They’re all skincare for sure, not to be mistaken with setting spray. With so many choices out there, do you need all of them? Read on to find out which one is more suitable to your own skin needs. 

Face Mist: Their first ingredient on the list might be water, but usually contains additional ingredients like humectant or emollient. It can be used anytime of the day, to refresh your skin and/or makeup. 
Recommended: Hada Labo Gokujyun Ultimate Moisturizing Face Mist (it contains Sodium Hyaluronate, which is more hydrating than Hyaluronic Acid)
Tower 28 SOS Daily Rescue Facial Spray (great for maskne as it contains Hypochlorous Acid aka HOCL to attack bacterias and inflammation)

Thermal Water: Some of you called it ‘expensive water’, well…it is. But it’s not an ordinary water inside a can spray. It comes with high minerals which is great if you have dry skin and irritation-prone skin. 
Recommended: Eau Thermale Avène Thermal Spring Water (which has the perfect nozzle that sprays evenly until the last drop)
La Roche-Posay Serozinc (thermal water with additional Zinc Sulfate and Sodium Chloride)

Mist Toner: It is what it is, a toner inside a spray bottle. It supposedly be used on clean skin after cleansing or double cleansing, to prepare our skin for the next steps (either serum or moisturizer). 
Recommended: Peter Thomas Roth Water Drench Hyaluronic Cloud Hydrating Toner Mist (it has the perfect nozzle to spray evenly, and it’s not sticky at all)
Trilogy Hydrating Mist Toner  (if your skin can stand essential oil and fragranced toner)