1. That is SI,1970s,so all metric all the way ,no unc,unf,all pitch is 1.5-metric screw turn..that is SI unitary screw turners,turning tuners for the mordern internet1990 &beyond, android calls it spinner.The game is very hard, it's hard to see numbers you really have to focus and move your phone.
2. Also I would like to add that the "practice" and "game" will not help a lot of people your eyes need to be working at similar levels in order to see them properly so if you can't see these you might need a different pattern or glasses to help.I think there are some images that are not actually stereograms.
3. If the ads didnt cover the numbers i would deal with it but they do so its unplayable and the game is not worth $20 so 1 starIf you're a beginner, the two dots you're supposed to turn into three dots by learning how to properly unfocus your eyes, dissapear too soon.
4. Also I highly doubt that the developer will earn that much from an average user watching a few ads so maybe they should overthink their pricing policy.Ads cover the numbers on the quiz, spent $3 hoping it would remove the ads, it didn't.
5. The text option of the generator isn't really working and the whole process of generating the image can definitely be improved.
6. Edit: By text option I mean the option into the generator where you can write text and generate an image for thatOverall good.
7. I make a message or template, press the check mark, and the image or text doesn't carry over to the background selected.
8. I wanted to try the number game element, too, but the image was only available vertically and wouldn't turn horizontally when I turned my phone.
9. It lets you create 3 stereograms for free out of a picture or text, to do more you have to pay 5,49 €.
10. Since creating stereograms can be quite fun I think it's fair but bear in mind that if you don't use a prefab object or a text it can be quite tricky.
11. This used to be a free app that only let you create Stereograms but now you have to pay after making three and it's horrible quality.