# Molecules AR vs Double Displacement Reaction

The clearest difference is device support: Double Displacement Reaction at 3 against Molecules AR's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Molecules AR costs $1.99 and Double Displacement Reaction $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, Double Displacement Reaction every 33 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Molecules AR | Double Displacement Reaction |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 20 months** | Every 33 months |
| Size | 27 MB | 152 MB |
| Requires iOS | 12.0 | **11.0** |
| 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


### Double Displacement Reaction

[App page](https://appshunter.io/ios/app/double-displacement-reaction/id1545135470)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Molecules AR free?

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

### Is Double Displacement Reaction free?

Double Displacement Reaction costs $1.99, with no in-app purchases.

### Do Molecules AR or Double Displacement Reaction have ads?

Neither Molecules AR nor Double Displacement Reaction shows ads.

### Which is updated more often, Molecules AR or Double Displacement Reaction?

Molecules AR ships an update every 20 months, and Double Displacement Reaction every 33 months. Most recently, Molecules AR was updated on October 5, 2026 and Double Displacement Reaction on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*