Shall and will have the same meaning but are used in different grammatical context. In British English, shall is used for first person and will is used for 2nd person or 3rd person.
In American English, shall is not used very often. Will is used instead, especially in its shortened form. For example, I'll see you tomorrow.
Comparison chart
 | Shall | Will |
|---|---|---|
| Grammatical Usage | "Shall" is a formal way to express intended future action. The traditional rule is that to express a simple future tense shall is used after I (I shall leave at noon) and will in other cases, (Will you leave at noon?). | "Will" (in its verb form) is used to indicate future action for second or third-person (you, they). |
Examples
- I shall go to the movie tonight.
- We shall overcome.
- She will by happy to sign the contract.
- They will visit the mosque for evening prayers.
Affect 
Jealousy 
Revenge 
Few 
Homonym
Comments: Shall vs Will