Stroboscopic Effect vs Structural Formulas Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stroboscopic Effect
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.
- Rotate 4 different objects
- Adjust rotation speed
- Change rotation direction
- Observe stroboscopic effect
- Supports iPad, iPhone, and Retina display
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Did you ever notice the wheels on the car driving next to you sometimes appear to be spinning backwards? This is referred to as the stroboscopic (or wagon-wheel) effect. It occurs when an object is rotated at certain speeds, making the object to appear to stop or even go backwards. Rotate 4 different objects in either direction (clockwise or counterclockwise). You can increase the speed until you see it appear to stop or reverse. On one of the objects, a wheel with different colored alternating rings, you can make it appear as if the rings of this single option are turning in opposite directions. Universal App - supports native iPad, iPhone and iPhone 4's Retina display. WARNING - Those with Epilepsy or those subject to seizures are usually cautioned to avoid strobe lights or similar effects.
Structural Formulas Study
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Learn chemistry the easy way. Explore, search, and filter over 100 molecular structures with clear diagrams and essential data — perfect for exam prep or daily study. Features - 100+ molecules - Structural formulas with detailed properties (mass, density, pKa, etc.) - Quick search & category filters - Offline access – no internet required - Ideal for high school & college chemistry students Make chemistry study simple, efficient, and always at your fingertips!
Screenshots
Verdict
The clearest difference is update cadence: Structural Formulas Study at every 5 weeks against Stroboscopic Effect's every 84 months. Stroboscopic Effect's advantage is iOS requirement (8.0 vs 18.4). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Stroboscopic Effect ships an update every 84 months, Structural Formulas Study every 5 weeks. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.
| Parameter | Stroboscopic Effect | Structural Formulas Study |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (18 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 84 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Magnin & Associates | Jun Yamabe |
In-app purchases
Stroboscopic Effect
No in-app purchases
Structural Formulas Study
No in-app purchases
Questions
Is Stroboscopic Effect free?
Is Structural Formulas Study free?
Do Stroboscopic Effect or Structural Formulas Study have ads?
Which is updated more often, Stroboscopic Effect or Structural Formulas Study?
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