# ZSTL vs Plug Seller Sourcing Tool

The clearest difference is update cadence: Plug Seller Sourcing Tool at fortnightly against ZSTL's every 2 months. Plug Seller Sourcing Tool also leads on ratings volume (38 vs 3). ZSTL's advantage is iOS requirement (12.0 vs 15.1). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.7 for ZSTL against 4.7 for Plug Seller Sourcing Tool. That said, the two scores are not equally well evidenced: Plug Seller Sourcing Tool has 38 ratings behind it against 3, so its average is the more settled of the two.

ZSTL ships an update every 2 months, Plug Seller Sourcing Tool fortnightly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZSTL | Plug Seller Sourcing Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/zstl/id6745016964/reviews) | **[4.7 (38 ratings)](https://appshunter.io/ios/app/plug-seller-sourcing-tool/id6785508937/reviews)** |
| Number of ratings | 3 | **38** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 44 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [召 李](https://appshunter.io/developer/1740123808) | [VENEL ULYSS](https://appshunter.io/developer/1883791962) |

## What reviewers say

### ZSTL

[App page](https://appshunter.io/ios/app/zstl/id6745016964)

This tool simplifies device access using QR codes and Bluetooth. It offers quick pairing and one-tap unlocking for various smart devices, ensuring a secure and efficient connection experience.

**Highlights:** QR code device recognition, Quick Bluetooth pairing, One-tap unlocking, Supports various smart devices, Secure encrypted connections

**Features:** macOS Compatibility

**In-app purchases:** none


### Plug Seller Sourcing Tool

[App page](https://appshunter.io/ios/app/plug-seller-sourcing-tool/id6785508937)

This app helps online sellers research products and track their business performance across Amazon, Walmart, and eBay. Analyze product profitability, monitor sales and expenses, and discover new sourcing opportunities directly from your mobile device.

**Highlights:** Product scanning and analysis, Profitability estimation, Sales rank and demand history, Store performance tracking, Inventory management, Deal feed for sourcing ideas

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

**In-app purchases:** none


## Frequently asked questions

### Is ZSTL free?

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

### Is Plug Seller Sourcing Tool free?

Plug Seller Sourcing Tool is free to download, with no in-app purchases.

### Which has better reviews, ZSTL or Plug Seller Sourcing Tool?

Plug Seller Sourcing Tool is rated higher. ZSTL averages 4.7 out of 5 from 3 ratings, while Plug Seller Sourcing Tool averages 4.7 from 38 ratings.

### Do ZSTL or Plug Seller Sourcing Tool have ads?

Neither ZSTL nor Plug Seller Sourcing Tool shows ads.

### Which is updated more often, ZSTL or Plug Seller Sourcing Tool?

ZSTL ships an update every 2 months, and Plug Seller Sourcing Tool fortnightly. Most recently, ZSTL was updated on October 24, 2026 and Plug Seller Sourcing Tool on October 31, 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.*