# Controller vs SoloEcho

The clearest difference is in-app purchases: Controller at none against SoloEcho's 1. Controller also leads on iOS requirement (15.6 vs 18.6). SoloEcho's advantage is update cadence (every 5 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. SoloEcho sells 1 one-off in-app purchase. Controller asks for nothing beyond the download.

Controller ships an update every 4 months, SoloEcho every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Controller | SoloEcho |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 12 MB | 5 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [宝强 张](https://appshunter.io/developer/1680081398) | [恒俭 董](https://appshunter.io/developer/947356968) |

## What reviewers say

### Controller

[App page](https://appshunter.io/ios/app/controller-eh/id6447059991)

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

**In-app purchases:** none


### SoloEcho

[App page](https://appshunter.io/ios/app/soloecho/id6760158629)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Controller free?

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

### Is SoloEcho free?

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

### Do Controller or SoloEcho have ads?

Neither Controller nor SoloEcho shows ads.

### Which is updated more often, Controller or SoloEcho?

Controller ships an update every 4 months, and SoloEcho every 5 weeks. Most recently, Controller was updated on October 24, 2026 and SoloEcho on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*