When comparing Momento vs Day One, the Slant community recommends Day One for most people. In the question“What are the best journaling apps for iOS?” Day One is ranked 3rd while Momento is ranked 5th. The most important reason people chose Day One is:
Between iOS and Mac.
Ranked in these QuestionsQuestion Ranking
Pro Tagging system
Momento allows tagging people, places & events, as well as creating custom tags for better management.
You can search through both imported and entries you've written yourself.
Pro Journaling and social in one place
Momento will combine both your personal journal entries and things you've shared on social networks.
Pro Passcode protection
Pro Effortless syncing via iCloud
Between iOS and Mac.
Pro Beautiful UI
Choice of color palette, icon glyph variety and animations create a design that is pleasurable to look at and does not get in the way.
Pro Easy to use
A high level of attention to detail, intuitive suggestions and automation of common tasks make this application very easy to use.
Pro Easy to to find old posts
With a good search and calendar view.
Pro All the features you need
You can create more than one entry in one day. You have many styles and font choices. You can add photos, tags to your entries. Optionally, you can have pass-codes, reminders. You can opt to automatically add location and weather data. Search function built-in. Ability to export a portion or all entries to PDF.
Pro 2012 Mac App of the Year
Pro Markdown support
Con Absolute lack of support
Developers will not help anyone exporting data, and will not answer customers asking for help.
Con Subscription based
For former users, it's $24.99 per year.
For new users, current discount is $34.99 per year while full price is $49.99 per year.
Con Lack of DropBox and iCloud syncing
Con Cannot local sync between Mac and iOS devices.
Con No encryption
Data is stored in a plain-text XML file.
Con Limited to one photo per entry
Currently, in both the mobile and Mac apps, only a single photo can be added to a journal entry.
Con Lacks Windows or Web support
Day One has no Windows or Web support, which can be inconvenient. For example, if users don't want to write a long journal entry on their phones and only have a Windows PC available as an alternative, they are not able to use it as a more practical alternative to write said post, not even using a web browser.
Con You need to purchase two separate subscriptions to sync your iPhone and Mac
Read this from Day One Support: http://help.dayoneapp.com/day-one-2-0/how-many-licenses-do-i-need-to-run-day-one-on-multiple-devices