# Parallel Earth vs ThunderForce

The clearest difference is in-app purchases: Parallel Earth at none against ThunderForce's 1. ThunderForce's advantage is ads (none vs shown) and update cadence (every 5 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. ThunderForce sells 1 in-app purchase, starting at $0.99 per month. Parallel Earth asks for nothing beyond the download.

Parallel Earth ships an update every 4 months, ThunderForce every 5 days. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Parallel Earth | ThunderForce |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 149 MB | 74 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Sui Fai Law](https://appshunter.io/developer/1889201616) | [Sun Huang](https://appshunter.io/developer/1819398501) |

## What reviewers say

### Parallel Earth

[App page](https://appshunter.io/ios/app/parallel-earth/id6763534884)

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

**In-app purchases:** none


### ThunderForce

[App page](https://appshunter.io/ios/app/thunderforce/id6802530155)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThunderForce Subscription | $0.99 | per month |


## Frequently asked questions

### Is Parallel Earth free?

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

### Is ThunderForce free?

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

### Do Parallel Earth or ThunderForce have ads?

Parallel Earth shows ads; ThunderForce does not.

### Which is updated more often, Parallel Earth or ThunderForce?

Parallel Earth ships an update every 4 months, and ThunderForce every 5 days. Most recently, Parallel Earth was updated on September 30, 2026 and ThunderForce on October 5, 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.*