Hotellook - find hotel deals and discounts. I like it because you can filter the hotels with discounts or other promos for dates you need.
Skyscanner - find many variants, how to fly to other cities with interesting connections. Also, you can check prices by months.
Jetradar - find and buy cheap flight tickets and choose comfortable connections for you, if you need. Usually, I search routes and connections using Skyscanner, but buy always on Jetradar.
Foursquare - find bars, restaurants, attractions or “must see/must visit” places using the mobile app.
Swarm - collect your travel memories.I’ve been using this mobile app since the 2010 year and it’s “my travel diary”.
Google Maps - discover interesting places using “yellow backlight”. If you do not know what it is, check my article about this feature of Google Maps.
Uber - universal taxi app for most of the cities. Get your free first ride here.
Spendee - see how you spend your money. I using this IOS app more than 1 year, every single day. Probably, need to write the separate article about all features.
Apple Reminders - simple TODO-list for yourself. I using this app for simple and not important events. For example, when I cooking.
Apple Calendar - main calendar for any type of events. I using this app both: on Mac and Iphone. The calendar can be synchronized between multiple devices using Icloud. I scheduling my important goals, days, trips, meetings, work moments etc in this app.
Blankster Chrono - I’ve been using this daily planner since my 23rd birthday. You can check what is this in my review.
DigitalOcean - VPS-hosting for simple and complex projects. I using it with Dokku for projects tests. Get $10 bonus from me and set up your first project using this service.