# 比咚 vs No Trace

比咚 and No Trace are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 比咚 sells 10 one-off in-app purchases and No Trace sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

比咚 ships an update every 2 weeks, No Trace every 11 days. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 比咚 | No Trace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Size | 143 MB | 100 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [智学引擎(烟台)](https://appshunter.io/developer/1712793987) | [Teamz Lab Ltd](https://appshunter.io/developer/1785282466) |

## What reviewers say

### 比咚

[App page](https://appshunter.io/ios/app/id6755593579)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100金币礼包 | $1.99 | one-time |
| 查看谁喜欢我特权周度解锁 | $3.99 | one-time |
| 查看谁喜欢我特权月度解锁 | $5.99 | one-time |
| 查看谁喜欢我特权季度解锁 | $17.99 | one-time |
| 1050进阶金币礼包 | $17.99 | one-time |
| 2050豪华金币礼包 | $29.99 | one-time |
| 查看谁喜欢我特权年度解锁 | $39.99 | one-time |
| 520超值金币礼包 | $69.99 | one-time |
| 5000尊享金币礼包 | $69.99 | one-time |
| 11500至尊金币礼包 | $149.99 | one-time |


### No Trace

[App page](https://appshunter.io/ios/app/no-trace-private-code-chat/id6758867181)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is 比咚 free?

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

### Is No Trace free?

No Trace is free to download, with in-app purchases available.

### Do 比咚 or No Trace have ads?

Neither 比咚 nor No Trace shows ads.

### Which is updated more often, 比咚 or No Trace?

比咚 ships an update every 2 weeks, and No Trace every 11 days. Most recently, 比咚 was updated on October 16, 2026 and No Trace on October 31, 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.*