Comparison

Eureka Calculator vs iTester

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

Head to head
About

Eureka Calculator

This app is a mobile mathematical programming environment that brings advanced computing power and flexibility to your device. It features a natural symbolic language and an intuitive interface for efficient formula writing and programming.

Highlights
  • Advanced mathematical functions
  • Customizable interface
  • Natural symbolic language (Magic)
  • Intuitive keyboard
  • Efficient programming tool
Features
Read full description

Amazing new mathematical programming tool. Now in offer: 50% off. Eureka is a mathematical programming environment that is able to transfer the characteristics of the most sophisticated programming languages to your personal mobile device (iPhone, iPad) Eureka will prove to be invaluable to your work because of its: • Computing power. It comes with basic and advanced mathematical functions from the most sophisticated libraries. • Flexibility. It can be customised and fully adapted to meet your technical and scientific needs as it can be configured to show the functions that you need for your job and hides those that you do not. • Naturalness. Eureka uses a symbolic language designed and developed in-house called Magic that enables formulae to be written naturally, that is, it uses generally accepted mathematical notation and symbols, which makes formulations extraordinarily natural, easy to use and read. • Ease of use. Its natural language, symbolic representations, meticulously designed keyboard – divided into readily accessible and intuitive panels, its customisable settings and flexibility mean that the system is easy to use and quick to program, all of which makes it a simple and efficient tool.

About

iTester

This application serves as a digital kiosk for students to take assessments. It provides a consistent testing experience across devices, mirroring the functionality of its desktop counterpart. Designed for educational institutions, it ensures secure and reliable delivery of student evaluations.

Highlights
  • Secure test-taking environment
  • Consistent cross-device experience
  • Next-generation assessment delivery
  • Supports student evaluations
Read full description

The iTester app is the test taking kiosk for student assessments. iTester is a next-generation assessment delivery platform developed by Texas-based eMetric LLC. The iTester app offers the same content delivery and features as the desktop application to provide a consistent testing experience for all students. For supported versions, see the technology guidelines posted on the Help & Support site.

Screenshots

Eureka Calculator3 screens

Verdict

The call

The clearest difference is in-app purchases: iTester at none against Eureka Calculator's 2. iTester also leads on update cadence (every 3 months vs every 17 months). Eureka Calculator's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price, rating, ratings volume and ads 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. Eureka Calculator sells 2 one-off in-app purchases. iTester asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Eureka Calculator against 5.0 for iTester. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Eureka Calculator ships an update every 17 months, iTester every 3 months. The most recent releases landed on November 1, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 4 level
Eureka Calculator versus iTester: the parameters behind the verdict, then further details
ParameterEureka CalculatoriTester
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 17 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.0 — better17.6
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperTomas CrespoeMetric LLC

Customer experience

Eureka Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

iTester

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Eureka Calculator

One-time2
  • Premium option for iPhone$4.99
  • Premium option for iPad$9.99
None

iTester

No in-app purchases

Questions

Is Eureka Calculator free?
Eureka Calculator is free to download, with in-app purchases available.
Is iTester free?
iTester is free to download, with no in-app purchases.
Which has better reviews, Eureka Calculator or iTester?
Eureka Calculator and iTester are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Eureka Calculator or iTester have ads?
Neither Eureka Calculator nor iTester shows ads.
Which is updated more often, Eureka Calculator or iTester?
Eureka Calculator ships an update every 17 months, and iTester every 3 months. Most recently, Eureka Calculator was updated on November 1, 2026 and iTester on October 7, 2026.

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