Comparison

Inertia Pro vs Cognito magic

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Inertia Pro

This app allows users to force any content on any website, including social media posts, products, and text. It's integrated into a web browser for seamless use during performances. Additional paid features enable editing text and using the app on borrowed phones.

Highlights
  • Force any Instagram photo or video
  • Force specific items on eBay or Amazon
  • Force Netflix movies or news headlines
  • Edit text on any website
  • Use on borrowed phones with Momentum add-on
  • Remote performance capabilities via Xeno Sites
Features
Read full description

Inertia Pro is a completely new forcing app that relies on a diabolical new principle. Inertia Pro lets you force *anything* on *any website*... whilst the spectator is looking at the phone. It’s built in to a web browser, allowing you to use it to force pretty much anything, such as: • An Instagram photo or video on ANY profile. • A specific item for sale on eBay. • Any Netflix movie. • A product from Amazon. • A line of text or single word on a news website. • Any photo from Google Images. • ...and so much more! (Note: The page used is completely genuine - this will work on ANY website the spectator chooses, and in ANY language!) “Marc is without doubt the single greatest mentalism app creator I know. From design to execution, his apps are absolutely flawless. Inertia Pro is a prime example of why I trust in his work so implicitly, it is jaw droppingly good and represents one of the most cutting-edge mentalism releases to date!” - Michael Murray Plus, with Inertia Pro's new Edit Mode (paid feature), you can now edit the text on any site to ensure your force is included. ALSO - Inertia Pro: Momentum (paid feature) now also lets you use Inertia Pro on a borrowed phone. With multiple pairing methods available and a redirect process, Momentum is an extra purchase within Inertia Pro that will let you perform the same effect using a borrowed phone. Furthermore: WikiTest Pro Tools users can even use further integrations between Inertia Pro: Momentum. If you have Xeno, you can use your own Xeno Sites with Inertia Pro, or use any of the public Xeno Sites available in the gallery. And... you can perform Inertia Pro with any Xeno Site remotely! This can all happen on the spectator's device, without you touching it. Perfect for Zoom shows or long-distance performances! The Jerx wrote this about Inertia Pro: “You know those phone forces where you would hold the phone upside down and have them scroll blindly and whatever picture or item they landed on would be forced (usually because their scrolling wasn’t doing anything)? Well, this app allows you to do that type of force face-up while the spectator looks at the phone. It’s so good and *feels* exactly like it should.” - Andy @ The Jerx --- Inertia Pro is for entertainment purposes only, designed for professional performers. This app does not provide true mind reading abilities or anything similar. Please get in touch to discuss TV or video performance rights.

About

Cognito magic

This is the official companion app for a web-based magic tool. It provides access to a range of magic tricks and illusions. Enhance your magic performances with this digital assistant.

Highlights
  • Companion to web tool
  • Magic tricks and illusions
  • Digital assistant for performances
Read full description

This app is the official companion app to the Cognito web tool by Murphy's Magic Apps

Screenshots

Inertia Pro3 screens
Cognito magic4 screens

Verdict

The call

The clearest difference is review sentiment: Inertia Pro at 100% against Cognito magic's 47%. Inertia Pro also leads on rating (4.9 vs 3.6). Cognito magic's advantage is price (Free vs $69.99) and iOS requirement (12.0 vs 16.6). On ratings volume, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Cognito magic is free to download; Inertia Pro costs $69.99 up front. Inertia Pro sells 2 one-off in-app purchases and Cognito magic sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Inertia Pro holds the better App Store score, 4.9 against 3.6. Both are backed by a comparable volume of ratings — 31 and 28 respectively. Written reviews point the same way: 100% of Inertia Pro's written reviews are positive against 47% of Cognito magic's.

UpkeepUpdate frequency

Inertia Pro ships an update weekly, Cognito magic fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Inertia Pro versus Cognito magic: the parameters behind the verdict, then further details
ParameterInertia ProCognito magic
Price$69.99Free — better
Rating4.9 (31 ratings) — better3.6 (28 ratings)
Positive reviews100.0% of reviews — better47.1% of reviews
Number of ratings31 — better28
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS16.612.0 — better
Further details — not scored
Size14 MB32 MB
Age rating17+4+
DeveloperMarc KersteinMurphy's Magic

Customer experience

Inertia Pro

All ratings30 ratings
Positive96.7%
Neutral3.3%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cognito magic

All ratings28 ratings
Positive60.7%
Neutral3.6%
Negative35.7%
Written reviews17 reviews
Positive47.1%
Neutral5.9%
Negative47.1%

In-app purchases

2 purchases

Inertia Pro

One-time2
  • Edit Mode$12.99
  • Momentum$59.99
1 purchases

Cognito magic

One-time1
  • Cognito$39.99

Questions

Is Inertia Pro free?
Inertia Pro costs $69.99, and also offers in-app purchases.
Is Cognito magic free?
Cognito magic is free to download, with in-app purchases available.
Which has better reviews, Inertia Pro or Cognito magic?
Inertia Pro is rated higher. Inertia Pro averages 4.9 out of 5 from 31 ratings, while Cognito magic averages 3.6 from 28 ratings.
Do Inertia Pro or Cognito magic have ads?
Neither Inertia Pro nor Cognito magic shows ads.
Which is updated more often, Inertia Pro or Cognito magic?
Inertia Pro ships an update weekly, and Cognito magic fortnightly. Most recently, Inertia Pro was updated on October 25, 2026 and Cognito magic on October 24, 2026.

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