# UDBK vs LAI CAI

The clearest difference is device support: UDBK at 2 against LAI CAI's —. LAI CAI's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence 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.

UDBK ships an update every 2 weeks, LAI CAI every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | UDBK | LAI CAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 100 MB | 237 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [US Development Bank, Inc.](https://appshunter.io/developer/1829900709) | [Longrun Financial Group Limited (HK)](https://appshunter.io/developer/1893550320) |

## What reviewers say

### UDBK

[App page](https://appshunter.io/ios/app/udbk/id6749298389)

**Features:** macOS Compatibility

**In-app purchases:** none


### LAI CAI

[App page](https://appshunter.io/ios/app/lai-cai/id6762252029)

**In-app purchases:** none


## Frequently asked questions

### Is UDBK free?

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

### Is LAI CAI free?

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

### Which is updated more often, UDBK or LAI CAI?

UDBK ships an update every 2 weeks, and LAI CAI every 3 weeks. Most recently, UDBK was updated on October 17, 2026 and LAI CAI on October 16, 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.*