To-Do Calendar Planner

In-app purchases
4.4
35.3K reviews
1M+
Downloads
Content rating
Everyone
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About this app

The ultimate personal organizer!

• Use a powerful task list that supports batch operations
• Enjoy a fully scrollable calendar with daily, weekly, monthly and agenda view
• Define your personal goals and add tasks to them
• Set multiple reminders for tasks and events
• Divide your tasks into subtasks
• Set repeating tasks and events
• Use resizable Widgets in 4 different formats
• Attach files and photos to your tasks and appointments
• Sync your data between devices without effort
• Attach Google Maps locations to your tasks and events
• Use a daily journal to keep track of your life
• Never forget the birthdays of your friends
• Apply GTD principles to your daily life
• Schedule your tasks directly on the calendar
• Draw your own notes and attach them to tasks and events
• Convert your tasks, goals, notes and events into each other
• Create audio recordings and attach them to your tasks and events
• Access your data from a PC (web version www.isotimer.com)

Advanced features (Premium Upgrade):
- Plan your goals in project view
- Collaborate on tasks, projects, events.
- Track your progress with detailed progress reports
- Get organized with a daily step-by-step routine
- Use the Clean-Up feature to easily prioritize your task list
- Create backups and restore them
- Protect your data with a password
- Export your data to CSV files


With isoTimer you can:

...orient yourself toward your goals
...prepare each day with care using a calendar and a to-do list
...balance your professional and your private life
...focus on the most important tasks
...never forget ideas or events

IsoTimer organizer is the ideal companion for planning all parts of your life!
The perfect ToDo Calendar Planner for personal and business use.
Updated on
4 Sept 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Calendar and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
31.9K reviews
Virginia S
13 June 2024
I have ADHD. I have looked through many, MANY calendar & goal setting apps. There is no other like this. It is simple and efficient. Many apps feature subtasks - this is the *only* one I have found that allows you to create subtasks of a subtask. You can create goals, link task lists to goals, and schedule them directly into the calendar. The only complaint is that it can glitch and the sync function does not work for me. Otherwise it's gold.
1 person found this review helpful
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cheryl bowens
24 March 2021
This calendar is almost perfect for my needs. The journal, task, color coding and notes. The only thing I have to use another calendar for, is an ICS function were by I can share a date on the calendar and the other person doesn't have to copy and paste they just click the add button and it is added to their calendar. I do recommend this calendar
11 people found this review helpful
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Michael Sullivan
8 April 2023
if iset repeat for 28 days it correct but if i set for 30 (2 more days) it jumps 3 days (31 days) & lists the repeat to be monthly which makes me late. that why not 5 stars. but i like this cal app very much. it the only daily activity calendar app that lets me adjust times via slider right on the day pg w/o opening the event & messing with time circle:) (i think it is after setting the times selection option to classic mode)
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What's new

Bugfixes