# eSmartLock vs Kmilight

The clearest difference is in-app purchases: Kmilight at none against eSmartLock's 3. Kmilight also leads on review sentiment (40% vs 32%). eSmartLock's advantage is ratings volume (159 vs 5). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. eSmartLock sells 3 one-off in-app purchases. Kmilight asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 2.3 for eSmartLock against 2.2 for Kmilight. That said, the two scores are not equally well evidenced: eSmartLock has 159 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 32% of eSmartLock's written reviews are positive against 40% of Kmilight's.

eSmartLock ships an update every 2 months, Kmilight monthly. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | eSmartLock | Kmilight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (159 ratings)](https://appshunter.io/ios/app/esmartlock/id1453141716/reviews)** | [2.2 (5 ratings)](https://appshunter.io/ios/app/kmilight/id1605691215/reviews) |
| Number of ratings | **159** | 5 |
| Positive reviews | 31.8% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 66 MB | 72 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | +4 | 17+ |
| Developer | [Shenzhen Elink Smart Co., Ltd.](https://appshunter.io/developer/1257307745) | [Jiangsu Konsung Bio-Medical Technology Co., Ltd.](https://appshunter.io/developer/1137866872) |

## What reviewers say

### eSmartLock

[App page](https://appshunter.io/ios/app/esmartlock/id1453141716)

Control your smart locks remotely and eliminate the need for traditional keys. This app offers a convenient way to manage access and avoid the hassle of lost keys.

**Highlights:** Smart lock mobile client, Keyless entry, Remote lock control, Eliminate traditional keys, Avoid lost key hassle

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud Storage 30-day (7) | $1.99 | one-time |
| Cloud Storage 180-day (7) | $6.99 | one-time |
| Cloud Storage 360-day (7) | $9.99 | one-time |

**What reviewers like**

- 👍 Fingerprint unlock works reliably
- 🔒 Secure access control
- ⚡ Quick setup once working
- 📱 Apple Watch integration available
- 🔋 Long battery life

**What reviewers complain about**

- 🐛 Registration process extremely problematic
- 🐛 Bluetooth connectivity issues and frequent disconnections
- 📵 App crashes and won't load
- 🔐 Mandatory account registration required
- ❌ Poor user experience and confusing navigation

**Reported bugs**

- Cannot complete registration - password validation fails
- App won't accept valid passwords meeting stated requirements
- Bluetooth disconnects within seconds of connection
- Lock icon displays incorrect state (always shows unlocked)
- Fingerprint reader fails to save or update fingerprints

**Requested features**

- Apple Watch standalone app without phone requirement
- Widget integration for quick access
- Apple Home integration
- Single-button unlock without opening app
- Account password reset functionality


### Kmilight

[App page](https://appshunter.io/ios/app/kmilight/id1605691215)

This app synchronizes and manages health data from connected pulse oximeters and wrist-worn devices, including blood oxygen saturation, heart rate, and sleep monitoring. It analyzes sleep data, generates trend charts, and can display data from connected ventilators, though this data is for informational purposes only.

**Highlights:** Blood oxygen saturation monitoring, Heart rate tracking, Sleep monitoring and analysis, Health data trend charting, Ventilator data display, Data management and storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eSmartLock free?

eSmartLock is free to download, with in-app purchases available.

### Is Kmilight free?

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

### Which has better reviews, eSmartLock or Kmilight?

eSmartLock is rated higher. eSmartLock averages 2.3 out of 5 from 159 ratings, while Kmilight averages 2.2 from 5 ratings.

### Do eSmartLock or Kmilight have ads?

Neither eSmartLock nor Kmilight shows ads.

### Which is updated more often, eSmartLock or Kmilight?

eSmartLock ships an update every 2 months, and Kmilight monthly. Most recently, eSmartLock was updated on September 26, 2026 and Kmilight on September 21, 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.*