Pseudo is the root-word for many other words. Pro is the root-word for many other words. Poly is the root-word for many other words.
Tomatoes in gardens have an advantage over container plants -- they can spread their roots out far and deep in search of water. Even so, the same rule of thumb about even soil moisture applies. Tomato plants need about 1 to 1 1/2 inches of water each week to fruit, according to Ohio State University. There's no need to measure, so long as you maintain an even soil moisture. At the beginning of the growing season, this may mean watering in the morning until the soil is thoroughly damp and remains damp all day.
The containers also can't hold as much water as the soil surrounding tomatoes planted in the ground. You'll likely need to water these plants more than once per day. Start with a morning watering, then check on your containers throughout the day to see if you need to add afternoon and evening waterings.