# SouSou vs Echo IM

The clearest difference is price: Echo IM at Free against SouSou's $0.99. Echo IM also leads on update cadence (weekly vs fortnightly). SouSou's advantage is iOS requirement (16.0 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

Echo IM is free to download; SouSou costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SouSou ships an update fortnightly, Echo IM weekly. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SouSou | Echo IM |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Paid | — |
| Size | 15 MB | 95 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [娇 李](https://appshunter.io/developer/1700298679) | [Tadwill & Co., Limited](https://appshunter.io/developer/351931205) |

## What reviewers say

### SouSou

[App page](https://appshunter.io/ios/app/sousou-quick-search/id6747947379)

This tool bypasses app homepages and recommended content to take you directly to search results. Focus on your search queries without distractions, quickly accessing the information you need. It also offers history tracking and desktop widgets for faster access.

**Highlights:** Direct search result access, Skip homepage feeds, Record search history, App shortcut commands, Desktop widget support

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

**In-app purchases:** none


### Echo IM

[App page](https://appshunter.io/ios/app/echo-im/id6757745646)

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

**In-app purchases:** none


## Frequently asked questions

### Is SouSou free?

SouSou costs $0.99, with no in-app purchases.

### Is Echo IM free?

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

### Do SouSou or Echo IM have ads?

Neither SouSou nor Echo IM shows ads.

### Which is updated more often, SouSou or Echo IM?

SouSou ships an update fortnightly, and Echo IM weekly. Most recently, SouSou was updated on October 8, 2026 and Echo IM 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.*