# ReactionTest vs Shadow Architect

The clearest difference is in-app purchases: ReactionTest at none against Shadow Architect's 1. ReactionTest also leads on update cadence (weekly vs every 2 months). Shadow Architect's advantage is ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Shadow Architect sells 1 in-app purchase, starting at $0.99 per year. ReactionTest asks for nothing beyond the download.

ReactionTest ships an update weekly, Shadow Architect every 2 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | ReactionTest | Shadow Architect |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 months |
| Size | 11 MB | 5 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BYNET](https://appshunter.io/developer/1811735131) | [火光 温](https://appshunter.io/developer/1701355360) |

## What reviewers say

### ReactionTest

[App page](https://appshunter.io/ios/app/reactiontest-speed-test/id6760424379)

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

**In-app purchases:** none


### Shadow Architect

[App page](https://appshunter.io/ios/app/shadow-architect/id6787419126)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP subscription for 1 year | $0.99 | per year |


## Frequently asked questions

### Is ReactionTest free?

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

### Is Shadow Architect free?

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

### Do ReactionTest or Shadow Architect have ads?

ReactionTest shows ads; Shadow Architect does not.

### Which is updated more often, ReactionTest or Shadow Architect?

ReactionTest ships an update weekly, and Shadow Architect every 2 months. Most recently, ReactionTest was updated on September 21, 2026 and Shadow Architect on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*