Comparison

Nexus ACE Explorer vs eigenCalc

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

Head to head

Matrix Calculator for School

Free

📚 Education

No ratingsView app →

About

Nexus ACE Explorer

Features

Read full description

Adaptive Cognitive Evaluation, ACE, is a mobile cognitive control assessment battery inspired by decades of scientific research and Neuroscape experience measuring cognition in diverse populations. The tasks in ACE are standard tests that assess different aspects of cognitive control (attention, working memory, and goal management), modified by incorporating adaptive algorithms, immersive graphics, video tutorials, motivating feedback, and a user-friendly interface.

About

eigenCalc

Features

Read full description

Matrix Calculator that computes eigenvalues and eigenvectors as well as SVD, and that has been tested with 228x228 matrices.

Screenshots

Nexus ACE Explorer4 screens

eigenCalc2 screens

Verdict

The call

The clearest difference is iOS requirement: Nexus ACE Explorer at 12.0 against eigenCalc's 15.5. On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nexus ACE Explorer ships an update every 2 months, eigenCalc monthly. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

Scorecard1 real difference · 5 level

Nexus ACE Explorer versus eigenCalc: the parameters behind the verdict, then further details
Parameter	Nexus ACE Explorer	eigenCalc
Price	Free	Free
Update frequency	Every 2 months	Monthly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	15.5
Further details — not scored
Size	271 MB	2 MB
Age rating	4+	17+
Developer	NEUROSCAPE ALLIANCE	Luis Acevedo-Arreguin

In-app purchases

None

Nexus ACE Explorer

No in-app purchases

None

eigenCalc

No in-app purchases

Questions

Is Nexus ACE Explorer free?

Nexus ACE Explorer is free to download, with no in-app purchases.

Is eigenCalc free?

eigenCalc is free to download, with no in-app purchases.

Do Nexus ACE Explorer or eigenCalc have ads?

Neither Nexus ACE Explorer nor eigenCalc shows ads.

Which is updated more often, Nexus ACE Explorer or eigenCalc?

Nexus ACE Explorer ships an update every 2 months, and eigenCalc monthly. Most recently, Nexus ACE Explorer was updated on October 8, 2026 and eigenCalc on October 4, 2026.