Comparison

ERB CTP Online vs Mathspace for Students

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

Head to head
About

ERB CTP Online

This app provides a battery of assessments in listening, reading, vocabulary, writing, and mathematics. It offers instant scoring and feedback for real-time guidance on student learning. The program also includes tests for verbal and quantitative reasoning.

Highlights
  • Listening assessment
  • Reading assessment
  • Vocabulary and writing tests
  • Mathematics assessment
  • Verbal and quantitative reasoning tests
  • Instant scoring and feedback
Read full description

The Comprehensive Testing Program (CTP 5) is a battery of assessments designed to provide instructionally useful information about student performance in the key areas of school achievement: listening, reading, vocabulary, writing, and mathematics. In addition, CTP 5 includes for test levels 3 - 10 two tests to measure verbal and quantitative reasoning. The results of these measures can be used to compare more content-specific, curriculum-based measures of performance (scores on the achievement tests) to the more general, derived skills that both result from and enable school achievement (scores on the reasoning tests). This comparison can prove to be highly useful, especially for identifying those students whose skills and achievement scores show marked discrepancies. The online version is available through the CTP Portal for instant scoring and a science test in test levels 3 through 10. We know time is of the essence, so all of our online assessments provide instant feedback to schools and students, enabling real time guidance for instruction and learning.

About

Mathspace for Students

This app offers a digital platform for students to solve math problems online, providing instant feedback and step-by-step assistance. It features a vast library of interactive questions across various math topics and supports multiple international curricula.

Highlights
  • Interactive math problems
  • Instant feedback
  • Step-by-step help
  • Handwriting recognition
  • Extensive question bank
  • Multiple curriculum support
Features
Read full description

Mathspace is the first computer based system designed to be the right help at the right time for every mathematics student. With over 80,000 interactive lessons, questions and step-by-step support built in, it's like having a tutor available 24/7. Support at every step: Students don't just submit a final answer and hope for the best. Mathspace provides instant feedback at each step of their working, so they can catch mistakes early, understand why, and keep moving forward with confidence. Write maths naturally: Our handwriting recognition lets students write their working by hand, just as they would on paper. Mathspace reads it, marks it, and responds — no keyboard required. Adaptive learning that keeps up: Every student's path through Mathspace is personalised. Questions adapt to each learner's level, so the work is always challenging without being overwhelming. Curriculum-aligned content: - Australia: Australian Curriculum, as well as state curriculums Years 3–12 - USA: Common Core, Pre-Algebra, Algebra I & II, Geometry - UK: Key Stage 3, Key Stage 4, GCSE - Singapore: Secondary 1–4 - Hong Kong: Secondary 1–3 - International: World of Maths and International Baccalaureate For learners everywhere: Whether students are completing a teacher-assigned task or working ahead on their own, Mathspace keeps them engaged, supported, and making progress.

Verdict

The call

The clearest difference is rating: Mathspace for Students at 3.9 against ERB CTP Online's 1.6. Mathspace for Students also leads on update cadence (weekly vs every 8 months) and review sentiment (29% vs 19%). ERB CTP Online's advantage is iOS requirement (10.2 vs 17.0). On price, ratings volume, 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.

ReceptionRating · Positive reviews · Number of ratings

Mathspace for Students holds the better App Store score, 3.9 against 1.6. Both are backed by a comparable volume of ratings — 324 and 402 respectively. Written reviews point the same way: 19% of ERB CTP Online's written reviews are positive against 29% of Mathspace for Students's.

UpkeepUpdate frequency

ERB CTP Online ships an update every 8 months, Mathspace for Students weekly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard4 real differences · 6 level
ERB CTP Online versus Mathspace for Students: the parameters behind the verdict, then further details
ParameterERB CTP OnlineMathspace for Students
PriceFreeFree
Rating1.6 (324 ratings)3.9 (402 ratings) — better
Positive reviews19.3% of reviews29.4% of reviews — better
Number of ratings324402 — better
Update frequencyEvery 8 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPad
Requires iOS10.2 — better17.0
Further details — not scored
Size6 MB65 MB
Age rating4+4+
DeveloperInternet Testing Systems (ITS)Mathspace Pty Ltd

Customer experience

ERB CTP Online

All ratings290 ratings
Positive14.1%
Neutral1.4%
Negative84.5%
Written reviews109 reviews
Positive19.3%
Neutral2.8%
Negative78.0%

Mathspace for Students

All ratings395 ratings
Positive70.1%
Neutral7.8%
Negative22.0%
Written reviews170 reviews
Positive29.4%
Neutral10.0%
Negative60.6%

User reviews

ERB CTP Online

From 324 App Store ratings

What we love

  • 🤩 Engaging and addictive gameplay
  • 🎓 Helpful educational content
  • 👍 Intuitive user interface

Room to improve

  • 🐛 Frequent crashes and technical issues
  • 🕰️ Excessively long and tedious tests
  • 💤 Boring and uninspired design
  • 🔒 Locked device during testing

Mathspace for Students

From 402 App Store ratings

What we love

  • 👍 Good for students
  • 💡 Adaptive learning
  • 🚀 Helpful features (hints, videos)

Room to improve

  • 🐛 Handwriting recognition issues
  • 🤔 Confusing UI/UX
  • 🤯 Frustrating experience
  • 🤖 Unhelpful AI assistant
  • 🕰️ Slow and laggy

Bugs and requests

ERB CTP Online

Reported bugs

3 issues
  • Freezing and lagging during tests
  • Inability to exit the app during testing
  • Compatibility issues with older devices

Requested features

3 requests
  • Improved graphics and visuals
  • Customizable controls and settings
  • More engaging and interactive learning experiences

Mathspace for Students

Reported bugs

4 issues
  • Incorrect answers marked as correct
  • Repeated questions despite completion
  • Login and account issues
  • Content loading failures

Requested features

4 requests
  • Add keyboard input option
  • Improve handwriting recognition
  • Customize question difficulty
  • Better error handling and feedback

In-app purchases

None

ERB CTP Online

No in-app purchases

None

Mathspace for Students

No in-app purchases

Questions

Is ERB CTP Online free?
ERB CTP Online is free to download, with no in-app purchases.
Is Mathspace for Students free?
Mathspace for Students is free to download, with no in-app purchases.
Which has better reviews, ERB CTP Online or Mathspace for Students?
Mathspace for Students is rated higher. ERB CTP Online averages 1.6 out of 5 from 324 ratings, while Mathspace for Students averages 3.9 from 402 ratings.
Do ERB CTP Online or Mathspace for Students have ads?
Neither ERB CTP Online nor Mathspace for Students shows ads.
Which is updated more often, ERB CTP Online or Mathspace for Students?
ERB CTP Online ships an update every 8 months, and Mathspace for Students weekly. Most recently, ERB CTP Online was updated on October 24, 2026 and Mathspace for Students on October 23, 2026.

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