# EncephalApp vs Spectrum

The clearest difference is ads: EncephalApp at none against Spectrum's shown. Spectrum's advantage is update cadence (every 2 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

EncephalApp ships an update every 5 months, Spectrum every 2 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | EncephalApp | Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/encephalapp-stroop-test/id589478721/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 31 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jasmohan Bajaj](https://appshunter.io/developer/589478724) | [Dieu Doan](https://appshunter.io/developer/6809473186) |

## What reviewers say

### EncephalApp

[App page](https://appshunter.io/ios/app/encephalapp-stroop-test/id589478721)

This app presents a series of color-word association tests to measure your mental processing speed and response rate. It tracks your progress through multiple rounds, providing detailed results and allowing score comparison or sharing for review.

**Highlights:** Mental speed testing, Response rate identification, Color-word association, Score tracking and progression, Result presentation, Score comparison and sharing

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

**In-app purchases:** none


### Spectrum

[App page](https://appshunter.io/ios/app/spectrum-color-gradient-logic/id6810940089)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EncephalApp free?

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

### Is Spectrum free?

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

### Do EncephalApp or Spectrum have ads?

Spectrum shows ads; EncephalApp does not.

### Which is updated more often, EncephalApp or Spectrum?

EncephalApp ships an update every 5 months, and Spectrum every 2 days. Most recently, EncephalApp was updated on October 24, 2026 and Spectrum on October 14, 2026.

---

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