Pitch accents are based on the number of moras in a word. What counts as a single mora is as follows.
1️⃣ All of the regular sized hiragana count as one mora (あいうえおかきくけこがぎぐげごさしすせそざじずぜぞ etc.)
2️⃣️ ん also counts as one mora.
3️⃣Small っ counts as one mora.
4️⃣ Combinations with small ゃ、ゅ、ょ　such as しゃ、しょ、じょ, count as one mora.
5️⃣ Vowel Extensions such as ー in コーヒー or かんけ（い）also count as one mora.

Pitch Rises and stays high.
Following particle is high.
Example: 大学が
_ - - - ・

Pitch starts high and drops.
Following particle is low.
Example: 天気が
- _ _ .

Rises at the beginning then drops at the end of the mora indicated by the pitch number.
Following particle is low.
Example: お菓子が
_ - _ .

Rises at the beginning, then drops at the end of the last mora.
Following particle is low.
Example: 花が
_ - .

Follows the pitch at the end of the previous word.
(*Special code for this App ONLY)

Follows the pitch at the end of the previous word. If Previous word is 平板式 drops on the first mora.
(*Special code for this App ONLY)

Asking questions typically involves a rise in pitch at the end of the sentence.
(*Special code for this App ONLY)

Includes 頭高型、中高型、尾高方.