# iCalendar vs goASTAC

The clearest difference is price: goASTAC at Free against iCalendar's $2.99. goASTAC also leads on in-app purchases (none vs 10) and rating (5.0 vs 4.7). iCalendar's advantage is ratings volume (5.3K vs 2) and chart position (#75 vs unranked). On update cadence, ads, device support and iOS requirement there is nothing between them.

goASTAC is free to download; iCalendar costs $2.99 up front. iCalendar sells 10 in-app purchases, starting at $1.99 per year. goASTAC asks for nothing beyond the download.

goASTAC holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: iCalendar has 5.3K ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | iCalendar | goASTAC |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.7 (5.3K ratings)](https://appshunter.io/ios/app/icalendar/id492076105/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/goastac/id1596732062/reviews)** |
| Number of ratings | **5.3K** | 2 |
| Positive reviews | 72.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#75** | — |
| Size | 37 MB | 43 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Symfonies, Inc.](https://appshunter.io/developer/866948270) | [ARCTIC SLOPE TELEPHONE ASSOCIATION COOPERATIVE, INC.](https://appshunter.io/developer/1596732064) |

## What reviewers say

### iCalendar

[App page](https://appshunter.io/ios/app/icalendar/id492076105)

**Currently charting:** #75 Top Paid · Productivity (US App Store)

This app helps you manage your busy schedule with a user-friendly interface. Easily track daily, weekly, monthly, and yearly views, and color-code your events for better organization. It syncs with popular accounts and offers productivity tools for efficient event management.

**Highlights:** Daily, weekly, monthly, yearly views, Customizable event color-coding, Syncs with iCloud, Google, Exchange, Outlook, Yahoo!, Task manager with iOS Reminders sync, Drag and drop event rescheduling, Custom repeating events, Time zone support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar Store | $1.99 | per year |
| Religious holidays | $0.99 | one-time |
| Week Numbers | $0.99 | one-time |
| Moon Phases calendar | $0.99 | one-time |
| Holidays United States | $0.99 | one-time |
| Calendars - Pro Football USA 2014-2015 edition | $0.99 | one-time |
| Calendars - Pro Baseball USA 2015 edition | $0.99 | one-time |
| iOS Reminders | $0.99 | one-time |
| Calendars - Pro American Football Men United States 2015-2016 edition | $0.99 | one-time |
| Weather calendars | $1.99 | one-time |

**What reviewers like**

- 💻 Excellent calendar app
- 🎨 Customizable color coding
- 📅 Comprehensive monthly view
- 🗓️ Seamless syncing across devices
- 🔍 Detailed event information

**What reviewers complain about**

- 🐛 Occasional data loss or sync issues
- 🔍 Difficulty editing recurring events
- 🔒 Concerns about security and privacy
- 💰 Paid features that should be free
- 🕰️ Inconsistent event time display

**Reported bugs**

- Events disappearing or not syncing properly
- Inability to edit or update recurring events
- Incorrect time and location information
- Crashes or freezes when performing certain actions

**Requested features**

- Add ability to attach files to events
- Improve widget functionality and visibility
- Introduce family/group calendar sharing
- Expand color palette and theming options
- Add yearly view and better month-to-month navigation


### goASTAC

[App page](https://appshunter.io/ios/app/goastac/id1596732062)

Manage your home network with this app. Assign device priority, implement parental controls, and create guest networks. Monitor network usage, conduct speed tests, and customize your SSID for complete control.

**Highlights:** Assign device priority, Implement parental controls, Create guest networks, View network usage, Perform speed tests, Manage SSID

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iCalendar free?

iCalendar costs $2.99, and also offers in-app purchases.

### Is goASTAC free?

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

### Which has better reviews, iCalendar or goASTAC?

goASTAC is rated higher. iCalendar averages 4.7 out of 5 from 5.3K ratings, while goASTAC averages 5.0 from 2 ratings.

### Do iCalendar or goASTAC have ads?

Neither iCalendar nor goASTAC shows ads.

### Which is updated more often, iCalendar or goASTAC?

iCalendar ships an update every 3 months, and goASTAC every 3 months. Most recently, iCalendar was updated on September 25, 2026 and goASTAC on September 18, 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.*