# Catendar vs SubSum

The clearest difference is in-app purchases: SubSum at none against Catendar's 2. Catendar's advantage is update cadence (every 11 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Catendar sells 2 in-app purchases, starting at $1.99 per month. SubSum asks for nothing beyond the download.

Catendar ships an update every 11 days, SubSum every 4 months. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Catendar | SubSum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/catendar-import-ics/id6753041569/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 2 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Codingmiao PTE. LTD.](https://appshunter.io/developer/1842123649) | [桥 汪](https://appshunter.io/developer/1658027527) |

## What reviewers say

### Catendar

[App page](https://appshunter.io/ios/app/catendar-import-ics/id6753041569)

Easily import calendar events from various sources, including .ics files, screenshots, and copied text, directly into your Apple Calendar. This app streamlines event creation by extracting details and allowing review before saving, even offering AI assistance for file repair.

**Highlights:** Import .ics files from various apps, Convert screenshots and flyers to events, Extract details from PDFs and HTML, Paste text to create calendar entries, AI assistance for file repair, Review events before saving

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feed the cat | $1.99 | per month |
| Buy a coffee | $4.99 | one-time |


### SubSum

[App page](https://appshunter.io/ios/app/subsum/id6754885566)

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

**In-app purchases:** none


## Frequently asked questions

### Is Catendar free?

Catendar is free to download, with in-app purchases available.

### Is SubSum free?

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

### Do Catendar or SubSum have ads?

Neither Catendar nor SubSum shows ads.

### Which is updated more often, Catendar or SubSum?

Catendar ships an update every 11 days, and SubSum every 4 months. Most recently, Catendar was updated on September 19, 2026 and SubSum on September 9, 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.*