# StudyLex vs AI Physics Explanation

The clearest difference is ads: StudyLex at none against AI Physics Explanation's shown. StudyLex also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.6). AI Physics Explanation's advantage is update cadence (every 6 weeks vs every 11 months). On price and in-app purchases there is nothing between them.

Both are free to download. StudyLex sells 10 one-off in-app purchases and AI Physics Explanation sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

StudyLex ships an update every 11 months, AI Physics Explanation every 6 weeks. The most recent releases landed on September 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | StudyLex | AI Physics Explanation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Size | 146 MB | 20 MB |
| Requires iOS | **15.5** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [SPARKLE AND, K.K.](https://appshunter.io/developer/1572402899) |

## What reviewers say

### StudyLex

[App page](https://appshunter.io/ios/app/studylex/id6480918023)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - BI | $59.99 | one-time |
| Package - BJ | $59.99 | one-time |
| Package - BK | $69.99 | one-time |
| Package - BL | $69.99 | one-time |
| Package - BM | $79.99 | one-time |
| Package - BN | $79.99 | one-time |
| Package - BO | $89.99 | one-time |
| Package - BR | $99.99 | one-time |
| Package - BP | $99.99 | one-time |
| Package - BQ | $99.99 | one-time |


### AI Physics Explanation

[App page](https://appshunter.io/ios/app/ai-physics-explanation/id6743636113)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $3.99 | per 7 days |
| MonthlySubscription | $5.99 | per month |


## Frequently asked questions

### Is StudyLex free?

StudyLex is free to download, with in-app purchases available.

### Is AI Physics Explanation free?

AI Physics Explanation is free to download, with in-app purchases available.

### Do StudyLex or AI Physics Explanation have ads?

AI Physics Explanation shows ads; StudyLex does not.

### Which is updated more often, StudyLex or AI Physics Explanation?

StudyLex ships an update every 11 months, and AI Physics Explanation every 6 weeks. Most recently, StudyLex was updated on September 12, 2026 and AI Physics Explanation on September 24, 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.*