Comparison

Arlektra vs Knowledge Nerds

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

Head to head
About

Arlektra

This app uses augmented reality to teach electronics and circuits. Visualize complex theories, build circuits with step-by-step 3D instructions, and explore electrical parts in detail. Learn to use tools like a digital multimeter with interactive guidance.

Highlights
  • Augmented reality 3D instructions
  • Visualize electrical theories
  • Step-by-step circuit building
  • Explore electrical parts in 3D
  • Learn multimeter usage
  • Interactive troubleshooting guidance
Read full description

Arlektra teaches electronics and circuits hands-on, with real-time Augmented Reality 3D instructions and animations through your phone or tablet. Now you easily learn, build and see the world of electronics and circuits like never before! When using Arlektra's complete learning kit, or the demo Arlektra Image Target, learners will: [SEE THEORY] Arlektra will allow you to easily visualize and comprehend the most difficult electrical concepts and theories, as they come alive right before your very eyes. You'll finally understand the unseen complexities of electrical theory, with vision and insight beyond your imagination. [BUILD CIRCUITS] Using step-by-step Visual (3D), Audio and Text instructions, Arlektra will teach you to build electrical circuits, with ease. You’ll learn to build various types of circuits, while using different electrical parts to do so - all without any assistance. [EXPLORE PARTS] Arlektra will allow you to see real electrical parts in detailed 3D exploded and 360 views - while you look through your mobile device. You'll learn about their inner workings and operation, and how they connect and work together in electrical circuits. [LEARN TOOLS] Arlektra will teach you how to you use a digital multimeter in ways that have never been done before, with 3D assistance. You'll learn a multimeters functions and how to test circuits and conduct basic electrical troubleshooting procedures. Arlektra comes with everything you want and need. No other app in the universe can teach you electronics and circuits like Arlektra. It will inspire and prepare you for the future, beyond your imagination! [Requirements] 
*Camera Permissions: Needed by the Arlektra app to produce the Augmented Reality experience through your rear camera

 *Guest Menu Lessons: To use these lessons, you must first download and print the required Arlektra Image Target from: arstemlabs.com/arlektra-demo

About

Knowledge Nerds

Read full description

Get Personalized Learning Outcomes for everyone. An in-depth performance analysis, where you can know your strong and weak points, your all India rank, your state rank etc. You will also get a virtual tutor who is completely dedicated to bringing out the best in you. It will prioritize your concepts, chapters, topics, and questions through machine learning. Get this innovative learning experience only on Knowledge Nerds Academy!!

Screenshots

Arlektra4 screens
Knowledge Nerds4 screens

Verdict

The call

The clearest difference is in-app purchases: Arlektra at none against Knowledge Nerds's 10. Knowledge Nerds's advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (15.5 vs 17.0). On price, ads 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. Knowledge Nerds sells 10 one-off in-app purchases. Arlektra asks for nothing beyond the download.

UpkeepUpdate frequency

Arlektra ships an update every 6 months, Knowledge Nerds every 2 months. The most recent releases landed on July 9, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Arlektra versus Knowledge Nerds: the parameters behind the verdict, then further details
ParameterArlektraKnowledge Nerds
PriceFreeFree
Rating2.4 (7 ratings) — better—
Positive reviews20.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.5 — better
Further details — not scored
Size433 MB146 MB
Age rating4+4+
DeveloperAR STEM LABSOnline Learning

In-app purchases

None

Arlektra

No in-app purchases

10 purchases

Knowledge Nerds

One-time10
  • Package - AV$34.99
  • Package - AY$39.99
  • Package - AZ$39.99
Show 7 more
  • Package - BB$39.99
  • Package - BD$39.99
  • Package - AW$39.99
  • Package - BE$44.99
  • Package - BG$49.99
  • Package - BH$49.99
  • Package - BF$49.99

Questions

Is Arlektra free?
Arlektra is free to download, with no in-app purchases.
Is Knowledge Nerds free?
Knowledge Nerds is free to download, with in-app purchases available.
Do Arlektra or Knowledge Nerds have ads?
Neither Arlektra nor Knowledge Nerds shows ads.
Which is updated more often, Arlektra or Knowledge Nerds?
Arlektra ships an update every 6 months, and Knowledge Nerds every 2 months. Most recently, Arlektra was updated on July 9, 2026 and Knowledge Nerds on September 22, 2026.

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