# TOPENS vs Graywind

The clearest difference is rating: Graywind at 2.2 against TOPENS's 1.4. Graywind also leads on review sentiment (17% vs 0%) and ratings volume (24 vs 7). 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.

Graywind holds the better App Store score, 2.2 against 1.4. Both are backed by a comparable volume of ratings — 7 and 24 respectively. Written reviews point the same way: 0% of TOPENS's written reviews are positive against 17% of Graywind's.

TOPENS ships an update every 2 months, Graywind every 3 months. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | TOPENS | Graywind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.4 (7 ratings)](https://appshunter.io/ios/app/topens/id1571414873/reviews) | **[2.2 (24 ratings)](https://appshunter.io/ios/app/graywind/id1617227172/reviews)** |
| Number of ratings | 7 | **24** |
| Positive reviews | 0.0% of reviews | **16.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 131 MB | 214 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Sanford Technology Co., Ltd](https://appshunter.io/developer/1571293797) | [Changzhou Graywind SmartHome Technology Co.,Ltd](https://appshunter.io/developer/1617227174) |

## What reviewers say

### TOPENS

[App page](https://appshunter.io/ios/app/topens/id1571414873)

This app provides a platform for managing your home's smart door machine. It enables convenient and fast communication between your mobile phone and the door machine, facilitating internet connectivity.

**Highlights:** Smart door machine management, Mobile phone and door machine interaction, Internet communication with door machine, Home intelligent platform

**In-app purchases:** none


### Graywind

[App page](https://appshunter.io/ios/app/graywind/id1617227172)

Control your smart home devices with ease. Set schedules for energy savings, manage your home remotely, and create custom scenes for different moods. Share device access with family members for a truly connected living experience.

**Highlights:** Timing settings for energy saving, Remote home control, Multi-scene and multi-mode settings, Control multiple smart devices, One-click device sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TOPENS free?

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

### Is Graywind free?

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

### Which has better reviews, TOPENS or Graywind?

Graywind is rated higher. TOPENS averages 1.4 out of 5 from 7 ratings, while Graywind averages 2.2 from 24 ratings.

### Do TOPENS or Graywind have ads?

Neither TOPENS nor Graywind shows ads.

### Which is updated more often, TOPENS or Graywind?

TOPENS ships an update every 2 months, and Graywind every 3 months. Most recently, TOPENS was updated on September 9, 2026 and Graywind on September 15, 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.*