# udn 售票網 vs ChaosRegistry

The clearest difference is in-app purchases: udn 售票網 at none against ChaosRegistry's 4. ChaosRegistry's advantage is update cadence (every 3 days vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. ChaosRegistry sells 4 one-off in-app purchases. udn 售票網 asks for nothing beyond the download.

udn 售票網 ships an update every 3 months, ChaosRegistry every 3 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | udn 售票網 | ChaosRegistry |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 13 MB | 9 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [United Daily News Company Limited](https://appshunter.io/developer/541884173) | [Hsiangyun Yang](https://appshunter.io/developer/1876426828) |

## What reviewers say

### udn 售票網

[App page](https://appshunter.io/ios/app/udn/id999285134)

This platform offers a secure and convenient way to discover and purchase tickets for a wide variety of events. It aims to provide a seamless user experience for both event-goers and organizers, with innovative features for ticketing and event participation.

**Highlights:** Secure online ticketing, Convenient event discovery, Multi-device purchasing, Flexible payment options, Diverse event listings, Innovative ticketing solutions

**Features:** Vision Pro support

**In-app purchases:** none


### ChaosRegistry

[App page](https://appshunter.io/ios/app/chaosregistry/id6759028380)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Tokens | $0.99 | one-time |
| 600 Tokens | $4.99 | one-time |
| 1300 代幣 | $8.99 | one-time |
| 4000 Tokens | $24.99 | one-time |


## Frequently asked questions

### Is udn 售票網 free?

udn 售票網 is free to download, with no in-app purchases.

### Is ChaosRegistry free?

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

### Do udn 售票網 or ChaosRegistry have ads?

Neither udn 售票網 nor ChaosRegistry shows ads.

### Which is updated more often, udn 售票網 or ChaosRegistry?

udn 售票網 ships an update every 3 months, and ChaosRegistry every 3 days. Most recently, udn 售票網 was updated on November 1, 2026 and ChaosRegistry on November 5, 2026.

---

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