# Molecules AR vs Float or Sink by EduTech Era

The clearest difference is update cadence: Molecules AR at every 20 months against Float or Sink by EduTech Era's every 44 months. Float or Sink by EduTech Era's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Molecules AR costs $1.99 and Float or Sink by EduTech Era $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Molecules AR ships an update every 20 months, Float or Sink by EduTech Era every 44 months. The most recent releases landed on September 18, 2026 and August 28, 2026 respectively.

## The numbers

| Metric | Molecules AR | Float or Sink by EduTech Era |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/float-or-sink-by-edutech-era/id1621278768/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 20 months** | Every 44 months |
| Monetization | — | Paid |
| Size | 27 MB | 259 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) |

## What reviewers say

### Molecules AR

[App page](https://appshunter.io/ios/app/molecules-ar/id1334256889)

**Features:** macOS Compatibility

**In-app purchases:** none


### Float or Sink by EduTech Era

[App page](https://appshunter.io/ios/app/float-or-sink-by-edutech-era/id1621278768)

Explore the science behind why objects float or sink with interactive diagrams and animations. This app explains key concepts like buoyancy and density through hands-on activities and real-life examples, making learning accessible offline.

**Highlights:** Interactive learning, Explains buoyancy and density, Clear diagrams and animations, Hands-on activities, Offline functionality, 3D object examination

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

**In-app purchases:** none


## Frequently asked questions

### Is Molecules AR free?

Molecules AR costs $1.99, with no in-app purchases.

### Is Float or Sink by EduTech Era free?

Float or Sink by EduTech Era costs $1.99, with no in-app purchases.

### Do Molecules AR or Float or Sink by EduTech Era have ads?

Neither Molecules AR nor Float or Sink by EduTech Era shows ads.

### Which is updated more often, Molecules AR or Float or Sink by EduTech Era?

Molecules AR ships an update every 20 months, and Float or Sink by EduTech Era every 44 months. Most recently, Molecules AR was updated on September 18, 2026 and Float or Sink by EduTech Era on August 28, 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.*