I put screen protectors on all my electronic devices so I know what they look like. I can occasionally get small blisters if I haven't removed all the dust, but that's about it. I'm giving this little bit of information so that when I say there were bubbles all over the place, you'll know that it wasn't a small bubble of dust. It doesn't stick to the screen of my device. Big bubbles everywhere! Some of the edges didn't stick either. This was the only time this has happened to me (on different devices) which is why I'm saying the product is at fault, not my app.
Supershieldz (3 Pack) MacBook Pro 15 inch Screen Protector - High Definition Clear Shield (PET) for Model A1707 A1990 (2019 2018 2017 2016 Released)
13 Review
ProCase iPad Mini 4th and 5th Screen Protector: Tempered Glass Film Guard for 7.9" Apple iPad Mini 5 2019 / iPad Mini 4 2015 - 2 Pack
11 Review
16" Apple MacBook Pro 16 Late 2019 3072x1920, Intel Core i9 2.3 GHz, RAM 16 GB, DDR4, SSD 1 TB, AMD Radeon Pro 5500M, macOS, MVVK2LL/A, gray space, English layout
68 Review
π Premium 3-Pack PULEN Tempered Glass Screen Protector for Samsung Galaxy Tab S6 Lite SM-P610/P615 | 9H Hardness, Bubble-Free & Scratch Resistant | 10.4 Inch
12 Review
Graphic Tablet XP-PEN Deco 01 V2 Black
62 Review
Backpack XD DESIGN P705.571 black
32 Review
Backpack Xiaomi Mi City Backpack 2 dark gray
38 Review
16" Notebook Apple MacBook Pro 16 Late 2019 3072x1920, Intel Core i7 2.6 GHz, RAM 16 GB, DDR4, SSD 512 GB, AMD Radeon Pro 5300M, macOS, MVVL2LL/A, silver, English layout
55 Review