# StudyBuddy AI Study Companion vs Mars AI

StudyBuddy AI Study Companion and Mars AI are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. StudyBuddy AI Study Companion sells 3 in-app purchases, starting at $2.99 per month and Mars AI sells 7 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | StudyBuddy AI Study Companion | Mars AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/mars-ai-study-and-note-taker/id6786825890/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 27 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [out thinking limited](https://appshunter.io/developer/531344384) | [Nexify Labs](https://appshunter.io/developer/1817440343) |

## What reviewers say

### StudyBuddy AI Study Companion

[App page](https://appshunter.io/ios/app/studybuddy-ai-study-companion/id6762263425)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Quarterly | $4.99 | per 3 months |
| Yearly | $9.99 | per year |


### Mars AI

[App page](https://appshunter.io/ios/app/mars-ai-study-and-note-taker/id6786825890)

This app transforms dense academic material into interactive study missions. It automates organization, generates summaries, flashcards, and practice tests from lectures, PDFs, or links, helping users retain information more effectively and reduce study time.

**Highlights:** Instant AI Summaries, Audio Lecture Podcasts, Gamified Test Prep, Interactive AI Chat, Progress Trackers, Lecture Recording & PDF Upload

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mars AI Premium Weekly | $4.99 | per 7 days |
| Mars AI Premium Monthly | $12.99 | per month |
| Mars AI Premium Annual | $49.99 | per year |
| Mars AI Premium Annual | $49.99 | per year |
| Mars AI Premium Annual | $59.99 | per year |
| Mars AI Premium Annual | $69.99 | per year |
| Mars AI Premium Annual | $79.99 | per year |


## Frequently asked questions

### Is StudyBuddy AI Study Companion free?

StudyBuddy AI Study Companion is free to download, with in-app purchases available.

### Is Mars AI free?

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

### Do StudyBuddy AI Study Companion or Mars AI have ads?

Neither StudyBuddy AI Study Companion nor Mars AI 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.*