Fiddlebox is a box of small games: a block and line game, Sudoku, Solitaire, Nonogram, Minefield, 2048, Memory, Word Hunt, Slide 15, Ludo, and games for two players on one phone.
Fiddlebox is free because it shows adverts. There is a banner at the bottom of the screen, and now and then a full-screen advert after a round of the block game, 2048 or Memory. Adverts that give you something, such as an undo or extra time, only play when you tap to watch one, and every offer has a clear "not now". The four Easy games show no adverts at all.
Yes, from version 1.1 on iPhone and iPad. The coin shop sells coin packs, a one-time Remove Ads purchase that turns off the banner and the full-screen adverts for good (reward videos stay optional), and a Starter Deal that bundles both. Nothing is locked behind a purchase: every game is free, and coins are still earned by playing or by choosing to watch a video. Purchases go through Apple, so you can restore them on a new device with "Restore Purchases" in the shop. The Android version has no purchases yet.
Open Settings on the main screen and tap Ad choices. Where the law provides a consent form, such as in the United Kingdom, that opens it; everywhere else it opens Fiddlebox's page in iOS Settings, where you can turn Allow Tracking on or off.
Progress is stored on your device, so deleting the app deletes it. Reinstalling over the top keeps it; uninstalling first does not.
Yes, both, in Settings on the main screen. The app also respects your phone's silent switch and the system Reduce Motion setting.
Tell us which one and what happened. Difficulty is something we tune based on what people say.
We usually reply within a couple of days.