Refill Calendar vs DayStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Refill Calendar
Organize your schedule with a weekly vertical planner that supports customization of date labels and refill images. This app is designed for handwriting input and is optimized for Apple Pencil use on iPads.
- Weekly vertical schedule layout
- Customizable refill images
- Adjustable date label position, size, and color
- Optimized for Apple Pencil
- Handwriting input support
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Handwritten schedule organizer application. Weekly vertical type starting on Monday. You can change the refill image to your favorite refill by preparing it. You can set the position, size, and color of date labels, etc. Note Event information in the calendar application will not be reflected. Use the Apple Pencil.
DayStack
This app combines a to-do list, Pomodoro timer, and daily planner into a single, streamlined interface. Manage tasks, enhance focus with timed sessions, plan your schedule visually, and track your productivity progress over time.
- Task management with subtasks and priorities
- Customizable Pomodoro timer with ambient sounds
- Time blocking and visual daily planner
- Productivity statistics and progress tracking
- Offline functionality
- Kanban board view
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DayStack brings your todo list, pomodoro timer, and daily planner into one simple app. Stop switching between 3-4 apps — manage tasks, focus with timers, plan your day, and track your progress all in one place. TASK MANAGEMENT & TODO LIST Create tasks with subtasks, priorities, due dates, and tags. Organize with projects and categories. Drag to reorder. Mark complete with a tap. Simple and fast. POMODORO TIMER & FOCUS MODE Built-in pomodoro timer with customizable work and break intervals. Stay focused with timed sessions. Track how many pomodoros you complete each day. Ambient sounds to help you concentrate. STOPWATCH & COUNTDOWN TIMER General-purpose stopwatch and countdown timer for any timed activity. Save presets for quick access. Track time spent on tasks automatically. TIMEBOX PLANNER & TIME BLOCKING Plan your day with time blocks. Assign tasks to specific time slots. See your schedule at a glance with a visual timeline. Weekly overview included. DAILY PLANNER & REVIEW Start each day with intentions and goals. Review what you accomplished at the end. Rate your day. Build consistent daily habits with structured planning. STATISTICS & PRODUCTIVITY REPORTS See your productivity trends over time. Track completed tasks, focus time, and streaks. Daily, weekly, and monthly breakdowns to understand your habits. MORE FEATURES - Projects and tags for organization - Task priorities (low, medium, high) - Subtasks and checklists - Recurring tasks (daily, weekly, custom) - Due date reminders with notifications - Kanban board view - Search and filter tasks - Dark mode and multiple themes - Offline — no internet needed - No account required — your data stays on your device - Clean design interface - Backup and restore your data Whether you're a student studying for exams, a freelancer managing clients, or a remote worker organizing your day, DayStack gives you everything you need to stay organized, focused, and productive. Download DayStack now — your all-in-one productivity companion.
Screenshots
Verdict
The clearest difference is update cadence: DayStack at every 2 months against Refill Calendar's every 5 months. DayStack also leads on device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Refill Calendar ships an update every 5 months, DayStack every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Refill Calendar | DayStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 14.5 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | SHIN INABA | Gunawan Santoso |
Customer experience
Refill Calendar
DayStack
In-app purchases
Refill Calendar
No in-app purchases
DayStack
No in-app purchases
Questions
Is Refill Calendar free?
Is DayStack free?
Do Refill Calendar or DayStack have ads?
Which is updated more often, Refill Calendar or DayStack?
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