Comparison

AR Circuits 4D | Physics vs NNN Online

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

Head to head
About

AR Circuits 4D | Physics

Explore and build various circuit boards using augmented reality. This educational game allows children to safely experiment with electrical components and measure voltage and current intensity. It offers a safe and cost-free alternative to hands-on experimentation.

Highlights
  • Augmented reality circuit building
  • Explore sequential, parallel, and combined boards
  • Measure voltage and current intensity
  • Controllable component resistances
  • Safe and cost-free experimentation
Features
Read full description

“AR Danik Circuit Engineering” will help your child to learn how to create and explore various circuit boards with the use of augmented reality technology. App allows you to create boards without costs, safety problems and inconveniences with electric components. The circuits are designed by arranging printed paper component cards and pointing the mobile device camera from the application. At the moment list of electrical circuit components includes: one battery, two switches, six incandescent light bulbs, four resistors, one electric motor, testing component for conductors and dielectrics, six wires and earthing. These components allow to set up sequential, parallel and combined boards. Voltage and current intensity of every circuit can be measured with voltmeter and ammeter. Besides, resistances of light bulbs, resistors and electric motor are controllable; battery has 4 alternative voltages. Attention! Technical requirements for devices: tablet or smartphone with camera, min. 700 mb of free space, 1 GB RAM, iOS 9.3.5 and higher. About IAP: The app offers an auto-renewing subscription based in-app purchase (IAP) Subscription name: Metodist's mode; Subscription cost: $2.00 (USD); Subscription duration: 1 month; Terms of Use: You can read your terms of use here for more details: http://arkids.cards/terms_of_use Auto-renewing subscription: You subscription will be renewed every month i.e. you will be charged every month. • Payment will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. • Any unused portion of the free one month initial period will be forfeited when you purchase a subscription.

About

NNN Online

Features
Read full description

NNN Online — обучающая онлайн-платформа для подготовки к экзаменам. Учащиеся получают доступ к курсам, ежедневным практическим тестам, полным пробным экзаменам и заданиям по школьным предметам с отслеживанием успеваемости и еженедельным рейтингам.

Screenshots

AR Circuits 4D | Physics4 screens
NNN Online3 screens

Verdict

The call

The clearest difference is update cadence: NNN Online at daily against AR Circuits 4D | Physics's every 3 weeks. AR Circuits 4D | Physics's advantage is iOS requirement (7.0 vs 15.0). 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

AR Circuits 4D | Physics ships an update every 3 weeks, NNN Online daily. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
AR Circuits 4D | Physics versus NNN Online: the parameters behind the verdict, then further details
ParameterAR Circuits 4D | PhysicsNNN Online
PriceFreeFree
Rating3.8 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size158 MB53 MB
Age rating4+4+
DeveloperValeriy DanyukYerbolat Mamen

In-app purchases

None

AR Circuits 4D | Physics

No in-app purchases

None

NNN Online

No in-app purchases

Questions

Is AR Circuits 4D | Physics free?
AR Circuits 4D | Physics is free to download, with no in-app purchases.
Is NNN Online free?
NNN Online is free to download, with no in-app purchases.
Do AR Circuits 4D | Physics or NNN Online have ads?
Neither AR Circuits 4D | Physics nor NNN Online shows ads.
Which is updated more often, AR Circuits 4D | Physics or NNN Online?
AR Circuits 4D | Physics ships an update every 3 weeks, and NNN Online daily. Most recently, AR Circuits 4D | Physics was updated on October 24, 2026 and NNN Online on October 9, 2026.

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