# ECHO Lock vs BURG App

The clearest difference is iOS requirement: ECHO Lock at 15.6 against BURG App's 17.6. 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.

ECHO Lock ships an update every 2 weeks, BURG App every 3 weeks. The most recent releases landed on July 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ECHO Lock | BURG App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/echo-lock/id6741067047/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free | — |
| Size | 54 MB | 58 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LOWE AND FLETCHER LIMITED](https://appshunter.io/developer/1792842721) | [BURG Luling GmbH & Co. KG](https://appshunter.io/developer/1603216412) |

## What reviewers say

### ECHO Lock

[App page](https://appshunter.io/ios/app/echo-lock/id6741067047)

This app enables battery-free locking and unlocking of smart locks using NFC technology on your smartphone. It offers a keyless and maintenance-free access solution, requiring compatible smart locks to function.

**Highlights:** Battery-free smart lock operation, NFC-powered smartphone unlocking, Keyless access solution, Smartphone tap to lock/unlock, Maintenance-free system

**In-app purchases:** none


### BURG App

[App page](https://appshunter.io/ios/app/burg-app/id6753740960)

**In-app purchases:** none


## Frequently asked questions

### Is ECHO Lock free?

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

### Is BURG App free?

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

### Do ECHO Lock or BURG App have ads?

Neither ECHO Lock nor BURG App shows ads.

### Which is updated more often, ECHO Lock or BURG App?

ECHO Lock ships an update every 2 weeks, and BURG App every 3 weeks. Most recently, ECHO Lock was updated on July 30, 2026 and BURG App 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.*