# DYC Polestar vs Corpán

The clearest difference is price: Corpán at Free against DYC Polestar's $99.99. Corpán also leads on update cadence (every 10 days vs every 7 months) and review sentiment (100% vs 71%). DYC Polestar's advantage is in-app purchases (none vs 4). On rating, ratings volume, ads and monetization model there is nothing between them.

Corpán is free to download; DYC Polestar costs $99.99 up front. Corpán sells 4 in-app purchases, starting at $12.99 per month. DYC Polestar asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DYC Polestar against 5.0 for Corpán. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews are what separate them: 71% of DYC Polestar's written reviews are positive against 100% of Corpán's.

DYC Polestar ships an update every 7 months, Corpán every 10 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DYC Polestar | Corpán |
| --- | --- | --- |
| Price | $99.99 | **Free** |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/dyc-polestar/id529245193/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/corpan/id6746082061/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 10 days** |
| Monetization | Paid | Paid |
| Size | 14 MB | 65 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Darren Gibbs](https://appshunter.io/developer/529245196) | [Corpora Inc](https://appshunter.io/developer/1808739895) |

## What reviewers say

### DYC Polestar

[App page](https://appshunter.io/ios/app/dyc-polestar/id529245193)

Generate detailed astrology charts using traditional Chinese methods. This app calculates natal, yearly, and decade cycle charts from birth data. It also includes extensive course notes and interactive lookup features for astrological auspiciousness.

**Highlights:** Polestar (Zi Wei) chart generation, Natal, yearly progression, and decade cycle charts, Solar birth data conversion to stems and branches, PDF chart export, Email and print chart functionality, 300+ pages of class notes, Interactive star auspice lookup

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

**In-app purchases:** none


### Corpán

[App page](https://appshunter.io/ios/app/corpan/id6746082061)

This app offers a multilingual language-learning experience focused on real-world fluency. It provides a vast library of sentences, instant audio pronunciation, and the ability to learn multiple languages simultaneously. New content and games are added weekly through a modular pack system.

**Highlights:** Learn 27 languages, 30,000+ real-world sentences, Instant audio pronunciation, Multilingual learning, Offline-friendly sentence library, Modular Packs for new content and games, SDK for custom content creation

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Content Monthly | $12.99 | per month |
| Corpan Premium Annual | $99.99 | per year |
| Tolstoy - What Men Live By | $0.99 | one-time |
| Fascinating Science Volcanoes | $3.99 | one-time |


## Frequently asked questions

### Is DYC Polestar free?

DYC Polestar costs $99.99, with no in-app purchases.

### Is Corpán free?

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

### Which has better reviews, DYC Polestar or Corpán?

DYC Polestar and Corpán are both rated 5.0 out of 5 on the App Store, from 5 and 10 ratings respectively.

### Do DYC Polestar or Corpán have ads?

Neither DYC Polestar nor Corpán shows ads.

### Which is updated more often, DYC Polestar or Corpán?

DYC Polestar ships an update every 7 months, and Corpán every 10 days. Most recently, DYC Polestar was updated on October 23, 2026 and Corpán on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*