When comparing TickTick vs SynapBook, the Slant community recommends SynapBook for most people. In the question“What is the best cross-platform note-taking app?” SynapBook is ranked 12th while TickTick is ranked 41st. The most important reason people chose SynapBook is:
Using the tree structure, you can structure the content.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Create checklist for a task
On each task you can choose between a text description or a checklist.
Pro Cross-platform
It’s accessible on the web, via a Chrome extension, on Android (phone/tablet, with widgets), and on iOS.

Pro Flexible recurring tasks
Recurring tasks are simple to set, and can be created according to custom rules.
Pro Customizeable Android widget
You can change the opacity, themes, lists, and cosmetic features of the widget.
Pro Smart date parsing
You can type "buy milk tomorrow 5pm" it will turn into a task as "buy milk" and reminder set as tomorrow 5pm automatically.
Pro Multiple reminders
You can add up to five reminders for different time to a single task.
Pro Smart List
Allows you to set custom filters, making it easier to find tasks.
Pro Multiple reminders
Supports up to 5 reminders per task.
Pro Advanced sorting options
Tasks can be sorted by dragging and dropping them in the list.
Pro Google Calendar integration
You can integrate TickTick with Google Calendar.
Pro Lightweight app
TickTick is resource-light, which is great if you run multiple programs or are using an older device.
Pro Clean UI
TickTick takes a minimalistic approach in order to keep things simple.
Pro Easy to add tasks
Just start typing to add a task.
Pro Has a calendar view
Pro version of the software allows tasks to be laid out in an easy to overview calendar view.

Pro Supports #hashtags (labels)
Just click a hashtag to filter your labeled tasks.
Pro Description and checklist all together
Paid users can add description and checklist into a single task all together.
Pro Set list color
You can set a different color for each list.
Pro Free task tagging
Tags are a native feature; up to five tags can be applied to each task.
Pro Great support to recurring tasks
Easy to set recurring tasks and a lot of possibilities to do that.

Pro Share task lists for collaboration
You can share a list through an email or a shareable link.
Pro Location reminder
Remind you of a task when you reach specific location.
Pro Can set duration of a task
You can set starting and ending date and time for tasks.
Pro Follows Android design guidelines
The mobile Android app of TickTick follows the Android design guidelines for a familiar interface.
Pro Keyboard shortcuts
TickTick supports keyboard shortcuts that makes it easier to work with.
Pro Custom themes for pro users
Paid users can enjoy pro themes.
Pro Recover from trash
Easy to see and recover tasks from trash if you deleted them by accident.
Pro Print tasks
Easy to print any task you want to.
Pro Siri integration
You can add tasks via Siri.
Pro Folder with concluded tasks
Easy to see all concluded tasks by date of conclusion.
Pro Support team is great
Support team responds quickly.
Pro Integration with calendars by URL
Shows your events on other calendars (like Outlook) in your task list.
Pro Memo can be structured in tree form
Using the tree structure, you can structure the content.
Pro Nice sticky memo UI
It can support pop-up notes which can be used like simple Windows Sticky memo app.
Pro Both search-based Memo and organizing tree Note
Search-based notes and tree-oriented tree notes are supported separately, so can be used conveniently depending on the purpose.
Pro Offline mode support
Basically, it is based on server synchronization, but it can be used offline.
Pro Folding
Groups can be folded.
Pro Various text styles and decorations
General styles (bold, font size), highlighter and separator line, and more.
Pro Frequent updates
Bug fixes and additional new features rolled out frequently.
Pro Free
Cons
Con No native integrations with IFTTT or Zapier
The app doesn't feature native integration with these services, but you can use this functionality by fiddling with the custom email address that is provided by TickTick.
Con unable to sync with gtasks, only imports
Con Intelligent date and time entries don't work everywhere
In some apps, you can type "call Ben tomorrow at noon" and the date and time fields will be automatically populated with "tomorrow" and "noon". TickTick has recently implemented this feature, but it doesn't work flawlessly via the webapp or via a widget. The functionality does work good within the Android app, however.
Con Free version is limited
TickTick's free version is limited to 19 task lists, 1 attachment per day, and 1 collaborator.
Con Abo model is too expensive
Con Translation to Portuguese is not professional
For Portuguese speakers, the Portuguese translation seems very amateurish.
Con No search of non-latin languages in web
The web version has no ability to search non-latin languages (e.g. Russian, Greek).
Con Interface is not clear
It has too much information, causing some confusion sometimes.
Con Does not support iOS
This app only supports Android and desktop OS, but not iOS.
