# Phluent vs Mars AI

The clearest difference is in-app purchases: Phluent at none against Mars AI's 7. Phluent also leads on iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Mars AI sells 7 in-app purchases, starting at $4.99 per 7 days. Phluent asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Phluent against 5.0 for Mars AI. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Phluent | Mars AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/phluent/id6761305341/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/mars-ai-study-and-note-taker/id6786825890/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 40 MB | 27 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ellen Jones](https://appshunter.io/developer/1888786558) | [Nexify Labs](https://appshunter.io/developer/1817440343) |

## What reviewers say

### Phluent

[App page](https://appshunter.io/ios/app/phluent/id6761305341)

This educational app helps users build fluency in pharmacology through consistent, low-stakes practice. It focuses on repeated exposure to drug names, classes, and concepts to improve recognition and recall. Ideal for students and healthcare professionals seeking to reinforce their knowledge.

**Highlights:** Practice-based learning activities, Fluency-focused design with repetition, Progress tracking for engagement, Clear, distraction-free interface, Supports learning for students and professionals

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

**In-app purchases:** none


### 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 Phluent free?

Phluent is free to download, with no in-app purchases.

### Is Mars AI free?

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

### Which has better reviews, Phluent or Mars AI?

Phluent and Mars AI are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do Phluent or Mars AI have ads?

Neither Phluent 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.*