# Reefer Assistant vs 光证小黑板

The clearest difference is update cadence: 光证小黑板 at monthly against Reefer Assistant's every 11 months. 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.

Reefer Assistant ships an update every 11 months, 光证小黑板 monthly. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Reefer Assistant | 光证小黑板 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Size | 33 MB | 71 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IQAX Limited](https://appshunter.io/developer/1599054143) | [EverBright Securities Asset Management Co.,Ltd.](https://appshunter.io/developer/1516210273) |

## What reviewers say

### Reefer Assistant

[App page](https://appshunter.io/ios/app/reefer-assistant/id1504043038)

**Features:** Vision Pro support

**In-app purchases:** none


### 光证小黑板

[App page](https://appshunter.io/ios/app/id1542010166)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reefer Assistant free?

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

### Is 光证小黑板 free?

光证小黑板 is free to download, with no in-app purchases.

### Do Reefer Assistant or 光证小黑板 have ads?

Neither Reefer Assistant nor 光证小黑板 shows ads.

### Which is updated more often, Reefer Assistant or 光证小黑板?

Reefer Assistant ships an update every 11 months, and 光证小黑板 monthly. Most recently, Reefer Assistant was updated on September 17, 2026 and 光证小黑板 on September 16, 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.*