# Four Seconds vs Echo Chain

The clearest difference is price: Four Seconds at Free against Echo Chain's $3.99. Four Seconds also leads on in-app purchases (none vs 7) and ratings volume (6 vs 2). Echo Chain's advantage is update cadence (every 3 weeks vs every 22 months). On rating, review sentiment, ads and device support there is nothing between them.

Four Seconds is free to download; Echo Chain costs $3.99 up front. Echo Chain sells 7 one-off in-app purchases. Four Seconds asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Four Seconds against 5.0 for Echo Chain. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Four Seconds ships an update every 22 months, Echo Chain every 3 weeks. The most recent releases landed on September 14, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Four Seconds | Echo Chain |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/four-seconds/id1280965840/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/echo-chain-multiplayer/id6751758104/reviews) |
| Number of ratings | **6** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 24 MB | 196 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Andrei Antonescu](https://appshunter.io/developer/1126352058) | [Unmbox Studios](https://appshunter.io/developer/1836642090) |

## What reviewers say

### Four Seconds

[App page](https://appshunter.io/ios/app/four-seconds/id1280965840)

Test your timing by stopping a timer at precisely four seconds. Compete with others on the leaderboard to see who has the best precision. It's a simple yet challenging game of skill.

**Highlights:** Precise timer stopping, Four-second challenge, Global leaderboard, Simple gameplay

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

**In-app purchases:** none


### Echo Chain

[App page](https://appshunter.io/ios/app/echo-chain-multiplayer/id6751758104)

This is an accessible audio game that challenges your memory by having you listen to and repeat sequences. It offers multiple game modes, including multiplayer and single-player challenges, and allows for custom sound packs. The experience is premium, ad-free, and designed for both visually impaired and sighted players.

**Highlights:** Listen and repeat audio sequences, Multiplayer and single-player modes, Custom sound pack creation, Global leaderboards, Fully accessible for visually impaired players, Ad-free premium experience

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pixel Beats | $0.99 | one-time |
| Sonic Pulse | $0.99 | one-time |
| Cosmic Burst | $0.99 | one-time |
| Cyber Flow | $0.99 | one-time |
| Power Strike | $0.99 | one-time |
| Photon Slash | $1.99 | one-time |
| Tranquil Wave | $1.99 | one-time |


## Frequently asked questions

### Is Four Seconds free?

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

### Is Echo Chain free?

Echo Chain costs $3.99, and also offers in-app purchases.

### Which has better reviews, Four Seconds or Echo Chain?

Four Seconds and Echo Chain are both rated 5.0 out of 5 on the App Store, from 6 and 2 ratings respectively.

### Do Four Seconds or Echo Chain have ads?

Neither Four Seconds nor Echo Chain shows ads.

### Which is updated more often, Four Seconds or Echo Chain?

Four Seconds ships an update every 22 months, and Echo Chain every 3 weeks. Most recently, Four Seconds was updated on September 14, 2026 and Echo Chain on September 27, 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.*