Solution to Transferring MelonDS .sav save state to iNDS:

Required Software:
- MelonDS on Android or PC
-Desmume on PC
iNDS on IOS or iPadOS

1) Copy the .sav file from MelonDS and paste it into the "Battery" Folder of Desmume on your PC. MAKE SURE THE Battery FFOLDER IS OTHERWISE EMPTY AND THE .sav FILE IS THE ONLY FILE IN IT. Also make sure the .sav File has the EXACT SAME Name as the ROM you are using on Desmume. For simplicity it is easiest if you use the same ROM on all Emulators for this process to work without too much renaming of the save files.

2) Run your ROM on desmume and the savestate will pop up as it would on console (it says load save in game with your Name and time played)

3) Congrats now you should be playing your Game on Desmume on PC.

4) Save the game ingame via pressing X hotkey save etc... wait till it sais you saved the game. while the game is still running you can open Desmume´s Battery Folder. there should appear a new .dsv File
with the exact same Name as your original .sav file.

5) Delete the .sav File so now there is only the .dsv MAKE SURE THE .dsv has TH EXACT SAME NAME as the ROM used by iNDS.

6) Copy the Battery Folder into iNDS Documents using iCloud.

7) Run iNDS.
select your ROM and press launch normally.

8)your save should Pop up in game with your Name and time played, click on it.

9) Congrats you have transferred your MelonDS savestate to IOS.