# Voltios vs SmartScroll

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.

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.

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.

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.

## The numbers

| Metric | Voltios | SmartScroll |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/voltios-circuit-puzzles/id6779986359/reviews) | [5.0 (14 ratings)](https://appshunter.io/ios/app/smartscroll-lumi-ai-tutor/id6793771903/reviews) |
| Number of ratings | 2 | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#166** | — |
| Size | 6 MB | 118 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ignacio Noguerol Sicilia](https://appshunter.io/developer/6779954213) | [Smartscroll LLC](https://appshunter.io/developer/6793771905) |

## What reviewers say

### Voltios

[App page](https://appshunter.io/ios/app/voltios-circuit-puzzles/id6779986359)

**Currently charting:** #166 Top Paid · Education (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $4.99 | one-time |


### SmartScroll

[App page](https://appshunter.io/ios/app/smartscroll-lumi-ai-tutor/id6793771903)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartScroll Good | $19.99 | per month |
| The Tutoring Program | $49.99 | per month |
| The Full Program | $99.99 | per month |
| Tutoring Program (Yearly) | $449.99 | per year |
| Full Program (Yearly) | $899.99 | per year |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*