# Fluent vs Study Vault AI

The clearest difference is update cadence: Study Vault AI at weekly against Fluent's every 3 weeks. Fluent's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fluent sells 5 in-app purchases, starting at $4.99 per 7 days and Study Vault AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Fluent ships an update every 3 weeks, Study Vault AI weekly. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Fluent | Study Vault AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Freemium | — |
| Size | 111 MB | 30 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Aryan Chaurasia](https://appshunter.io/developer/1607882889) | [Takudzwa Marima](https://appshunter.io/developer/1887252157) |

## What reviewers say

### Fluent

[App page](https://appshunter.io/ios/app/fluent-speak-and-learn-language/id1672450573)

Practice speaking a new language with AI tutors in real-time. Get personalized lessons, instant feedback on pronunciation and grammar, and track your progress. Ideal for travelers, students, and professionals.

**Highlights:** AI-powered conversation practice, Personalized lessons, Real-time pronunciation and grammar feedback, Progress tracking, Support for 30+ languages, Flexible learning schedule

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Monthly Economy | $14.99 | per month |
| Monthly Premium | $19.99 | per month |
| Yearly Economy | $148.99 | per year |
| Yearly Premium | $199.00 | per year |


### Study Vault AI

[App page](https://appshunter.io/ios/app/study-vault-ai/id6761737779)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Vault Pro | $4.99 | per month |
| Study Vault Pro | $29.99 | per year |


## Frequently asked questions

### Is Fluent free?

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

### Is Study Vault AI free?

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

### Do Fluent or Study Vault AI have ads?

Neither Fluent nor Study Vault AI shows ads.

### Which is updated more often, Fluent or Study Vault AI?

Fluent ships an update every 3 weeks, and Study Vault AI weekly. Most recently, Fluent was updated on September 8, 2026 and Study Vault AI on September 12, 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.*