# Astronomy Flashcards vs Physics Lessons,Topics

The clearest difference is price: Physics Lessons,Topics at Free against Astronomy Flashcards's $1.99. Physics Lessons,Topics also leads on update cadence (every 2 months vs every 41 months). Astronomy Flashcards's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Physics Lessons,Topics is free to download; Astronomy Flashcards costs $1.99 up front. Physics Lessons,Topics sells 4 in-app purchases, starting at $4.99 per 7 days. Astronomy Flashcards asks for nothing beyond the download.

Astronomy Flashcards ships an update every 41 months, Physics Lessons,Topics every 2 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Astronomy Flashcards | Physics Lessons,Topics |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/physics-lessonstopics/id6751053588/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 41 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 39 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hasan Cakir](https://appshunter.io/developer/814343093) | [Ali Umer](https://appshunter.io/developer/1584417594) |

## What reviewers say

### Astronomy Flashcards

[App page](https://appshunter.io/ios/app/astronomy-flashcards/id1404895830)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Lessons,Topics

[App page](https://appshunter.io/ios/app/physics-lessonstopics/id6751053588)

Master physics concepts with this comprehensive study companion. It offers detailed definitions, step-by-step explanations, formulas, quizzes, and flashcards for over 200 topics. Learn at your own pace, track progress, and study offline.

**Highlights:** 200+ physics topics covered, Detailed definitions and explanations, Practice quizzes with instant feedback, Flashcards for efficient memorization, Progress tracking, Offline access

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Lessons | $4.99 | per 7 days |
| Physics Lessons | $6.99 | per month |
| Physics Lessons | $29.99 | per year |
| Physics Lessons | $49.99 | one-time |


## Frequently asked questions

### Is Astronomy Flashcards free?

Astronomy Flashcards costs $1.99, with no in-app purchases.

### Is Physics Lessons,Topics free?

Physics Lessons,Topics is free to download, with in-app purchases available.

### Do Astronomy Flashcards or Physics Lessons,Topics have ads?

Physics Lessons,Topics shows ads; Astronomy Flashcards does not.

### Which is updated more often, Astronomy Flashcards or Physics Lessons,Topics?

Astronomy Flashcards ships an update every 41 months, and Physics Lessons,Topics every 2 months. Most recently, Astronomy Flashcards was updated on October 13, 2026 and Physics Lessons,Topics on October 15, 2026.

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