# 我资道 vs Sonar

The clearest difference is iOS requirement: 我资道 at 12.0 against Sonar's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 我资道 sells 4 in-app purchases, starting at $0.99 per month and Sonar sells 2 in-app purchases, starting at $11.99 per year. Whichever you choose, the download price is not the number that matters.

我资道 ships an update every 2 weeks, Sonar weekly. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 我资道 | Sonar |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 81 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [楼上(深圳)科技有限公司](https://appshunter.io/developer/1836348115) | [Romisoft Ltd](https://appshunter.io/developer/6806039383) |

## What reviewers say

### 我资道

[App page](https://appshunter.io/ios/app/id6751706245)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | per month |
| 月度会员 | $0.99 | one-time |
| 早期支持者 | $14.99 | one-time |
| 终身会员 | $29.99 | one-time |


### Sonar

[App page](https://appshunter.io/ios/app/sonar-subscription-tracker/id6806039381)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sonar Pro | $11.99 | per year |
| Sonar Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is 我资道 free?

我资道 is free to download, with in-app purchases available.

### Is Sonar free?

Sonar is free to download, with in-app purchases available.

### Do 我资道 or Sonar have ads?

Neither 我资道 nor Sonar shows ads.

### Which is updated more often, 我资道 or Sonar?

我资道 ships an update every 2 weeks, and Sonar weekly. Most recently, 我资道 was updated on October 13, 2026 and Sonar on October 24, 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.*