# Stellar Math vs Lexicon

The clearest difference is ads: Stellar Math at none against Lexicon's shown. Lexicon's advantage is update cadence (every 3 weeks vs every 8 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Stellar Math sells 2 in-app purchases, starting at $9.99 per month and Lexicon sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Stellar Math against 5.0 for Lexicon. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Stellar Math ships an update every 8 months, Lexicon every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stellar Math | Lexicon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/stellar-math/id6753595457/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/lexicon-master-english/id6757132710/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 113 MB | 13 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Leonard](https://appshunter.io/developer/522479113) | [Lojas Software Corp](https://appshunter.io/developer/1799458054) |

## What reviewers say

### Stellar Math

[App page](https://appshunter.io/ios/app/stellar-math/id6753595457)

Master math with an AI tutor that adapts to your learning style and pace. Get instant, step-by-step solutions to problems by snapping a photo and engage with a 24/7 AI chat for clear explanations. Track your progress and build confidence from basic arithmetic to advanced calculus.

**Highlights:** AI-powered step-by-step solutions, Photo problem solver, Interactive AI tutor chat, Personalized study plans, Progress tracking and analytics, Comprehensive math topic coverage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stellar Math Pro | $9.99 | per month |
| Stellar Math Pro Yearly | $69.99 | per year |


### Lexicon

[App page](https://appshunter.io/ios/app/lexicon-master-english/id6757132710)

This app offers a comprehensive English language curriculum with interactive tools for grammar, writing, literature, and professional communication. It provides detailed explanations, progress tracking, and diverse question formats to enhance learning.

**Highlights:** University-grade English curriculum, 16 distinct disciplines covered, Interactive learning tools, Diverse question formats, Smart hints system with video explanations, Detailed feedback for retention, Progress tracking across subjects

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Page Turner | $0.99 | one-time |
| Inkwell & Quill | $0.99 | one-time |
| Deus Ex Machina | $1.99 | one-time |
| Scholar's Anthology | $1.99 | one-time |
| The Lost Tomes | $3.99 | one-time |
| Speed Reader | $3.99 | one-time |
| The Grand Encyclopedia | $7.99 | one-time |
| The Ghostwriter | $7.99 | one-time |


## Frequently asked questions

### Is Stellar Math free?

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

### Is Lexicon free?

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

### Which has better reviews, Stellar Math or Lexicon?

Stellar Math and Lexicon are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Stellar Math or Lexicon have ads?

Lexicon shows ads; Stellar Math does not.

### Which is updated more often, Stellar Math or Lexicon?

Stellar Math ships an update every 8 months, and Lexicon every 3 weeks. Most recently, Stellar Math was updated on November 5, 2026 and Lexicon on October 31, 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.*