# Chemistry. Periodic table. AI vs STEMReader

The clearest difference is ads: STEMReader at none against Chemistry. Periodic table. AI's shown. Chemistry. Periodic table. AI's advantage is device support (6 vs 3) and iOS requirement (13.0 vs 26.4). On price and in-app purchases there is nothing between them.

Both are free to download. Chemistry. Periodic table. AI sells 9 in-app purchases, starting at $1.99 per 7 days and STEMReader sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Chemistry. Periodic table. AI | STEMReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (2.7K ratings)](https://appshunter.io/ios/app/chemistry-periodic-table-ai/id493558583/reviews)** | — |
| Number of ratings | **2.7K** | — |
| Positive reviews | 84.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 12 MB |
| Requires iOS | **13.0** | 26.4 |
| Devices | **iPhone, iPad, iPod, Apple TV, Apple Watch, Vision Pro** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Denis Chashchin](https://appshunter.io/developer/493558586) | [SAMUEL QUINTEIRO PEREZ](https://appshunter.io/developer/1793573517) |

## What reviewers say

### Chemistry. Periodic table. AI

[App page](https://appshunter.io/ios/app/chemistry-periodic-table-ai/id493558583)

Explore an interactive periodic table with 3D models and AR features. This app offers an AI-powered tutor for simplified explanations, a reaction solver, and a molar mass calculator. It's a comprehensive reference for students and professionals to learn chemistry effectively.

**Highlights:** Interactive Periodic Table with 3D models, AI-powered chemistry tutor (ChemAI), Chemical reaction solver, Molar mass calculator, Augmented Reality (AR) elements, Home screen widgets for elements

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Pro | $1.99 | per 7 days |
| Chemistry Pro | $2.99 | per year |
| Chemistry Pro | $2.99 | per 3 months |
| ChemAI Tutor | $2.99 | per month |
| Chemistry Pro | $3.99 | per 3 months |
| Chemical Elements Info | $7.99 | one-time |
| Chemistry Pro | $12.99 | one-time |
| Chemistry Pro | $17.49 | one-time |
| Chemistry Pro | $34.99 | one-time |

**What reviewers like**

- 👍 Convenient and easy to use
- 🚀 Helpful for chemistry studies
- 💡 Detailed periodic table and element information
- 🔍 Useful features like molar mass calculator and reaction balancer

**What reviewers complain about**

- 🐛 Some data inaccuracies or errors
- 💰 Subscription model for premium features
- 🔋 Potential battery drain issues

**Reported bugs**

- Crashes or freezes when opening certain sections
- Search function not working as expected for some elements

**Requested features**

- Add electronegativity values to periodic table
- Improve chemical equation balancing functionality
- Implement a dark mode option
- Highlight/compare elements on periodic table


### STEMReader

[App page](https://appshunter.io/ios/app/stemreader/id6778995923)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $1.99 | per month |
| Plus Annual | $7.99 | per year |
| This Document | $0.99 | one-time |
| Three Documents | $1.99 | one-time |


## Frequently asked questions

### Is Chemistry. Periodic table. AI free?

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

### Is STEMReader free?

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

### Do Chemistry. Periodic table. AI or STEMReader have ads?

Chemistry. Periodic table. AI shows ads; STEMReader does not.

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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.*