# Stroboscopic Effect vs Monster ABC

The clearest difference is price: Stroboscopic Effect at Free against Monster ABC's $4.99. Stroboscopic Effect also leads on review sentiment (100% vs 85%) and ratings volume (18 vs 2). Monster ABC's advantage is rating (4.5 vs 2.7) and update cadence (every 3 months vs every 84 months). On ads, in-app purchases and device support there is nothing between them.

Stroboscopic Effect is free to download; Monster ABC costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Monster ABC holds the better App Store score, 4.5 against 2.7. That said, the two scores are not equally well evidenced: Stroboscopic Effect has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of Stroboscopic Effect's written reviews are positive against 85% of Monster ABC's, so the app with the better star average is not the one people write more warmly about.

Stroboscopic Effect ships an update every 84 months, Monster ABC every 3 months. The most recent releases landed on October 6, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Stroboscopic Effect | Monster ABC |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [2.7 (18 ratings)](https://appshunter.io/ios/app/stroboscopic-effect/id403009621/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/monster-abc-learning/id677638145/reviews)** |
| Number of ratings | **18** | 2 |
| Positive reviews | **100.0% of reviews** | 85.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 84 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 176 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Magnin & Associates](https://appshunter.io/developer/312671572) | [wonderkind GmbH](https://appshunter.io/developer/408718588) |

## What reviewers say

### Stroboscopic Effect

[App page](https://appshunter.io/ios/app/stroboscopic-effect/id403009621)

Explore the fascinating stroboscopic effect by rotating various objects. Observe how objects can appear to stop or move backward at specific speeds. This app allows you to manipulate rotation direction and speed to witness these optical illusions.

**Highlights:** Rotate 4 different objects, Adjust rotation speed, Change rotation direction, Observe stroboscopic effect, Supports iPad, iPhone, and Retina display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Monster ABC

[App page](https://appshunter.io/ios/app/monster-abc-learning/id677638145)

This educational app uses engaging monsters and interactive audio-visual elements to teach preschoolers letters and initial sounds. It supports literacy acquisition through fun, game-like activities with a motivating reward system.

**Highlights:** Learn letters via initial sounds, Audio-visual interaction, Spoken words and letters, Motivating reward system, Hand-drawn pictures and sounds, English and German versions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stroboscopic Effect free?

Stroboscopic Effect is free to download, with no in-app purchases.

### Is Monster ABC free?

Monster ABC costs $4.99, with no in-app purchases.

### Which has better reviews, Stroboscopic Effect or Monster ABC?

Monster ABC is rated higher. Stroboscopic Effect averages 2.7 out of 5 from 18 ratings, while Monster ABC averages 4.5 from 2 ratings.

### Do Stroboscopic Effect or Monster ABC have ads?

Neither Stroboscopic Effect nor Monster ABC shows ads.

### Which is updated more often, Stroboscopic Effect or Monster ABC?

Stroboscopic Effect ships an update every 84 months, and Monster ABC every 3 months. Most recently, Stroboscopic Effect was updated on October 6, 2026 and Monster ABC on October 21, 2026.

---

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