Comparison

Voltios vs SmartScroll

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

Head to head
About

Voltios

A puzzle game that teaches the fundamentals of electricity through interactive circuit building. Explore various electrical concepts like switches, short circuits, and Ohm's law in a visually engaging and playful manner. Designed for families with no ads or tracking, offering a complete learning experience with a single purchase.

Highlights
  • Interactive circuit building
  • Learn electrical concepts visually
  • Explore switches, fuses, and Ohm's law
  • 68 levels across 9 worlds
  • Offline play
  • No ads or tracking
Features
Currently charting
Read full description

Build circuits, light up the world. Voltios is a puzzle game for learning electricity visually. Connect wires, close switches and watch what changes: a bulb lights up, a motor spins or a fuse protects the circuit. LEARN BY DOING • Discover why current needs a closed circuit. • Experiment with switches, conductors and insulators. • Avoid short circuits and learn how to use fuses. • Compare series and parallel circuits. • Explore Ohm's law and measure voltage and current with the multimeter. 10 WORLDS, 78 LEVELS Keep the original 68 campaign levels and discover 10 new levels in Laboratory, available after completing World 5. All content is included in the app purchase and opens through gameplay progression. First Sparks · Switch It! · Danger: Short Circuit · Measure & Choose · Ohm's Law · Circuit Master · Clocks & Crossings · Real Life · Magnets & Motors · Laboratory. EXPERIMENT AT YOUR OWN PACE • Component explanations, hints and learning recaps. • A daily challenge to keep practising. • A refreshed interface and a multimeter integrated into the board. • English and Spanish. For iPhone and iPad with iOS/iPadOS 17 or later. ONE APP PURCHASE No subscriptions, in-app purchases or ads. No Voltios account required. Gameplay works offline; iCloud, Game Center and sending analytics require a connection. Progress is saved on your device and synced through iCloud when available. Game Center is optional and retains the original campaign achievements. We use TelemetryDeck for interaction analytics with anonymized identifiers, without advertising tracking. See our privacy policy for details.

About

SmartScroll

This app provides a structured learning experience for students in grades 6-12, covering core subjects with adaptive lessons and practice. It features an AI tutor for assistance and a homework helper, all managed by a parent with a focus on healthy learning habits and privacy.

Highlights
  • Comprehensive curriculum for grades 6-12
  • Adaptive learning feed
  • AI-powered tutor with hints
  • Homework problem photo helper
  • Detailed progress tracking and parent dashboard
  • Ad-free and privacy-focused design
Features
Read full description

Homework Help Should Go Further Getting an answer can solve tonight’s problem. Learning what comes next is different. SmartScroll is a parent-managed learning and AI tutoring app for students in grades 6–12. It brings homework help, short lessons, guided practice, structured AI tutoring, review, and visible progress together in one place. MEET LUMI, YOUR AI TUTOR Students can ask Lumi for help by typing a question or taking a photo. Lumi supports Math, Science, English, History, Spanish, and Financial Literacy with hints, guiding questions, worked examples, and step-by-step explanations designed to teach the method—not simply provide an answer. SmartScroll also includes scheduled, AI-guided tutoring sessions based on the learner’s subject, grade, progress, recent activity, and identified gaps. Lumi is an automated AI tutor, not a live human tutoring appointment, and AI can sometimes be wrong. Important answers should be checked with a teacher or textbook. LEARN LIKE YOU SCROLL SmartScroll turns a familiar vertical feed into short learning interactions. Students move through lessons and practice while the feed responds to what they have worked on and where they may need more support. A structured learning Path shows what comes next, organizes skills into courses and units, and gives students a clear place to continue instead of leaving them with disconnected answers. HOMEWORK PHOTO HELP Take a photo. Type a question. Ask Lumi. Then continue into practice, review, or the learning Path. When photo help is available, images are processed to answer the request. SmartScroll does not save uploaded homework images in its application database or object storage. AI-provider handling is described in our Privacy Policy. SmartScroll is designed to make homework help the beginning of learning—not the end of it. PRACTICE. REVIEW. REMEMBER. SmartScroll uses guided examples, independent practice, review, and remediation to help students revisit skills and build progress over time. Goals, streaks, levels, mastery indicators, and progress feedback make consistent studying easier to understand. BUILT FOR STUDENTS. VISIBLE TO PARENTS. Students get a dedicated learning experience. Parents can link learner devices, review progress demonstrated in SmartScroll, and see tutoring reports across linked devices. Families with Full Program access can support up to three learners. HEALTHY AND PRIVATE BY DESIGN SmartScroll optimizes what students learn, not how long they stay. There is no infinite autoplay, no public social feed, no advertising, and no sale of personal data. Daily goals and natural stopping points help learning end at a healthy time. Students do not create accounts with an email or password. Parent accounts manage access and linked learners. SmartScroll collects only the information needed to operate the learning experience, and parents can review or delete their family’s data. SUBSCRIPTIONS SmartScroll offers auto-renewable monthly and yearly subscriptions through Apple In-App Purchase. Eligible new subscribers may receive an introductory trial. The exact localized price, billing period, trial eligibility, and renewal terms appear before purchase. Payment is charged to the Apple ID at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period and can be managed or canceled in Apple ID subscription settings. Privacy Policy: https://smartscroll.org/privacy Terms of Use: https://smartscroll.org/terms Ask. Practice. Review. Progress. SmartScroll. Learn like you scroll.

Screenshots

Voltios4 screens
SmartScroll4 screens

Verdict

The call

The clearest difference is price: SmartScroll at Free against Voltios's $0.99. SmartScroll also leads on update cadence (every 5 days vs every 2 weeks) and ratings volume (14 vs 2). Voltios's advantage is chart position (#166 vs unranked). On rating, 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

SmartScroll is free to download; Voltios costs $0.99 up front. Voltios sells 1 one-off in-app purchase and SmartScroll sells 5 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Voltios against 5.0 for SmartScroll. That said, the two scores are not equally well evidenced: SmartScroll has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Voltios ships an update every 2 weeks, SmartScroll every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Voltios versus SmartScroll: the parameters behind the verdict, then further details
ParameterVoltiosSmartScroll
Price$0.99Free — better
Rating5.0 (2 ratings)5.0 (14 ratings)
Positive reviews—100.0% of reviews
Number of ratings214 — better
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#166 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size6 MB118 MB
Age rating4+9+
DeveloperIgnacio Noguerol SiciliaSmartscroll LLC

Customer experience

Voltios

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

SmartScroll

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Voltios

One-time1
  • Full Game$4.99
5 purchases

SmartScroll

Subscriptions5
  • SmartScroll Good14 Days trial$19.991 Month
  • The Tutoring Program14 Days trial$49.991 Month
  • The Full Program14 Days trial$99.991 Month
Show 2 more
  • Tutoring Program (Yearly)14 Days trial$449.991 Year
  • Full Program (Yearly)14 Days trial$899.991 Year

Questions

Is Voltios free?
Voltios costs $0.99, and also offers in-app purchases.
Is SmartScroll free?
SmartScroll is free to download, with in-app purchases available.
Which has better reviews, Voltios or SmartScroll?
Voltios and SmartScroll are both rated 5.0 out of 5 on the App Store, from 2 and 14 ratings respectively.
Do Voltios or SmartScroll have ads?
Neither Voltios nor SmartScroll shows ads.
Which is updated more often, Voltios or SmartScroll?
Voltios ships an update every 2 weeks, and SmartScroll every 5 days. Most recently, Voltios was updated on October 25, 2026 and SmartScroll on October 24, 2026.

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