# The Jerx vs DV Numerus

The clearest difference is price: DV Numerus at $79.99 against The Jerx's $89.99. DV Numerus also leads on update cadence (every 5 weeks vs every 4 months). The Jerx's advantage is in-app purchases (none vs 2) and chart position (#191 vs unranked). On ads and device support there is nothing between them.

The Jerx costs $89.99 and DV Numerus $79.99 up front. DV Numerus sells 2 one-off in-app purchases. The Jerx asks for nothing beyond the download.

The Jerx ships an update every 4 months, DV Numerus every 5 weeks. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | The Jerx | DV Numerus |
| --- | --- | --- |
| Price | $89.99 | **$79.99** |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/the-jerx/id1082369141/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#191** | — |
| Size | 4 MB | 7 MB |
| Requires iOS | **16.6** | 18.2 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Marc Kerstein](https://appshunter.io/developer/821255617) | [Marc Super](https://appshunter.io/developer/1792449328) |

## What reviewers say

### The Jerx

[App page](https://appshunter.io/ios/app/the-jerx/id1082369141)

**Currently charting:** #191 Top Paid · Entertainment (US App Store)

This utility app enables users to perform various mentalism and magic effects. It allows for creating illusions of memory loss, cognitive impairment, mind-reading, and predictions. Some effects may require additional physical materials.

**Highlights:** Memory loss illusions, Cognitive impairment effects, Mind reading capabilities, Prediction effects, Dual-reality illusions, Thought implantation

**In-app purchases:** none


### DV Numerus

[App page](https://appshunter.io/ios/app/dv-numerus/id6743944866)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Apple Watch Peek | $17.99 | one-time |
| Motherboard Integration | $49.99 | one-time |


## Frequently asked questions

### Is The Jerx free?

The Jerx costs $89.99, with no in-app purchases.

### Is DV Numerus free?

DV Numerus costs $79.99, and also offers in-app purchases.

### Do The Jerx or DV Numerus have ads?

Neither The Jerx nor DV Numerus shows ads.

### Which is updated more often, The Jerx or DV Numerus?

The Jerx ships an update every 4 months, and DV Numerus every 5 weeks. Most recently, The Jerx was updated on September 22, 2026 and DV Numerus on September 18, 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.*