I have been using this app for years and think it’s really great as a Travel Blog app. The app is called Find Penguins and is a free app you can use on android, Mac and the web. You can either have it as open to the public or restrict users to family and friends and with each entry on the blog you can add up to 6 photos and write a daily diary. The app records where the entry was made via GPS on your phone so if you are travelling you get a record of your travels on a map.
Another nice feature of the app is that when you have finished the trip you can make a book using the entries you have made. The books can be edited and make a nice record of your travels. They are good quality and cost round £40 – watch out for notifications offering discounts on the books from time to time.
Check out the website https://www.findpenguins.com it’s free to download and use.