# KL500A vs uServe Retail

The clearest difference is update cadence: KL500A at every 4 weeks against uServe Retail's every 27 months. KL500A also leads on iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KL500A ships an update every 4 weeks, uServe Retail every 27 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KL500A | uServe Retail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 27 months |
| Size | 31 MB | 23 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [磊磊 周](https://appshunter.io/developer/1708841052) | [Universal Processing LLC](https://appshunter.io/developer/1685968918) |

## What reviewers say

### KL500A

[App page](https://appshunter.io/ios/app/kl500a/id6470735168)

**Features:** macOS Compatibility

**In-app purchases:** none


### uServe Retail

[App page](https://appshunter.io/ios/app/userve-retail/id6474144846)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KL500A free?

KL500A is free to download, with no in-app purchases.

### Is uServe Retail free?

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

### Do KL500A or uServe Retail have ads?

Neither KL500A nor uServe Retail shows ads.

### Which is updated more often, KL500A or uServe Retail?

KL500A ships an update every 4 weeks, and uServe Retail every 27 months. Most recently, KL500A was updated on October 30, 2026 and uServe Retail on October 25, 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.*