# Arpha vs Lockin  Smart

The clearest difference is review sentiment: Lockin  Smart at 43% against Arpha's 10%. Lockin  Smart also leads on update cadence (fortnightly vs every 7 months). Arpha's advantage is rating (3.5 vs 3.2) and iOS requirement (13.0 vs 15.1). On price, ratings volume, 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.

Arpha holds the better App Store score, 3.5 against 3.2. Both are backed by a comparable volume of ratings — 30 and 24 respectively. Written reviews complicate that: 10% of Arpha's written reviews are positive against 43% of Lockin  Smart's, so the app with the better star average is not the one people write more warmly about.

Arpha ships an update every 7 months, Lockin  Smart fortnightly. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Arpha | Lockin  Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (30 ratings)](https://appshunter.io/ios/app/arpha/id1468455803/reviews)** | [3.2 (24 ratings)](https://appshunter.io/ios/app/lockin-smart/id6739702442/reviews) |
| Number of ratings | **30** | 24 |
| Positive reviews | 10.3% of reviews | **42.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 189 MB | 280 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Fuwei Global Co., Ltd.](https://appshunter.io/developer/1468455802) | [LOCKIN (U.S.) INC.](https://appshunter.io/developer/1502077789) |

## What reviewers say

### Arpha

[App page](https://appshunter.io/ios/app/arpha/id1468455803)

Control home appliances remotely and manage multiple devices with ease. Set timers for automated functions and share device access with family members. Connect quickly and enjoy smart living.

**Highlights:** Remote appliance control, Simultaneous device management, Automated timer functions, Device sharing with family, Easy device connection, Amazon Alexa & Google Assistant compatible

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

**In-app purchases:** none


### Lockin  Smart

[App page](https://appshunter.io/ios/app/lockin-smart/id6739702442)

Manage and monitor your home remotely with smart unlocking, real-time lock dynamics, and two-way voice intercom. Features intelligent detection for people and packages, and integrates with smart home systems like Alexa and Google Home. Your privacy is protected with cloud-free biometric data storage.

**Highlights:** Smart unlocking with multiple key options, One-time and periodic password generation, Remote lock status viewing and control, Two-way voice intercom, Intelligent people and package detection, Matter ecosystem compatibility (Alexa, Google Home), Cloud-free biometric data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Arpha free?

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

### Is Lockin  Smart free?

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

### Which has better reviews, Arpha or Lockin  Smart?

Arpha is rated higher. Arpha averages 3.5 out of 5 from 30 ratings, while Lockin  Smart averages 3.2 from 24 ratings.

### Do Arpha or Lockin  Smart have ads?

Neither Arpha nor Lockin  Smart shows ads.

### Which is updated more often, Arpha or Lockin  Smart?

Arpha ships an update every 7 months, and Lockin  Smart fortnightly. Most recently, Arpha was updated on September 25, 2026 and Lockin  Smart on September 28, 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.*