# Periodic vs EleMend

The clearest difference is update cadence: EleMend at every 5 days against Periodic's every 5 weeks. EleMend also leads on iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Periodic ships an update every 5 weeks, EleMend every 5 days. The most recent releases landed on May 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Periodic | EleMend |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (59 ratings)](https://appshunter.io/ios/app/elemend-3d-periodic-table/id6448836992/reviews)** |
| Number of ratings | — | **59** |
| Positive reviews | — | 87.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | — | Ad-supported |
| Size | 35 MB | 153 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [ZipoApps](https://appshunter.io/developer/1671444635) |

## What reviewers say

### Periodic

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

**Features:** macOS Compatibility

**In-app purchases:** none


### EleMend

[App page](https://appshunter.io/ios/app/elemend-3d-periodic-table/id6448836992)

Explore the periodic table with interactive 3D models of elements and their atomic structures. Visualize electron orbitals and observe emission spectra for a deeper understanding of chemical properties and applications.

**Highlights:** 3D element models, Interactive atomic structures, 3D orbital visualizations, Emission spectrum feature, Comprehensive element data, Targeted element search

**In-app purchases:** none


## Frequently asked questions

### Is Periodic free?

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

### Is EleMend free?

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

### Do Periodic or EleMend have ads?

Both Periodic and EleMend show ads.

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

Periodic ships an update every 5 weeks, and EleMend every 5 days. Most recently, Periodic was updated on May 16, 2026 and EleMend on September 18, 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.*