# SD Scan Tool vs 掌上WMS

The clearest difference is iOS requirement: SD Scan Tool at 8.0 against 掌上WMS's 13.0. On price, update cadence, ads 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.

SD Scan Tool ships an update every 2 months, 掌上WMS every 5 weeks. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SD Scan Tool | 掌上WMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 3 MB | 65 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wetrusty](https://appshunter.io/developer/917655408) | [山东匠盟软件有限公司](https://appshunter.io/developer/1470205005) |

## What reviewers say

### SD Scan Tool

[App page](https://appshunter.io/ios/app/sd-scan-tool/id1259056999)

**Features:** macOS Compatibility

**In-app purchases:** none


### 掌上WMS

[App page](https://appshunter.io/ios/app/wms/id6451375639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SD Scan Tool free?

SD Scan Tool is free to download, with no in-app purchases.

### Is 掌上WMS free?

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

### Do SD Scan Tool or 掌上WMS have ads?

Neither SD Scan Tool nor 掌上WMS shows ads.

### Which is updated more often, SD Scan Tool or 掌上WMS?

SD Scan Tool ships an update every 2 months, and 掌上WMS every 5 weeks. Most recently, SD Scan Tool was updated on September 21, 2026 and 掌上WMS on September 17, 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.*