# Checarda vs ECHO Lock

The clearest difference is update cadence: ECHO Lock at every 2 weeks against Checarda's every 3 months. Checarda's advantage is iOS requirement (13.0 vs 15.6). 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.

Checarda ships an update every 3 months, ECHO Lock every 2 weeks. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Checarda | ECHO Lock |
| --- | --- | --- |
| 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 3 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 7 MB | 54 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Causeway Technologies](https://appshunter.io/developer/990510485) | [LOWE AND FLETCHER LIMITED](https://appshunter.io/developer/1792842721) |

## What reviewers say

### Checarda

[App page](https://appshunter.io/ios/app/checarda/id1230981646)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Checarda free?

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

### Is ECHO Lock free?

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

### Do Checarda or ECHO Lock have ads?

Neither Checarda nor ECHO Lock shows ads.

### Which is updated more often, Checarda or ECHO Lock?

Checarda ships an update every 3 months, and ECHO Lock every 2 weeks. Most recently, Checarda was updated on October 5, 2026 and ECHO Lock on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*