Standard sticker,these are the usual examples of when you think of stickers they can be placed inside/outside/on glass the image/print will be facing  you when peeled off and applied, for example on a laptop, fridge, car bumper, door etc

Inside glass outside viewing is just that- Especially made for glass/windows to be placed inside glass/windows for outside viewing which is slightly more cost and harder to find. These stickers are usually applied to the inside of shop/vehicle windows for outside viewing, the sticker can be viewed from outside and cannot be peeled off/tampered with from outside. A good warning clearly visible on the glass/window before anyone enters the premises. I have sold some of these 20 years ago and they still look good and vibrant not washed out like some inferior quality stickers.

Both are durable and totally waterproof/weatherproof.

Please see example pics for the difference to avoid any doubt of a standard and Inside glass outside viewing sticker so you know, and to avoid disappointment.