Comparison

ERB CTP Online vs VEXcode 123

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

VEXcode 123

Read full description

From elementary school through college, VEXcode is a coding environment that meets students at their level. The intuitive layout of VEXcode allows students to get started quickly and easily. VEXcode is consistent across Blocks and Text, across VEX 123, VEX GO, VEX IQ, and VEX V5. As students progress from elementary, middle, and high school, they never have to learn a different blocks, code, or toolbar interface. As a result, students can focus on creating with technology, not trying to navigate a new layout. Drive Forward is the new Hello World We all know that robots attract kids to learn. VEX Robotics and VEXcode are providing opportunities for students of all ages to participate in learning the code that makes these robots work. VEX makes computer science come to life through collaborations, hands-on projects, and engaging experiences. From classrooms to competitions, VEXcode helps to create the next generation of innovators. Drag. Drop. Drive. VEXcode is the perfect platform for those new to coding. Students use the simple drag and drop interface to create functioning programs. Each block's purpose can easily be identified using the visual cues like its shape, color, and label. We've designed VEXcode to allow those who are new to robotics to get their robot up and running faster. Now, students can focus on being creative and learning computer science concepts, not stuck trying to figure out the interface. More accessible than ever VEXcode even helps across language barriers, allowing student to read blocks and comment programs in their native language. Drag & Drop. Powered by Scratch Blocks. Students and Teachers will feel instantly at home with this familiar environment. Video Tutorials. Grasp concepts faster. Built-in tutorials cover every aspect needed to get up to speed fast. And more tutorials are coming. Help is always there. Getting information on blocks is fast and easy. These resources were written by educators, in a form both teachers and students will grasp quickly. Drivetrain Blocks. A breakthrough in simplicity. From driving forward, making precise turns, setting speed, and stopping precisely, VEXcode makes it easier than ever to control a robot. VEXcode Privacy Policy: https://www.vexrobotics.com/software-privacy-policy

Verdict

The call

The clearest difference is update cadence: VEXcode 123 at every 4 months against ERB CTP Online's every 8 months. ERB CTP Online's advantage is iOS requirement (10.2 vs 16.0). On price, ads, in-app purchases 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

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

ERB CTP Online ships an update every 8 months, VEXcode 123 every 4 months. Both last shipped on October 13, 2026.

Scorecard2 real differences · 8 level
ERB CTP Online versus VEXcode 123: the parameters behind the verdict, then further details
ParameterERB CTP OnlineVEXcode 123
PriceFreeFree
Rating1.6 (290 ratings) — better—
Positive reviews19.3% of reviews—
Number of ratings290 — better—
Update frequencyEvery 8 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPad
Requires iOS10.2 — better16.0
Further details — not scored
Size6 MB408 MB
Age rating4+4+
DeveloperInternet Testing Systems (ITS)VEX Robotics, Inc.

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

VEXcode 123

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ERB CTP Online

No in-app purchases

None

VEXcode 123

No in-app purchases

Questions

Is ERB CTP Online free?
ERB CTP Online is free to download, with no in-app purchases.
Is VEXcode 123 free?
VEXcode 123 is free to download, with no in-app purchases.
Do ERB CTP Online or VEXcode 123 have ads?
Neither ERB CTP Online nor VEXcode 123 shows ads.
Which is updated more often, ERB CTP Online or VEXcode 123?
ERB CTP Online ships an update every 8 months, and VEXcode 123 every 4 months. Most recently, ERB CTP Online was updated on October 13, 2026 and VEXcode 123 on October 13, 2026.

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