• To-Do Calendar Planner 1
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To-Do Calendar Planner

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
- Sync your To-Do list with Google Tasks
- 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.

Category : Productivity

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Reviews (27)

Mar. B. Feb 4, 2022     

Well I finally figured out to click on the 4.99 on the To Do timleg version and my card had expired. I fixed that and paid 4.99 and all my events on my calendar were still in place and one reminder worked so far. I hope it continues! Sure would have appreciated the heads up about it as I wasted a lot of time I didn't have. Hope this helps others cuz I love this calendar.... that's probably why I didn't want to give up.

Man. Feb 14, 2022     

Opens to a flickering screen. A three-dot menu and other features show, but flickering continually. Unresponsive to touch. I've never seen anything like it. So obviously the app can't be used.

Cin. W. Jan 4, 2022     

This worked perfectly until 2022 now it will not work to add events to calendar. I don't know what is going on. I get a message saying "event added to calendar," but its not put on the calendar even after several attempts. I ran an update and its still not working!! Help!! I depend on this daily!!

Nik. M. Aug 4, 2019     

This app allows me to quickly switch a task to an event and vice versa. From a planning and reviewing perspective it is simply brilliant. The subtask facility in the Paid For version is great. I have found it highly intuitive to use and in most instances there is a way to do the things that I want it to do. Spend time exploring what it can do. This the best organisational app that I have come across. Many of the negative reviews are from users who haven't understood the app. Highly recommended.

A. G. u. Nov 30, 2018     

Love this app! Love having calendar, day planning, tasks and goals all in one app. I just have one question (or suggestion if it is not yet possible on the app) is there a way to simultaneously delete all completed tasks? Because I can't find a way to do it and it's annoying having to delete them one by one at some stage when it starts looking cluttered. Otherwise - an awesome app!

Ell. F. Apr 9, 2019     

I really liked this app's interface. The tasks are listed right under the weekly calendar. Tasks that aren't completed today are carried over to the next day automatically. Unfortunately, it looks like there is no way to set reminders for tasks. That knocks two stars off for me. I need that feature, so I'm looking for another tasking app to use now.

A. G. u. Dec 13, 2018     

Love this app, tried many but none as good. Has best customisation and widget options, needs a little more refinement but still the best ive tried. Also one of the only apps which, once installed, enables you to effortlessly share anything to it such as photo, email, textmsg. No others do. Suggestion, would u please allow me to tick off appointments as i am able to do tasks, that would be really great.

che. b. Mar 24, 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

Ray. K. Sep 9, 2019     

The app syncs from google to the isotimer calendar direction okay. But adding events directly to the isotimer calendar gets overwritten and is lost when google update sync happens. I created an account but the webpage is blocked with a redirect to the playstore open button for the application. So the program is useless for me at the moment. I sent details and hope to get an update. This is exactly what I have been looking for in a time organizer, too bad its broken.

Nic. O. Jan 26, 2022     

I've used this app for years. Love it until 1/19/22 then I stopped getting notifications. Everything is turnee on, I've checked all the settings, but can't get notifications at all

Nin. B. May 8, 2019     

I don't think the repeat function is working for the list. I keep trying to use it but it doesn't repeat the task. Also i don't see any custom color options for the widgets. It's just one color all the time. But other than that i like it. Pretty helpful in organizing my agenda and things to do.

Rhi. B. Sep 18, 2018     

This app is good for tasks and events and I'm finding it really useful - one thing that seems to need fixing is that it keeps forgetting when I've set a task to repeat! I have to keep going back and setting it to repeat again and again, which is really inconvenient

Tho. J. Apr 28, 2020     

This could have been the best calendar app ever. With an online website. I never got so far as to check if it synced with the website or not. When I keep having to reset an event that's already been saved. And also duplicating and multiplying events on the same day. Something is way off.

Tin. P. May 19, 2019     

I originally gave this 4 stars, but after a week using this, I am going to give it 2 stars. The app constantly stops and wants me to close it. The journal does not save or sync to another device. I bought the premium version today and sadly and very disappointed because it continues to give the same problems.

