# ColurAI87 vs Gaussus

The clearest difference is price: ColurAI87 at Free against Gaussus's $29.99. Gaussus's advantage is in-app purchases (none vs 3) and update cadence (every 2 days vs every 8 days). On ads and device support there is nothing between them.

ColurAI87 is free to download; Gaussus costs $29.99 up front. ColurAI87 sells 3 in-app purchases, starting at $3.99 per month. Gaussus asks for nothing beyond the download.

ColurAI87 ships an update every 8 days, Gaussus every 2 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ColurAI87 | Gaussus |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/gaussus/id6762043918/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 2 days** |
| Monetization | — | Paid |
| Size | 73 MB | 50 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vincent Launay](https://appshunter.io/developer/1198218316) | [Omry Ishai](https://appshunter.io/developer/1892644695) |

## What reviewers say

### ColurAI87

[App page](https://appshunter.io/ios/app/colurai87/id6753147068)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xtremagic Pass – Monthly | $3.99 | per month |
| Xtremagic Pass – Yearly | $24.99 | per year |
| Full Access (One-Time Purchase) | $7.99 | one-time |


### Gaussus

[App page](https://appshunter.io/ios/app/gaussus/id6762043918)

This calculator app grants users a superpower to predict numbers thought of by spectators. It's designed for mentalists and magicians to perform astonishing feats, like revealing a spectator's chosen number or a significant date in advance.

**Highlights:** Predict spectator's thought-of number, Reveal pre-written numbers on calculator, Guess birth dates, Perform advanced mentalism effects, Calculator with superpower capabilities

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

**In-app purchases:** none


## Frequently asked questions

### Is ColurAI87 free?

ColurAI87 is free to download, with in-app purchases available.

### Is Gaussus free?

Gaussus costs $29.99, with no in-app purchases.

### Do ColurAI87 or Gaussus have ads?

Neither ColurAI87 nor Gaussus shows ads.

### Which is updated more often, ColurAI87 or Gaussus?

ColurAI87 ships an update every 8 days, and Gaussus every 2 days. Most recently, ColurAI87 was updated on October 13, 2026 and Gaussus on October 9, 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.*