# Thrundrz vs Cal Import

The clearest difference is in-app purchases: Thrundrz at none against Cal Import's 1. Cal Import's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Cal Import sells 1 one-off in-app purchase. Thrundrz asks for nothing beyond the download.

Thrundrz ships an update every 3 weeks, Cal Import weekly. The most recent releases landed on October 28, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Thrundrz | Cal Import |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 104 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [sonny trocard](https://appshunter.io/developer/1859261521) | [Zhihao Yang](https://appshunter.io/developer/1466209376) |

## What reviewers say

### Thrundrz

[App page](https://appshunter.io/ios/app/thrundrz/id6756219738)

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

**In-app purchases:** none


### Cal Import

[App page](https://appshunter.io/ios/app/cal-import-csvics-schedule/id6758052713)

Easily import calendar events from CSV or ICS files directly into your iPhone's system calendar. Review events with a smart preview, map fields, and handle duplicates and recurring events. All processing is done offline for privacy.

**Highlights:** CSV and ICS file import, Smart event preview, Customizable field mapping, Duplicate event detection, One-tap undo import, Recurring event support, Offline processing

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cal Import Pro | $0.99 | one-time |


## Frequently asked questions

### Is Thrundrz free?

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

### Is Cal Import free?

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

### Do Thrundrz or Cal Import have ads?

Neither Thrundrz nor Cal Import shows ads.

### Which is updated more often, Thrundrz or Cal Import?

Thrundrz ships an update every 3 weeks, and Cal Import weekly. Most recently, Thrundrz was updated on October 28, 2026 and Cal Import on October 13, 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.*