# HaiLin vs Gerlsair

The clearest difference is update cadence: HaiLin at every 3 weeks against Gerlsair's every 2 months. HaiLin also leads on iOS requirement (9.0 vs 13.0). 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.

HaiLin ships an update every 3 weeks, Gerlsair every 2 months. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HaiLin | Gerlsair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hailin/id860466633/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 43 MB | 60 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HaiLin Energy Technology Inc.](https://appshunter.io/developer/860466636) | [Changsha Xizhen Electronics Technology Co., Ltd.](https://appshunter.io/developer/1754488118) |

## What reviewers say

### HaiLin

[App page](https://appshunter.io/ios/app/hailin/id860466633)

This mobile application provides remote access to Hailin IoT cloud services. It allows users to easily connect with and manage Hailin temperature controllers and sensors. Monitor and control your devices from anywhere.

**Highlights:** Remote device access, Connect temperature controllers, Manage sensors, IoT cloud service interface, Mobile device management

**In-app purchases:** none


### Gerlsair

[App page](https://appshunter.io/ios/app/gerlsair/id6504975752)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HaiLin free?

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

### Is Gerlsair free?

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

### Do HaiLin or Gerlsair have ads?

Neither HaiLin nor Gerlsair shows ads.

### Which is updated more often, HaiLin or Gerlsair?

HaiLin ships an update every 3 weeks, and Gerlsair every 2 months. Most recently, HaiLin was updated on October 3, 2026 and Gerlsair on October 9, 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.*