I know this is a long winded post but hopefully I have covered all, any problems let me know.
This was done on my unrooted Android 14 tablet.
Open Lucky Patcher and click on Unsolved to get this Menu
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Select Menu of Patches and choose APK rebuilt for InApp and LVL emulation
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Tick the 2 options shown in this pic then select Rebuild the App
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Wait until it has finished and you should get this, select Go to file
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And then Reinstall untick and click Yes
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Then Install
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And then click Launch
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Then you will see Unsolved click Play and let it download first game click skip twice and then menu
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Then try to purchase something
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This will happen
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Go to Lucky Patcher and select Tools
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Then select Purchase sorter
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Then you will see this
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Change every item (scroll for all) to subscription and yellow $
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Then back to Unsolved and choose settings cog at top right corner to get this screen the click Restore Purchase
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You will get a Puchase successful
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You can then buy all you want including VIP
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If you try to buy something and get Purchase canceled just go to settings and Restore Purchase.
You can not sign in with Google but you can with Facebook, so when a new version comes out, in Unsolved go to settings, then Manage Account and then Save progress.
Then you can uninstall and reinstall Unsolved in the App Store and do the same in Lucky Patcher (you only have to repatch and install, Lucky Patcher still has purchases saved), when Unsolved has been installed just sign in and buy what you want.