# 环保小智 vs 国标通

The clearest difference is update cadence: 环保小智 at monthly against 国标通's every 9 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.

环保小智 ships an update monthly, 国标通 every 9 months. The most recent releases landed on October 10, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | 环保小智 | 国标通 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Size | 81 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hangzhou Qingshen Environmental Protection Technology Co., Ltd.](https://appshunter.io/developer/1508942974) | [National Center of Standards Evaluation, SAMR](https://appshunter.io/developer/1688507912) |

## What reviewers say

### 环保小智

[App page](https://appshunter.io/ios/app/id1508942975)

**Features:** macOS Compatibility

**In-app purchases:** none


### 国标通

[App page](https://appshunter.io/ios/app/id6449272441)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 环保小智 free?

环保小智 is free to download, with no in-app purchases.

### Is 国标通 free?

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

### Do 环保小智 or 国标通 have ads?

Neither 环保小智 nor 国标通 shows ads.

### Which is updated more often, 环保小智 or 国标通?

环保小智 ships an update monthly, and 国标通 every 9 months. Most recently, 环保小智 was updated on October 10, 2026 and 国标通 on September 27, 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.*