The calendar is the day laid out hour by hour: site visits, quote reviews, on-call blocks, and the daily stand-up, each tied to the customer it belongs to. Day, week, month, and agenda views, a week strip across the top to move between days, and a count of today's events and anything overdue in the header. Site visits are the heart of it: a visit on the calendar is a visit on the customer record, with the photos, notes, and diary entries from it attached afterwards.

Day for the hours, week for the shape of it, month for the load, agenda for the list. Swipe between days on the strip.
A site visit for Riverside opens the Riverside record. A quote review opens the quote. Nothing on the calendar is just a title.
The header shows events today and how many are overdue, so a missed visit is visible before the customer mentions it.
On-call windows and the daily check-in sit on the calendar with everything else, so the day is one view.
A technician standing at a door has a working memory of about one screen. If finding out where to be next takes a search and two menus, they text the office instead. The calendar is one tap from the bottom bar and the next event is the first thing on it.
Tying every event to a record is what makes it a CRM calendar rather than a diary: the visit is the thing the photos, the notes, and the quote hang from.
Free on the App Store. Or book thirty minutes with Mel and we will run your kind of job through it, end to end, on your phone.