# Echo vs Build it Up

The clearest difference is in-app purchases: Build it Up at none against Echo's 2. Echo's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Echo sells 2 one-off in-app purchases. Build it Up asks for nothing beyond the download.

## The numbers

| Metric | Echo | Build it Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (362 ratings)](https://appshunter.io/ios/app/build-it-uplit-skyscraper/id6767507281/reviews)** |
| Number of ratings | — | **362** |
| Positive reviews | — | 91.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Monetization | — | Ad-supported |
| Size | 19 MB | 218 MB |
| Requires iOS | 17.0 | **16.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [WEIYANG WANG](https://appshunter.io/developer/1713126855) | [满婷 聂](https://appshunter.io/developer/1885386428) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-a-signal-from-mars/id6762421185)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 24h Relay Boost | $1.99 | one-time |
| 7-Day Mission Pass | $6.99 | one-time |


### Build it Up

[App page](https://appshunter.io/ios/app/build-it-uplit-skyscraper/id6767507281)

Build impressive skyscrapers by tapping to drop floors into place. Enjoy a satisfying and stress-free construction experience as you stack them higher and higher. Crown your creation with a roof and move on to your next architectural project.

**Highlights:** Tap to drop floors, Stack floors for height, Add a roof to complete, Stress-free gameplay, Meditative building experience, Fast-paced tapping option

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

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

### Is Build it Up free?

Build it Up is free to download, with no in-app purchases.

### Do Echo or Build it Up have ads?

Build it Up shows ads; Echo does not.

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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.*