementioned steps, your game will open the nds4iOS Emulator and, either, you’ll see the game loaded in the emulator, or the game will start. (If your game didn’t start, simply tap the game name to load it to begin playing.)
Note: Make sure to open the nds4ios emulator after it’s done installing, before you download your roms. The default settings for the emulator should be fine to run the game at full speed. Nds4ios will run best and smooth on Apples latest devices.