# Chaipang Addition vs Stellar Math

The clearest difference is update cadence: Chaipang Addition at fortnightly against Stellar Math's every 8 months. Chaipang Addition also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Chaipang Addition sells 1 one-off in-app purchase and Stellar Math sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Chaipang Addition ships an update fortnightly, Stellar Math every 8 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Chaipang Addition | Stellar Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stellar-math/id6753595457/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 8 months |
| Monetization | — | Freemium |
| Size | 136 MB | 113 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wecref Co., Ltd.](https://appshunter.io/developer/1570555584) | [Matthew Leonard](https://appshunter.io/developer/522479113) |

## What reviewers say

### Chaipang Addition

[App page](https://appshunter.io/ios/app/chaipang-addition/id1608482068)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 차이팡 덧셈 광고제거 | $2.99 | one-time |


### 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 |


## Frequently asked questions

### Is Chaipang Addition free?

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

### Is Stellar Math free?

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

### Do Chaipang Addition or Stellar Math have ads?

Neither Chaipang Addition nor Stellar Math shows ads.

### Which is updated more often, Chaipang Addition or Stellar Math?

Chaipang Addition ships an update fortnightly, and Stellar Math every 8 months. Most recently, Chaipang Addition was updated on October 7, 2026 and Stellar Math on October 15, 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.*