# Periodic vs Elements

The clearest difference is in-app purchases: Periodic at none against Elements's 1. Periodic also leads on update cadence (every 5 weeks vs every 14 months). Elements's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Elements sells 1 one-off in-app purchase. Periodic asks for nothing beyond the download.

Periodic ships an update every 5 weeks, Elements every 14 months. The most recent releases landed on May 16, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Periodic | Elements |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/elements-flashcards-and-quiz/id6452471262/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 14 months |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 15 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Brainoodle LLC](https://appshunter.io/developer/1694455083) |

## What reviewers say

### Periodic

[App page](https://appshunter.io/ios/app/periodic-table-elements/id1628647298)

**Features:** macOS Compatibility

**In-app purchases:** none


### Elements

[App page](https://appshunter.io/ios/app/elements-flashcards-and-quiz/id6452471262)

Master the Periodic Table with interactive study guides, customizable flashcards, and comprehensive quizzes. Track your daily progress and explore in-depth element data. Designed for students in grades 5-12, it adapts to individual learning styles for effective exam preparation.

**Highlights:** Interactive study guides, Customizable flashcards, Comprehensive quizzes, Daily progress tracking, In-depth element data, Tailored learning experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Content | $1.99 | one-time |


## Frequently asked questions

### Is Periodic free?

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

### Is Elements free?

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

### Do Periodic or Elements have ads?

Periodic shows ads; Elements does not.

### Which is updated more often, Periodic or Elements?

Periodic ships an update every 5 weeks, and Elements every 14 months. Most recently, Periodic was updated on May 16, 2026 and Elements on September 19, 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.*