# SCIENCE & PLAY BUILD vs Fedegari Authenticator

The clearest difference is device support: SCIENCE & PLAY BUILD at 3 against Fedegari Authenticator's 1. SCIENCE & PLAY BUILD also leads on iOS requirement (13.0 vs 16.4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SCIENCE & PLAY BUILD ships an update every 4 months, Fedegari Authenticator every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SCIENCE & PLAY BUILD | Fedegari Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (9 ratings)](https://appshunter.io/ios/app/science-and-play-build/id1216590312/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 47.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 464 MB | 44 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Clementoni S.p.A.](https://appshunter.io/developer/575135209) | [TEQ SA](https://appshunter.io/developer/724354061) |

## What reviewers say

### SCIENCE & PLAY BUILD

[App page](https://appshunter.io/ios/app/science-and-play-build/id1216590312)

This app provides interactive 3D animations to guide users through assembling physical products. It offers features like step-by-step viewing, rotation, zooming, and automatic playback for a more engaging building experience.

**Highlights:** Interactive 3D animations, Step-by-step assembly guidance, Model rotation and zooming, Timeline for reviewing steps, Automatic playback of assembly

**In-app purchases:** none


### Fedegari Authenticator

[App page](https://appshunter.io/ios/app/fedegari-authenticator/id6742740600)

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

**In-app purchases:** none


## Frequently asked questions

### Is SCIENCE & PLAY BUILD free?

SCIENCE & PLAY BUILD is free to download, with no in-app purchases.

### Is Fedegari Authenticator free?

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

### Do SCIENCE & PLAY BUILD or Fedegari Authenticator have ads?

Neither SCIENCE & PLAY BUILD nor Fedegari Authenticator shows ads.

### Which is updated more often, SCIENCE & PLAY BUILD or Fedegari Authenticator?

SCIENCE & PLAY BUILD ships an update every 4 months, and Fedegari Authenticator every 2 months. Most recently, SCIENCE & PLAY BUILD was updated on November 2, 2026 and Fedegari Authenticator on October 30, 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.*