# Useful Periodic Table Lite vs Periodacity

The clearest difference is rating: Useful Periodic Table Lite at 5.0 against Periodacity's 3.7. Periodacity's advantage is update cadence (every 3 weeks vs every 25 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Useful Periodic Table Lite holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Useful Periodic Table Lite ships an update every 25 months, Periodacity every 3 weeks. The most recent releases landed on October 2, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Useful Periodic Table Lite | Periodacity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/useful-periodic-table-lite/id584638498/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/periodacity/id612368742/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 25 MB | 5 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mind Trends LLC](https://appshunter.io/developer/582509215) | [Jesse Spencer](https://appshunter.io/developer/612368745) |

## What reviewers say

### Useful Periodic Table Lite

[App page](https://appshunter.io/ios/app/useful-periodic-table-lite/id584638498)

Access a comprehensive periodic table with all elements and their properties. Includes a unit converter, Wikipedia links for detailed information, and a quiz to test your knowledge. Ideal for students and professionals in science and engineering.

**Highlights:** Complete periodic table of elements, Detailed element properties, Integrated unit converter, Links to Wikipedia for further research, Elements quiz for students

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Useful Periodic Table Lite free?

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

### Is Periodacity free?

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

### Which has better reviews, Useful Periodic Table Lite or Periodacity?

Useful Periodic Table Lite is rated higher. Useful Periodic Table Lite averages 5.0 out of 5 from 1 ratings, while Periodacity averages 3.7 from 3 ratings.

### Do Useful Periodic Table Lite or Periodacity have ads?

Neither Useful Periodic Table Lite nor Periodacity shows ads.

### Which is updated more often, Useful Periodic Table Lite or Periodacity?

Useful Periodic Table Lite ships an update every 25 months, and Periodacity every 3 weeks. Most recently, Useful Periodic Table Lite was updated on October 2, 2026 and Periodacity on October 23, 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.*