Below are the 5 points which will help you to understand if your business need website or not.
⇒ Who are your target customers ? for example think by age group, business group or seperate them by level.
⇒ Are your target customers present locally or globally ?
⇒ Before you represent your products or services, can your customer access information easily
⇒ Do you want to build your own brand ?
⇒ Do you want to buil trust ?
⇒ If your business is service or product based and you have a large number of customers, then obiviously you need mobile app to facilitate them.