HMRC allows 45p per mile for the first 10,000 business miles in a tax year, then 25p. This total assumes you are under that threshold. Keep it honest and keep it daily — undocumented mileage is money you cannot claim.
Nothing logged yet.
Everything saves to this phone first and syncs after. Lose signal in a van and nothing is lost — it goes up when you are back on. No customer names or addresses are recorded, only the outward postcode, so this holds no personal data.