ColurAI87 vs Gaussus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColurAI87
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Modern mentalism for the whole room Experience modern mentalism like never before. Six spectators. Six random cards. One photo. Every card flawlessly revealed — even when you're turned away, or miles apart. A New Kind of Mentalism Modern mentalism, instant and impossible. Unlike the many one-on-one magic apps on the store, ColurIA87 is crafted for the whole room. In one seamless routine, you can involve up to six spectators at once and reveal each of their cards with stunning accuracy. Built for Real Performance - Friendly — easy to use for any performer - Practical — no complex setup, no reset - Versatile — from casual gatherings to full party settings One routine. Six revelations. Zero explanations. Terms of Use: https://xtremagic.com/terms
Gaussus
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.
- Predict spectator's thought-of number
- Reveal pre-written numbers on calculator
- Guess birth dates
- Perform advanced mentalism effects
- Calculator with superpower capabilities
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Predict any number a spectator is thinking of - and much more. GAUSSUS is a calculator that gives you a superpower. A new tool built especially for mentalists, magicians, and anyone who wants to leave people absolutely amazed. Here are just some of the effects you can perform with GAUSSUS: 1. A spectator thinks of a random number - any number - and you reveal that you had already written it in advance on the calculator on your iPhone. 2. Two spectators (or more) think of different random numbers, and you reveal that you had already written the final total in advance on the calculator. 3. A spectator thinks of the birth date of someone close to them, and you reveal that you knew the date in advance. The possibilities are endless.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ColurAI87 | Gaussus |
|---|---|---|
| Price | Free — better | $29.99 |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 8 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 73 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Vincent Launay | Omry Ishai |
In-app purchases
ColurAI87
- Xtremagic Pass – Monthly$3.991 Month
- Xtremagic Pass – Yearly$24.991 Year
- Full Access (One-Time Purchase)$7.99
Gaussus
No in-app purchases









