The Jerx vs DV Numerus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Jerx
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.
- Memory loss illusions
- Cognitive impairment effects
- Mind reading capabilities
- Prediction effects
- Dual-reality illusions
- Thought implantation
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The Jerx App is a utility magic app that can be used to create a myriad of different effects, including: - A Cute Memory Loss: Cause a spectator to forget something she just saw. - Pee Hill Pot: Induce a mild, momentary loss of cognitive ability. Just by touching your spectator's head you reduce their reading ability to that of a 6-year-old. - ScribBold: You read a spectator's mind, or one spectator reads another's mind to determine a thought of word or concept that is never written down or spoken aloud. - Chocolate/Vanilla Twist: A perfect 50/50 prediction. - Digital Linger: Create dual-reality effects for one person. - I Know What You Need: Apparently implant a thought in a spectator's mind (requires The Jerx, Volume One book).
DV Numerus
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With Numerus you can convert dates in different formats to create stunning predictions. Send and receive data from and to your favorite magic apps and tools. Convert a date into the days/minutes/hours since or to that day and send it f.e. to Hydra or the Motherboard. Predict their Starsign or the Weekday they were born, as well as the Numerology if you are more into readings. With Celebrity Mode you can predict a celebrity and it's birthday with the selected date. Currently Integrating with Hydra, Glyphs, The Motherboard, WPredict, .inputrrr, 3rd Party API, Clipboard, URL Scheme, Shortcuts & Notes, Watch Peek, Inject, Lumen Pro, Phonewords, Voice Input & Remote function. More integrations coming soon...
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | The Jerx | DV Numerus |
|---|---|---|
| Price | $89.99 | $79.99 — better |
| Rating | 4.9 (11 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #191 — better | — |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 16.6 — better | 18.2 |
| Further details — not scored | ||
| Size | 4 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | Marc Kerstein | Marc Super |
In-app purchases
The Jerx
No in-app purchases
DV Numerus
- Apple Watch Peek$17.99
- Motherboard Integration$49.99
Questions
Is The Jerx free?
Is DV Numerus free?
Do The Jerx or DV Numerus have ads?
Which is updated more often, The Jerx or DV Numerus?
Other comparisons
