# AWS Cert Prep with AI vs AI Physics Explanation

The clearest difference is ads: AWS Cert Prep with AI at none against AI Physics Explanation's shown. AWS Cert Prep with AI also leads on device support (3 vs 1) and iOS requirement (14.0.0 vs 17.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. AWS Cert Prep with AI sells 3 in-app purchases, starting at $3.99 per 7 days 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.

AWS Cert Prep with AI ships an update every 2 months, AI Physics Explanation every 6 weeks. The most recent releases landed on September 14, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | AWS Cert Prep with AI | AI Physics Explanation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 49 MB | 20 MB |
| Requires iOS | **14.0.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jiahao Wang](https://appshunter.io/developer/1792193575) | [SPARKLE AND, K.K.](https://appshunter.io/developer/1572402899) |

## What reviewers say

### AWS Cert Prep with AI

[App page](https://appshunter.io/ios/app/aws-cert-prep-with-ai-leanify/id6741297971)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $3.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Yearly Plan(58% OFF!) | $44.99 | per year |


### 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 AWS Cert Prep with AI free?

AWS Cert Prep with AI 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 AWS Cert Prep with AI or AI Physics Explanation have ads?

AI Physics Explanation shows ads; AWS Cert Prep with AI does not.

### Which is updated more often, AWS Cert Prep with AI or AI Physics Explanation?

AWS Cert Prep with AI ships an update every 2 months, and AI Physics Explanation every 6 weeks. Most recently, AWS Cert Prep with AI was updated on September 14, 2026 and AI Physics Explanation on August 16, 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.*