# Periodic vs Expedition Church

The clearest difference is ads: Expedition Church at none against Periodic's shown. Expedition Church also leads on iOS requirement (13.4 vs 15.1). Periodic's advantage is update cadence (every 5 weeks vs every 3 months). On price, 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, Expedition Church every 3 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Periodic | Expedition Church |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 35 MB | 46 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Expedition Church (Payson)](https://appshunter.io/developer/1667686396) |

## What reviewers say

### Periodic

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

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

**In-app purchases:** none


### Expedition Church

[App page](https://appshunter.io/ios/app/expedition-church/id1667686064)

**In-app purchases:** none


## Frequently asked questions

### Is Periodic free?

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

### Is Expedition Church free?

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

### Do Periodic or Expedition Church have ads?

Periodic shows ads; Expedition Church does not.

### Which is updated more often, Periodic or Expedition Church?

Periodic ships an update every 5 weeks, and Expedition Church every 3 months. Most recently, Periodic was updated on October 25, 2026 and Expedition Church on October 27, 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.*