# BT501 vs UrbMob

The clearest difference is update cadence: BT501 at every 2 weeks against UrbMob's every 11 months. 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.

BT501 ships an update every 2 weeks, UrbMob every 11 months. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | BT501 | UrbMob |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 11 months |
| Size | 12 MB | 19 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen King Song Intelligence Technology Co,.LTD](https://appshunter.io/developer/1497491651) | [Lebi Computer Technology Co. Ltd.](https://appshunter.io/developer/1004823999) |

## What reviewers say

### BT501

[App page](https://appshunter.io/ios/app/bt501/id6447668320)

**Features:** macOS Compatibility

**In-app purchases:** none


### UrbMob

[App page](https://appshunter.io/ios/app/urbmob/id6504702821)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BT501 free?

BT501 is free to download, with no in-app purchases.

### Is UrbMob free?

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

### Do BT501 or UrbMob have ads?

Neither BT501 nor UrbMob shows ads.

### Which is updated more often, BT501 or UrbMob?

BT501 ships an update every 2 weeks, and UrbMob every 11 months. Most recently, BT501 was updated on September 21, 2026 and UrbMob on September 14, 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.*