# Secure Lox Plus vs ZSTL

The clearest difference is update cadence: ZSTL at every 2 months against Secure Lox Plus's every 15 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.

Secure Lox Plus ships an update every 15 months, ZSTL every 2 months. The most recent releases landed on June 24, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Secure Lox Plus | ZSTL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/zstl/id6745016964/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 5 MB | 44 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [E LOX INC](https://appshunter.io/developer/1114577399) | [召 李](https://appshunter.io/developer/1740123808) |

## What reviewers say

### Secure Lox Plus

[App page](https://appshunter.io/ios/app/secure-lox-plus/id6743289425)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Secure Lox Plus free?

Secure Lox Plus is free to download, with no in-app purchases.

### Is ZSTL free?

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

### Do Secure Lox Plus or ZSTL have ads?

Neither Secure Lox Plus nor ZSTL shows ads.

### Which is updated more often, Secure Lox Plus or ZSTL?

Secure Lox Plus ships an update every 15 months, and ZSTL every 2 months. Most recently, Secure Lox Plus was updated on June 24, 2026 and ZSTL on June 11, 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.*