# E采隆平版 vs SoundLog

The clearest difference is in-app purchases: E采隆平版 at none against SoundLog's 3. E采隆平版 also leads on iOS requirement (11.0 vs 13.0). SoundLog's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. SoundLog sells 3 in-app purchases, starting at $2.99 per month. E采隆平版 asks for nothing beyond the download.

E采隆平版 ships an update every 2 months, SoundLog weekly. The most recent releases landed on September 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | E采隆平版 | SoundLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 84 MB | 72 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长沙百奥云数据科技有限公司](https://appshunter.io/developer/1554960961) | [Kenichi Tabata](https://appshunter.io/developer/1896292479) |

## What reviewers say

### E采隆平版

[App page](https://appshunter.io/ios/app/e/id1554960959)

**Features:** macOS Compatibility

**In-app purchases:** none


### SoundLog

[App page](https://appshunter.io/ios/app/soundlog-noise-tracker/id6766467501)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundLog Pro (Monthly) | $2.99 | per month |
| Single Report | $1.99 | one-time |
| 3-Report Pack | $2.99 | one-time |


## Frequently asked questions

### Is E采隆平版 free?

E采隆平版 is free to download, with no in-app purchases.

### Is SoundLog free?

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

### Do E采隆平版 or SoundLog have ads?

Neither E采隆平版 nor SoundLog shows ads.

### Which is updated more often, E采隆平版 or SoundLog?

E采隆平版 ships an update every 2 months, and SoundLog weekly. Most recently, E采隆平版 was updated on September 16, 2026 and SoundLog on September 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.*