# ツギドコ vs Alto Shared Time Calendar

The clearest difference is review sentiment: ツギドコ at 100% against Alto Shared Time Calendar's 0%. ツギドコ also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ツギドコ | Alto Shared Time Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/alto-shared-time-calendar/id6670268848/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Free | Free |
| Size | 1 MB | 10 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YUSUKE MIZUNO](https://appshunter.io/developer/1729948508) | [System Operator LLC](https://appshunter.io/developer/1847669767) |

## What reviewers say

### ツギドコ

[App page](https://appshunter.io/ios/app/id6499110752)

This app displays class schedules based on the current time, with a widget that changes its appearance. Users can customize the timings for each class period. It supports schedules from Monday to Saturday, covering periods 1 through 7.

**Highlights:** Real-time class schedule display, Dynamic widget that changes with time, Customizable class period timings, Supports Monday-Saturday schedules, Covers 7 class periods per day

**Features:** macOS Compatibility

**In-app purchases:** none


### Alto Shared Time Calendar

[App page](https://appshunter.io/ios/app/alto-shared-time-calendar/id6670268848)

Easily create a shared calendar that shows your availability as busy or free. Share this summary calendar with others to let them know when you're available, or view their availability to coordinate plans.

**Highlights:** Create summary Busy/Free calendar, Share availability with others, View others' availability, Integrates all your calendars, Coordinate plans easily

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

**In-app purchases:** none


## Frequently asked questions

### Is ツギドコ free?

ツギドコ is free to download, with no in-app purchases.

### Is Alto Shared Time Calendar free?

Alto Shared Time Calendar is free to download, with no in-app purchases.

### Do ツギドコ or Alto Shared Time Calendar have ads?

Neither ツギドコ nor Alto Shared Time Calendar shows ads.

### Which is updated more often, ツギドコ or Alto Shared Time Calendar?

ツギドコ ships an update every 3 days, and Alto Shared Time Calendar every 3 days. Most recently, ツギドコ was updated on October 8, 2026 and Alto Shared Time Calendar on October 15, 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.*