# Previnet OTP vs LechlerTech App

The clearest difference is device support: LechlerTech App at 3 against Previnet OTP's 1. LechlerTech App also leads on iOS requirement (13.0 vs 16.6). 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Previnet OTP | LechlerTech App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 19 MB | 47 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Previnet S.p.A.](https://appshunter.io/developer/585612736) | [Lechler Spa](https://appshunter.io/developer/1016402768) |

## What reviewers say

### Previnet OTP

[App page](https://appshunter.io/ios/app/previnet-otp/id680474557)

This utility app generates unique, time-based verification codes for enhanced security when accessing web services. It supports multiple accounts and offers convenient activation via QR code or URL.

**Highlights:** Generates time-based verification codes, Provides enhanced security for web services, Supports multiple accounts, QR Code activation, URL activation

**Features:** macOS Compatibility

**In-app purchases:** none


### LechlerTech App

[App page](https://appshunter.io/ios/app/lechlertech-app/id6740816508)

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

**In-app purchases:** none


## Frequently asked questions

### Is Previnet OTP free?

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

### Is LechlerTech App free?

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

### Do Previnet OTP or LechlerTech App have ads?

Neither Previnet OTP nor LechlerTech App shows ads.

### Which is updated more often, Previnet OTP or LechlerTech App?

Previnet OTP ships an update every 3 months, and LechlerTech App every 3 months. Most recently, Previnet OTP was updated on October 11, 2026 and LechlerTech App on October 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.*