# LetEL vs SoundSim360

The clearest difference is in-app purchases: LetEL at none against SoundSim360's 1. SoundSim360's advantage is update cadence (every 3 weeks vs every 25 months) and device support. On price and iOS requirement there is nothing between them.

Both are free to download. SoundSim360 sells 1 in-app purchase, starting at $34.99 per month. LetEL asks for nothing beyond the download.

LetEL ships an update every 25 months, SoundSim360 every 3 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | LetEL | SoundSim360 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Size | 22 MB | 66 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [SoftControl AS](https://appshunter.io/developer/1779668182) | [Pronumerix AB](https://appshunter.io/developer/1882994835) |

## What reviewers say

### LetEL

[App page](https://appshunter.io/ios/app/letel/id1608168777)

**In-app purchases:** none


### SoundSim360

[App page](https://appshunter.io/ios/app/soundsim360/id6760180092)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundSim360 Subscription | $34.99 | per month |


## Frequently asked questions

### Is LetEL free?

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

### Is SoundSim360 free?

SoundSim360 is free to download, with in-app purchases available.

### Which is updated more often, LetEL or SoundSim360?

LetEL ships an update every 25 months, and SoundSim360 every 3 weeks. Most recently, LetEL was updated on October 14, 2026 and SoundSim360 on October 6, 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.*