What it can do
SUDS can make a changing internal experience easier to name and discuss. Clinicians commonly use it during exposure-based treatment and before and after coping tools. Some settings use 0–100; this app uses the shorter 0–10 version seen in the source worksheet.
What it cannot do
It is a single, subjective rating—not a diagnosis, a safety assessment, or a precise measure of one emotion. The same number may mean different things across people or moments. That is why this app also asks what kind of distress and activation you notice.
Your window of tolerance
The worksheet’s red-to-blue bands move from hyperarousal, through a green workable range, into hypoarousal. This app records that state separately because blue, low energy, or numbness does not necessarily mean low distress.
Using this alongside care
If you are doing exposure therapy or trauma work, follow the plan you made with a qualified clinician. Do not use this app alone to decide how intense an exposure should be or whether to continue it.