# Changing Platforms vs Spire Bastion

The clearest difference is update cadence: Spire Bastion at fortnightly against Changing Platforms's monthly. 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.

Changing Platforms ships an update monthly, Spire Bastion fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Changing Platforms | Spire Bastion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spire-bastion/id6751479227/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 58 MB | 359 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Atakan Cakir](https://appshunter.io/developer/1598734806) | [FutureBright Technology Company Limited](https://appshunter.io/developer/715337595) |

## What reviewers say

### Changing Platforms

[App page](https://appshunter.io/ios/app/changing-platforms/id1625915469)

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

**In-app purchases:** none


### Spire Bastion

[App page](https://appshunter.io/ios/app/spire-bastion/id6751479227)

Defend your Crystal Core from climbing enemies in this simple yet strategic tower defense game. Place heroes to auto-fight and utilize 3D terrain to your advantage. Enjoy a relaxing experience with light strategy and satisfying results.

**Highlights:** 3D terrain impacts gameplay, Light strategy with skill combos, Floor-by-floor progression, Hero placement and auto-fighting, Focus on calm decisions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Changing Platforms free?

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

### Is Spire Bastion free?

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

### Do Changing Platforms or Spire Bastion have ads?

Both Changing Platforms and Spire Bastion show ads.

### Which is updated more often, Changing Platforms or Spire Bastion?

Changing Platforms ships an update monthly, and Spire Bastion fortnightly. Most recently, Changing Platforms was updated on November 3, 2026 and Spire Bastion on October 30, 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.*