Thank you very much for your suggestions!

1. Default notification time. E.g. when I set time for a task, it would put a default - configurable time - notification. Todoist, for example, has option of default notification, and user can select any option. Users, that doesn't want can simply turn it off.
-- Thank you for the tip. We'll discuss about this.

2. Showing only one recurring task at a time. I don't want to see other tasks, unless I check the closest. I have reminder to brush teeth every day. And it is shown both in today and tomorrow. It' annoying. The other competitors work the way I described.
-- You need only to see the one in Today, I understand. But when you preview things to do tomorrow every evening, it is necessary to see every piece of tasks arranged. We don't show more in Scheduled, but the one in Tomorrow is of necessity.

3. Projects hierarchy. That's really cool stuff. Give the option, and people will find the way to use it.
-- Do you mean projects can be shown one after another? or do you need more layers for tasks?
If the former, you may sort projects one after another so that if you group by projects, the tasks in time lists (such as Today) will be shown with the first project first.
If the latter, we have goal - project - task - subtask, which we think can meet almost all the needs, could you please tell us your scenarios that you have more needs out of the four layers?

4. Next. Is it possible to give an option, to pin a filter in "Focus". It's great that I have option of hiding unnecessary boxes. But puting there necessary ones would be great.
-- If you don't want to see projects or contexts, you may fold these ones so that the filters may be presented just under the Focus part. The pin feature will be discussed, I've written it down.

5. Changing interface. Attached suggested interface. The main idea is to reduce, even get rid of unnecessary page openings. Single-page concept.
-- Good shot! We'll discuss about this. This is very likely to be implemented.

Thank you very much!
We'll seriously consider your suggestions!
We've planned to redesign and add most of the features in both desktop and web version within this year. And for the current few months, we'll first focus on phone versions.
Thank you again!

1. Default notification time. -- Thank you for the tip. We'll discuss about this.
-- Great! Looking forward it.

2. Showing only one recurring task at a time. -- ...We don't show more in Scheduled, but the one in Tomorrow is of necessity.
-- Let me not to agree with you. Attaching file, showing, that recurring task is everywhere in Scheduled.

3. Projects hierarchy. That's really cool stuff. Give the option, and people will find the way to use it.
...could you please tell us your scenarios that you have more needs out of the four layers?
It's about nesting one project in another. You can call it "Folder" may be. I use it for grouping personal projects and work projects. When choosing the option, I see all Personal projects and their tasks. Helps to keep concentrated.

4. Next. Is it possible to give an option, to pin a filter in "Focus". It's great that I have option of hiding unnecessary boxes. But puting there necessary ones would be great.
-- If you don't want to see projects or contexts, you may fold these ones so that the filters may be presented just under the Focus part. The pin feature will be discussed, I've written it down.
I'm aware about Filters, but pinning would be nice. It's great you'll consider this.

5. Changing interface. Attached suggested interface. The main idea is to reduce, even get rid of unnecessary page openings. Single-page concept.
-- Good shot! We'll discuss about this. This is very likely to be implemented.
Glad I could help :)

@mabbasov Thank you very much for your explanation!

2. Showing only one recurring task at a time. --Let me not to agree with you. Attaching file, showing, that recurring task is everywhere in Scheduled.
---- Oh, you mean in Calendar. We don't show them all the time in Scheduled list, but in calendar, if you don't show them, why do you go to calendar? You might miss them, since some repeat daily, some weekly, etc. I haven't seen any calendar that doesnot show recurring tasks, Google Cal and iCal both show.

3. Projects hierarchy. That's really cool stuff. Give the option, and people will find the way to use it.
...could you please tell us your scenarios that you have more needs out of the four layers?
It's about nesting one project in another. You can call it "Folder" may be. I use it for grouping personal projects and work projects. When choosing the option, I see all Personal projects and their tasks. Helps to keep concentrated.
---- Good point! Then you may use filter now. You filter by searching in advanced mode, add conditions like, choosing 5 projects, Group by Project, Sort by Deadline, then add the filter name say "Personal Exercises". Then the filter can be found in Filters list, at all platforms.

4. Next. Is it possible to give an option, to pin a filter in "Focus". It's great that I have option of hiding unnecessary boxes. But puting there necessary ones would be great.
-- If you don't want to see projects or contexts, you may fold these ones so that the filters may be presented just under the Focus part. The pin feature will be discussed, I've written it down.
I'm aware about Filters, but pinning would be nice. It's great you'll consider this.
---- We‘ll discuss about it.

Thank you so much!

@Kassy
Hi, Kassy!
Can you please update me on status of the stated above suggestions?

@mabbasov Thank you for your follow up!

We've been updating features on iPhone version and Android version, and meanwhile we've been designing the new version of web and desktop, in which we're considering your ideas.
This year, we're making total redesign and redevelopment on all platforms, so it would not that quick, and we have to make priorities first to the basic features.

1. The default reminder choice will be added.
2. How do you think of my suggestion of using Goal instead of your folder? Or how about using Filter instead, as I mentioned previously?
3. You wanted to pin Filter in to Focus. But that could make Focus too crowded. Do you have many filters? If you don't use so many filters, leaving the only ones under 'Filters' could be more eye-catching.

Look forward to your thoughts.
Have a nice day!

By the way, I got some new suggestions:
1. Make projects/filters/goals/contexts draggable, so I can reorder them myself. It's annoying I can't do it, and the important project is down there somewhere, under 20 projects.
2. Possibility to make multiple contexts to a task. Yesterday I couldn't find it.
3. Keyboard integration. Hotkeys to add task, project, setting a subtask. assigning context, project, start/end dates. adding notification time. Advanced users rarely use both keyboard and mouse. They use either keyboard, or mouse. Making them use both - you creat inconvenience.

@mabbasov Thank you very much for your understanding!
Yeah, things don't go that fast, just as you said, tasks are always broken into small ones, and they're so many of them. In spite of that, we are pushing things forward, one step by one step, along the process of which we should never forget the wonderful ideas and perspectives provided by our dear users like you!
1. As for folders, would you set up a goal called, say, 'separate personal tasks', and put your lonely tasks there?
2. Pinning filters. Do you use the latest version of Doit.im for iPhone? If yes, you may see the key menus at the bottom bar of a task list. Later, we're planning to let you pick the menus you like. If you like, you may check the filter you like and make it show here, which would make things convenient.
3. They can be dragged to be reordered in their list, that is, projects can be dragged in Projects list. Contexts and Goals can, too.
4. Possibility to make multiple contexts to a task. Not now. But I am myself wishing this could be realized. We'll push this need to be developed.
5. Keyboard integration will also be discussed.
Thank you so much!
Have a nice day!

Hey, guys!
Any news? There hasn't been any update of Android and Web for a pretty long time.

@mabbasov Thank you for your follow up! Have you joined the test version of Android, which will release a new version soon?

@Kassy, hi! Nope, didn't have any chance. Isn't it too late to join?

@mabbasov Thank you for your reply!
It's OK to join now. Please be notified that new test version of Doit.im for Android will be sent via HockyApp from now on.
If any problems, please feel free to contact us.
Nice day!

Over a year have passed. No news at all. What new functionality have you add?
Same old interface. Same old and uncomfortable adding tasks.
Hopes have died, and apparently I'll be looking for alternative offers.

@mabbasov Sorry for you Android users. Android version is in development but at a slow pace. You may go around to check other apps if the current version can't meet your need, but if you have any ideas on the product, you're very welcome to come back and tell us any time.
Nice day!