# Perception! vs Tower Builder

The clearest difference is in-app purchases: Perception! at none against Tower Builder's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tower Builder sells 1 one-off in-app purchase. Perception! asks for nothing beyond the download.

Perception! ships an update every 6 days, Tower Builder every 4 days. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Perception! | Tower Builder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 days | **Every 4 days** |
| Size | 53 MB | 74 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timothee de Raucourt](https://appshunter.io/developer/1818655956) | [AXIAL MUHENDISLIK VE YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/6799890839) |

## What reviewers say

### Perception!

[App page](https://appshunter.io/ios/app/perception-spot-the-tile/id6757512290)

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

**In-app purchases:** none


### Tower Builder

[App page](https://appshunter.io/ios/app/tower-builder-earthquake-sim/id6799890597)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Perception! free?

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

### Is Tower Builder free?

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

### Do Perception! or Tower Builder have ads?

Both Perception! and Tower Builder show ads.

### Which is updated more often, Perception! or Tower Builder?

Perception! ships an update every 6 days, and Tower Builder every 4 days. Most recently, Perception! was updated on October 11, 2026 and Tower Builder on October 5, 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.*