# Refill Calendar vs DayStack

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.

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.

## The numbers

| Metric | Refill Calendar | DayStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/refill-calendar/id1584545612/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 55 MB |
| Requires iOS | **14.5** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIN INABA](https://appshunter.io/developer/800415932) | [Gunawan Santoso](https://appshunter.io/developer/1843786072) |

## What reviewers say

### Refill Calendar

[App page](https://appshunter.io/ios/app/refill-calendar/id1584545612)

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.

**Highlights:** Weekly vertical schedule layout, Customizable refill images, Adjustable date label position, size, and color, Optimized for Apple Pencil, Handwriting input support

**In-app purchases:** none


### DayStack

[App page](https://appshunter.io/ios/app/daystack-todo-and-pomodoro/id6760934238)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Refill Calendar free?

Refill Calendar is free to download, with no in-app purchases.

### Is DayStack free?

DayStack is free to download, with no in-app purchases.

### Do Refill Calendar or DayStack have ads?

Neither Refill Calendar nor DayStack shows ads.

### Which is updated more often, Refill Calendar or DayStack?

Refill Calendar ships an update every 5 months, and DayStack every 2 months. Most recently, Refill Calendar was updated on November 3, 2026 and DayStack on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*