Kel. T. Mar 5, 2019     

This is a comprehensive planning system. It has everything I like. The tasks are linked to your goals. You can also create habits and mark your progress. It also has a note/diary section that you can record your day. Calendar and tasks can be backed up to Google, which is really important to me. The interface could be a little more attractive, but overall I like using it, which is why I paid for it.

abh. p. Dec 9, 2018     

This is a lot of features in one app. Which should be a good thing, but it fails to be user friendly and intuitive. The developer doesn't improve upon the features or make it user friendly. Premium version offers nothing more. This would be a hugely popular app, but for these drawbacks.

Món. L. Sep 23, 2018     

I was looking for something similar app, as my previous FAVOURITE and PERFECT application is no more available. This is like a shadow of this app, but I can not find any better like this. I'm trying to get familiar with this app, but I cannot imagine, how is it possible, that the added events simple DISAPPEAR from the calendar?????!!!!!!!!!!!! It happend already for several times, and it's very maddaning. That's why I'm asking, what I should do, or how to add event, to remain in calendar???? Thanks a lot!!!

E. A. R. Oct 8, 2021     

It is packed with features. One must be patient and try all features and settings to make this app their own. No other app I found offers costumasattion as complex as this one especially the paid version. Love the option to make this an offline calendar. Thank you developers.

P.. H. Jul 11, 2021     

Great usability, many features. I looked at dozens of calendar/task apps and this was in my top two. Has full month view with individual entries visible on each day box. Integrates tasks and calendar. These are two features almost no other app has together.

Pum. N. Feb 8, 2021     

Its a good app and very useful but I find it hard to find where was my note goes. I hope there's also some kind of notes widget so whenever we need to reopen or making a new one would be just in a click. That's just my suggestion, please let me know if there's any updates regarding this. Thank you and good work team!

San. M. Jul 22, 2020     

This app is very productive. Earlier free versions having facility of custom reminder tone setting for event(s). I'm suggesting that add this feature of custom/user tone reminder setting in next update. Current event reminder sound is unnoticeable due to very short time duration, though repeat alarm check is on.

Sub. K. Sep 17, 2018     

This app have four problems.1. App failed to attach photo , word , excel etc files except PDF files.2. The app does not have year view.3. In month view , event does not show in drop down . 4. No speciality found in its paid version.Therefore, 4 stars has been given. Overall the app is superb and being used as my favourite app.

Ste. R. Jan 9, 2020     

I love this app so much, I literally downloaded all the planner apps in the app store to find the best and this one is so great, but it's only problem is when you swipe left and right you get lost. It's weird to swipe and go ⏪♾⏪ MONTH VIEW ⏩ WEEK VIEW ⏩ DAY VIEW ⏩ AGENDA VIEW ⏩ MONTH VIEW ⏩ NEXT DAY ⏩♾⏩ It needs a break. [🛑 NOT THIS WAY] 🚫 MONTH VIEW ⏩ WEEK VIEW ⏩ DAY VIEW ⏩ AGENDA VIEW 🚫 [STOP 🛑] You choose your DAY from month view or something then swipe to the mode you want. Overwhelming.

She. S. Sep 25, 2018     

While this app's a lot ezier to simplify than English spelling, its real advantage is its graceful complexity, the smooth, logical way it blends & connects its considerable variety of functions & affects. Try it, but be patient; meanwhile just enjoy the digital minuette u'll eventually master.

A. G. u. Mar 23, 2019     

this app is very helpful for people who are organized and those who procrastinate. with so much to do, i find it smartest to create a daily agenda on this app. simple 30 minutes planning the night before and i can rest assured knowing I've planned my day/week and have set goals...this app is for businesswoman busy moms etc. links to your email account to transfer your schedule anywhere. try it! especially if you have big shoes to fill or a lot on your plate...you wont be disappointed!

Lis. Oct 2, 2021     

Many features amd very customisable. My problem is with the interface. I don't find the placement of many items logical, and the overall layout is not easy on the eye.

Lau. F. S. Aug 2, 2020     

I really want to like this app & use it at work. I don't want to be forced to use my phone or personal tablet. I tried to use it w/ my work computer & in settings it asked if I wanted to sync to my Google account. Clicked yes & found out that it's not supported by Google so you can't sync. It's clunky and note as helpful as I was hoping.