# Chemistry Master Periodic vs Simposeum

The clearest difference is in-app purchases: Simposeum at none against Chemistry Master Periodic's 8. Simposeum also leads on ads (none vs shown) and update cadence (daily vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Chemistry Master Periodic sells 7 in-app purchases, starting at $3.99 per month. Simposeum asks for nothing beyond the download.

Chemistry Master Periodic ships an update every 2 months, Simposeum daily. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Chemistry Master Periodic | Simposeum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (51 ratings)](https://appshunter.io/ios/app/chemistry-master-periodic/id1496664834/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 90.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 119 MB | 10 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Carlo Terracciano](https://appshunter.io/developer/1159639539) | [Simposeum](https://appshunter.io/developer/6819830357) |

## What reviewers say

### Chemistry Master Periodic

[App page](https://appshunter.io/ios/app/chemistry-master-periodic/id1496664834)

This app uses AI to help you master chemistry. It can solve exercises by taking a photo, balance reactions, and create study tools like flashcards and mind maps from your notes. Access interactive periodic and solubility tables, plus unlimited quizzes.

**Highlights:** AI-powered exercise resolution, Automatic chemical reaction balancing, Flashcard and mind map creation, Interactive periodic table, Unlimited quizzes, Detailed step-by-step explanations

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry · Monthly | $3.99 | per month |
| Chemistry · Monthly | $5.99 | per month |
| Chemistry · Annual | $8.99 | per year |
| Chemistry · Annual | $24.99 | per year |
| Chemistry · Annual | $24.99 | per year |
| Lifetime Subscription Chem | $29.99 | one-time |
| Periodic Table & Reactions | $99.99 | one-time |


### Simposeum

[App page](https://appshunter.io/ios/app/simposeum/id6819830355)

**In-app purchases:** none


## Frequently asked questions

### Is Chemistry Master Periodic free?

Chemistry Master Periodic is free to download, with in-app purchases available.

### Is Simposeum free?

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

### Do Chemistry Master Periodic or Simposeum have ads?

Chemistry Master Periodic shows ads; Simposeum does not.

### Which is updated more often, Chemistry Master Periodic or Simposeum?

Chemistry Master Periodic ships an update every 2 months, and Simposeum daily. Most recently, Chemistry Master Periodic was updated on November 7, 2026 and Simposeum on November 6, 2026.

---

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