# StudyFi vs CombiPerm Calculator by CS

The clearest difference is ads: StudyFi at none against CombiPerm Calculator by CS's shown. StudyFi also leads on iOS requirement (16.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. StudyFi sells 16 in-app purchases, starting at $11.99 per month and CombiPerm Calculator by CS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | StudyFi | CombiPerm Calculator by CS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/studyfi-ai-study-and-flashcards/id6749504762/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 162 MB | 12 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Studyfi s.r.o.](https://appshunter.io/developer/1830822869) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### StudyFi

[App page](https://appshunter.io/ios/app/studyfi-ai-study-and-flashcards/id6749504762)

Transform your study materials into AI-powered flashcards, summaries, quizzes, and podcasts. This tool helps students of all levels grasp complex topics faster and improve their grades. Connect with a student community for shared tips and experiences.

**Highlights:** AI-generated flashcards with spaced repetition, Instant summaries and notes from long texts, Personalized AI quizzes and practice tests, Study podcasts from your notes, Mind maps for understanding complex topics, AI chat for academic questions and essay help, Student community for sharing and support

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyFi Monthly Promo | $11.99 | per month |
| StudyFi Monthly | $14.99 | per month |
| StudyFi Monthly | $14.99 | per month |
| StudyFi Monthly (Trial) | $14.99 | per month |
| StudyFi Quarterly | $17.99 | per 3 months |
| StudyFi Quarterly | $17.99 | per 3 months |
| StudyFi Quarterly (Trial) | $17.99 | per 3 months |
| StudyFi Yearly | $49.99 | per year |
| StudyFi Yearly | $49.99 | per year |
| StudyFi Yearly (Trial) | $49.99 | per year |
| Audio Pack Starter | $6.99 | one-time |
| Audio Pack Starter | $9.99 | one-time |
| Audio Pack Standard | $17.99 | one-time |
| Audio Pack Standard | $19.99 | one-time |
| Audio Pack Pro | $34.99 | one-time |
| Audio Pack Pro | $39.99 | one-time |


### CombiPerm Calculator by CS

[App page](https://appshunter.io/ios/app/combiperm-calculator-by-cs/id6761089836)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is StudyFi free?

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

### Is CombiPerm Calculator by CS free?

CombiPerm Calculator by CS is free to download, with in-app purchases available.

### Do StudyFi or CombiPerm Calculator by CS have ads?

CombiPerm Calculator by CS shows ads; StudyFi does not.

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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.*