# Periodacity vs Periodic

The clearest difference is ads: Periodacity at none against Periodic's shown. Periodacity also leads on update cadence (every 3 weeks vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Periodacity ships an update every 3 weeks, Periodic every 5 weeks. The most recent releases landed on June 5, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Periodacity | Periodic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/periodacity/id612368742/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 5 MB | 35 MB |
| Requires iOS | 16.1 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jesse Spencer](https://appshunter.io/developer/612368745) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### Periodacity

[App page](https://appshunter.io/ios/app/periodacity/id612368742)

This app provides comprehensive reference information for all known elements on the periodic table. It's designed for chemists and chemistry students seeking quick access to element data.

**Highlights:** Complete periodic table data, Information on all known elements, Designed for chemists, Aimed at chemistry students, Reference tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Periodic

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Periodacity free?

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

### Is Periodic free?

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

### Do Periodacity or Periodic have ads?

Periodic shows ads; Periodacity does not.

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

Periodacity ships an update every 3 weeks, and Periodic every 5 weeks. Most recently, Periodacity was updated on June 5, 2026 and Periodic on May 16, 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.*