Comparison

NBack Buddy vs Circuit Design

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

Head to head
About

NBack Buddy

This app offers scientifically validated training for working memory using the N-Back task. It features multiple stimulus types, adjustable difficulty, and detailed performance tracking in a distraction-free interface.

Highlights
  • N-Back working memory training
  • Multiple stimulus modalities
  • Adjustable difficulty levels (1-9 back)
  • Distraction-free interface
  • Performance tracking and statistics
  • Data export for research
Features
Read full description

N-Back Buddy: Scientific Working Memory Training N-Back Buddy is a professional implementation of the N-Back task, one of the most well-researched cognitive training paradigms for working memory enhancement. Originally developed by Wayne Kirchner in 1958 and popularized by Susanne Jaeggi's research, the N-Back task has become a cornerstone tool in cognitive psychology and neuroscience research. What is the N-Back Task? The N-Back task challenges your working memory by requiring you to remember and match stimuli from N steps back in a sequence. As the "N" increases (1-back, 2-back, 3-back, etc.), the cognitive demand increases proportionally, making it an excellent adaptive training tool for working memory capacity. Key Features: Multiple stimulus modalities (visual, auditory, dual N-Back) Adjustable difficulty levels (1-back through 9-back) Clean, distraction-free interface optimized for testing Comprehensive performance tracking and statistics Configurable session duration and stimulus timing Export data for research analysis No ads, no subscriptions - designed for serious use Who Uses N-Back Buddy? Cognitive psychology researchers conducting working memory studies Neuroscience labs investigating executive function Clinical researchers studying cognitive training interventions Students and professionals seeking evidence-based brain training Anyone interested in scientifically-validated cognitive enhancement Research-Grade Implementation: N-Back Buddy follows established protocols from the cognitive psychology literature, ensuring that the task parameters match those used in published research. This makes it suitable for both personal cognitive training and as a research tool in academic settings. Privacy First: All data stays on your device. Optional data export allows you to analyze your performance using your preferred tools. Whether you're a researcher needing a reliable N-Back implementation, a student learning about working memory, or someone committed to evidence-based cognitive training, N-Back Buddy provides the tools you need in a professional, no-nonsense package.

About

Circuit Design

Features
Read full description

Circuit Design is a powerful and intuitive circuit simulator and schematic editor for iPhone and iPad. Build electronic circuits with drag-and-drop components, simulate voltage and current in real time, and learn electronics through interactive tools and visual analysis. Create professional circuit diagrams using resistors, capacitors, transistors, LEDs, logic gates, microcontrollers, and more. Watch live current flow animations, analyze voltage levels, and test designs instantly with the built-in simulation engine. Perfect for students, engineers, makers, Arduino enthusiasts, and anyone learning electronics. FEATURES • Modern drag-and-drop circuit editor • Real-time circuit simulation • Interactive voltage and current visualization • Huge electronic component library • Smart wire routing and snap-to-grid design • Oscilloscope and waveform preview • PCB layout preview mode • Apple Pencil support on iPad • AI-powered circuit suggestions and error detection • Educational tutorials and guided projects • Dark mode optimized interface • Export circuits as PNG, PDF, and SVG • Cloud sync and project backup Whether you're designing simple LED circuits or advanced electronic systems, Circuit Design gives you a portable electronics lab directly on your device. The App offers two subscription options: -$7.99 Monthly -$29.99 Yearly Prices may vary by location. Privacy Policy: https://privacy.vanlangapps.com Terms of Use: https://tos.vanlangapps.com Should you choose to upgrade to a Pro subscription, payment will be charged to your iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You may cancel automatic renewal and manage your subscription by selecting Manage App Subscriptions in your iTunes Account settings and selecting the subscription you want to modify. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a Pro subscription, where applicable.

Screenshots

NBack Buddy4 screens
Circuit Design3 screens

Verdict

The call

The clearest difference is price: Circuit Design at Free against NBack Buddy's $1.99. NBack Buddy's advantage is in-app purchases (none vs 3) and iOS requirement (14.1 vs 17.0). On 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

Circuit Design is free to download; NBack Buddy costs $1.99 up front. Circuit Design sells 3 in-app purchases, starting at $7.99 per month. NBack Buddy asks for nothing beyond the download.

Scorecard3 real differences · 6 level
NBack Buddy versus Circuit Design: the parameters behind the verdict, then further details
ParameterNBack BuddyCircuit Design
Price$1.99Free — better
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequency—Every 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.1 — better17.0
Further details — not scored
Size35 MB5 MB
Age rating4+4+
DeveloperByrtTu Anh Do

In-app purchases

None

NBack Buddy

No in-app purchases

3 purchases

Circuit Design

Subscriptions2
  • Circuit Design Premium Monthly$7.991 Month
  • Circuit Design Premium Yearly$29.991 Year
One-time1
  • Circuit Design Premium Lifetime$39.99

Questions

Is NBack Buddy free?
NBack Buddy costs $1.99, with no in-app purchases.
Is Circuit Design free?
Circuit Design is free to download, with in-app purchases available.
Do NBack Buddy or Circuit Design have ads?
Neither NBack Buddy nor Circuit Design shows ads.

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