# 知协 vs Garbage classification guide

The clearest difference is in-app purchases: 知协 at none against Garbage classification guide's 1. 知协 also leads on update cadence (monthly vs every 35 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Garbage classification guide sells 1 one-off in-app purchase. 知协 asks for nothing beyond the download.

知协 ships an update monthly, Garbage classification guide every 35 months. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 知协 | Garbage classification guide |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 35 months |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 4 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Zhixie Network Technology Co., Ltd.](https://appshunter.io/developer/1465570003) | [昆 李](https://appshunter.io/developer/1480980920) |

## What reviewers say

### 知协

[App page](https://appshunter.io/ios/app/id1465570004)

**Features:** macOS Compatibility

**In-app purchases:** none


### Garbage classification guide

[App page](https://appshunter.io/ios/app/garbage-classification-guide/id1471588754)

Learn to sort waste with this app. It helps you quickly identify how to classify different types of garbage, supporting urban waste separation programs. Practice daily to protect your environment.

**Highlights:** Quick garbage classification query, Text input with fuzzy matching, Learn waste sorting categories, Daily practice exercises, Supports urban waste management

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |


## Frequently asked questions

### Is 知协 free?

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

### Is Garbage classification guide free?

Garbage classification guide is free to download, with in-app purchases available.

### Do 知协 or Garbage classification guide have ads?

Neither 知协 nor Garbage classification guide shows ads.

### Which is updated more often, 知协 or Garbage classification guide?

知协 ships an update monthly, and Garbage classification guide every 35 months. Most recently, 知协 was updated on October 3, 2026 and Garbage classification guide on October 4, 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.*