# Linguisity vs Grade Vault

The clearest difference is rating: Grade Vault at 5.0 against Linguisity's 3.0. Grade Vault also leads on in-app purchases (none vs 3) and ads (none vs shown). Linguisity's advantage is update cadence (every 6 days vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Linguisity sells 3 in-app purchases, starting at $23.99 per month. Grade Vault asks for nothing beyond the download.

Grade Vault holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Linguisity ships an update every 6 days, Grade Vault every 6 weeks. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Linguisity | Grade Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/linguisity/id6459266909/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/grade-vault/id6739982273/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 8 MB | 4 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mesos Holdings](https://appshunter.io/developer/1506845616) | [Andrew Carlson](https://appshunter.io/developer/1787798578) |

## What reviewers say

### Linguisity

[App page](https://appshunter.io/ios/app/linguisity/id6459266909)

This app uses advanced AI to analyze your writing and provide personalized feedback for improvement. It helps users of all levels write with confidence and clarity in multiple languages, crafting compelling content effortlessly.

**Highlights:** AI-powered writing analysis, Personalized feedback and suggestions, Improve writing confidence and clarity, Craft compelling sentences and paragraphs, Supports multiple languages, Effortless writing tools

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $23.99 | per month |
| Quarterly | $45.99 | per 3 months |
| Yearly | $112.99 | per year |


### Grade Vault

[App page](https://appshunter.io/ios/app/grade-vault/id6739982273)

Easily track academic performance, calculate GPAs, and monitor grades for individual classes or cumulative scores. The app offers customizable formulas, detailed insights, and absence logging, all secured with cloud sync and a privacy-first approach.

**Highlights:** Real-time GPA calculations, Customizable grade formulas, Detailed grade insights, Absence tracking, Cloud sync with iCloud, Privacy-first data handling

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Linguisity free?

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

### Is Grade Vault free?

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

### Which has better reviews, Linguisity or Grade Vault?

Grade Vault is rated higher. Linguisity averages 3.0 out of 5 from 1 ratings, while Grade Vault averages 5.0 from 4 ratings.

### Do Linguisity or Grade Vault have ads?

Linguisity shows ads; Grade Vault does not.

### Which is updated more often, Linguisity or Grade Vault?

Linguisity ships an update every 6 days, and Grade Vault every 6 weeks. Most recently, Linguisity was updated on October 16, 2026 and Grade Vault on September 26, 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.*