# ExamCram vs Central Billing System

The clearest difference is in-app purchases: Central Billing System at none against ExamCram's 4. Central Billing System also leads on iOS requirement (11.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. ExamCram sells 4 in-app purchases, starting at $4.99 per month. Central Billing System asks for nothing beyond the download.

## The numbers

| Metric | ExamCram | Central Billing System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (42 ratings)](https://appshunter.io/ios/app/examcram-study-ai-quizzes/id1595934993/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 38 MB |
| Requires iOS | 18.0 | **11.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Ink](https://appshunter.io/developer/1571600412) | [Krystal Digital Network Solutions](https://appshunter.io/developer/1646948391) |

## What reviewers say

### ExamCram

[App page](https://appshunter.io/ios/app/examcram-study-ai-quizzes/id1595934993)

Transform your notes and lectures into interactive study materials like quizzes and flashcards with AI. Record live lectures or upload files to generate personalized practice sessions. Save time and improve your grades with this efficient study tool.

**Highlights:** Live lecture recording to generate study materials, Convert files (PDF, Word, PowerPoint) into quizzes, AI-powered quick quizzes, Adaptive smart flashcards, Ethical AI for responsible study help

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Pro | $4.99 | per month |
| One Upload (1) | $0.99 | one-time |
| More Uploads (3) | $2.99 | one-time |
| Many Uploads (5) | $4.99 | one-time |


### Central Billing System

[App page](https://appshunter.io/ios/app/central-billing-system/id1661103467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExamCram free?

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

### Is Central Billing System free?

Central Billing System is free to download, with no in-app purchases.

### Do ExamCram or Central Billing System have ads?

Neither ExamCram nor Central Billing System shows ads.

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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.*