# Periodic Table vs StudyGuides.com

The clearest difference is in-app purchases: Periodic Table at none against StudyGuides.com's 1. Periodic Table also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StudyGuides.com sells 1 in-app purchase, starting at $12.99 per month. Periodic Table asks for nothing beyond the download.

Periodic Table ships an update every 3 days, StudyGuides.com fortnightly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Periodic Table | StudyGuides.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/studyguidescom/id6774319391/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Freemium |
| Size | 23 MB | 6 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [HAYDEN D'ERRICO](https://appshunter.io/developer/1812333086) | [Advancement Solutions, LLC](https://appshunter.io/developer/1519273710) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-periodica/id6745459785)

**In-app purchases:** none


### StudyGuides.com

[App page](https://appshunter.io/ios/app/studyguidescom/id6774319391)

Master any subject with personalized study tools. Prepare for academic exams and professional certifications with in-depth guides, flashcards, practice questions, and simulated exams. Adapt your learning style to study smarter and pass with confidence.

**Highlights:** Detailed study guides, Interactive flashcards, Practice questions, Survival mode challenges, Simulated exams, Personalized study tools

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $12.99 | per month |


## Frequently asked questions

### Is Periodic Table free?

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

### Is StudyGuides.com free?

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

### Do Periodic Table or StudyGuides.com have ads?

Neither Periodic Table nor StudyGuides.com shows ads.

### Which is updated more often, Periodic Table or StudyGuides.com?

Periodic Table ships an update every 3 days, and StudyGuides.com fortnightly. Most recently, Periodic Table was updated on November 8, 2026 and StudyGuides.com on October 31, 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.*