- Dav2You
- Davenport Energy
- Davey
- Davez
- Davi
- DAVIDmobile
- David®
- Davinci Live
- DAVINCI-MOBILE
- DavinciMobile
- Davivienda Honduras
- Davivienda Panamá
- Daviz
- DAW Control
- DAW Field Service
- Dawam
- Dawammy دوامي
- Dawamy Employee
- Dawamy Management
- Dawar
- Dawmt
- Dawmt Kiosk
- Dawn - Minimal Calendar
- Dawn FurrowTechnik
- Dawn Simulator: Radio Alarm
- DawnLight - Sunrise Alarm
- Dawurobo
- Day Calculator Elite
- Day Count .
- Countdown Zähler & Tage Zählen
- Day Counter
- Day Counter & Countdown
- Day Counter — Ereigniszähler
- Day Interpreting
- Day of Week Genius
- Day Off - Leave Tracker & PTO
- Day One
- Day One – privates Tagebuch
- Day Planner: Plan Your Time
- Day Stats – Your Goal Tracker
- Day To-do
- Day Tracker : Hours Calculator
- Day Translations
- Day Zero - Event Countdown
- Dayberry
- DayBook's
- Daybook Journal – Diary
- DAYBOX
- Daybreak: Time Tracking
- DayCalc - Rechner
- DayCalc Kalender
- DayCalc Pro - Taschenrechner
- DayCape
- Daycare Assistant Daily Sheets
- DaycareWebWatch
- DayCircle - Day counter
- DaycareWebWatch
- DayCircle - Day counter
- DayCount
- DayCounter (D-day) Countdown
- DayCounter365
- DayDay - Zeitverwaltung
- DayDistance
- DayEntry - quick diary, journal for Evernote
- Dayflect
- Dayforce
- Dayforce Learning
- DAYGO
- Dayliff App
- Daylight - Sunrise and Sunset
- Daylist - Build Good Habits, Track Your Progress
- Daylist – Tägliche Aufgaben
- Daylite
- Dayman
- Daymate
- DayMemo - Handschrift Notizblock
- Daymera
- DayMinder
- DayMore: Modern Diary
- Daynamica
- DayOne: Productivity
- Daypiece - Daily Planner
- Daypractice