# CIMOS城市大脑 vs 犬令同练

The clearest difference is in-app purchases: CIMOS城市大脑 at none against 犬令同练's 1. 犬令同练's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 犬令同练 sells 1 one-off in-app purchase. CIMOS城市大脑 asks for nothing beyond the download.

CIMOS城市大脑 ships an update every 2 months, 犬令同练 every 2 weeks. The most recent releases landed on October 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | CIMOS城市大脑 | 犬令同练 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 89 MB | 32 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Qingdao City Brain Investment Development Co., Ltd](https://appshunter.io/developer/1531980409) | [颖玲 杨](https://appshunter.io/developer/1876476461) |

## What reviewers say

### CIMOS城市大脑

[App page](https://appshunter.io/ios/app/cimos/id1544591615)

**Features:** macOS Compatibility

**In-app purchases:** none


### 犬令同练

[App page](https://appshunter.io/ios/app/id6785179843)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版 | $0.99 | one-time |


## Frequently asked questions

### Is CIMOS城市大脑 free?

CIMOS城市大脑 is free to download, with no in-app purchases.

### Is 犬令同练 free?

犬令同练 is free to download, with in-app purchases available.

### Do CIMOS城市大脑 or 犬令同练 have ads?

Neither CIMOS城市大脑 nor 犬令同练 shows ads.

### Which is updated more often, CIMOS城市大脑 or 犬令同练?

CIMOS城市大脑 ships an update every 2 months, and 犬令同练 every 2 weeks. Most recently, CIMOS城市大脑 was updated on October 27, 2026 and 犬令同练 on September 19, 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.*