# C3 vs Human Design Core

The clearest difference is update cadence: Human Design Core at every 8 days against C3's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. C3 sells 2 in-app purchases, starting at $7.99 per month and Human Design Core sells 7 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

C3 ships an update every 3 weeks, Human Design Core every 8 days. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | C3 | Human Design Core |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/c3-cosmic-connections/id6784862382/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 59 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [C3 Cosmic Connections LLC](https://appshunter.io/developer/6784862384) | [Gyuchul Moon](https://appshunter.io/developer/6795799699) |

## What reviewers say

### C3

[App page](https://appshunter.io/ios/app/c3-cosmic-connections/id6784862382)

This app offers relationship insights based on Western astrology, presented as data about communication and behavior. It provides psychological profiles, compatibility breakdowns for various connection types, and daily mood check-ins. The focus is on grounded, plain-language analysis rather than fate or mysticism.

**Highlights:** Psychological profile from birth chart, Compatibility analysis for friendship, dating, business, creative, Side-by-side chart comparison, Daily mood check-in and private journal, Compatibility reports for anyone, AI-powered cosmic guide

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C3 Catalyst Premium Monthly | $7.99 | per month |
| C3 Premium - Annual | $74.99 | per year |


### Human Design Core

[App page](https://appshunter.io/ios/app/human-design-core/id6795799697)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Practitioner Monthly | $6.99 | per month |
| Analyst Monthly | $14.99 | per month |
| Practitioner Annual | $54.99 | per year |
| Analyst Annual | $89.99 | per year |
| Report Credit | $11.99 | one-time |
| Report Credits x3 | $32.99 | one-time |
| Report Credits x5 | $49.99 | one-time |


## Frequently asked questions

### Is C3 free?

C3 is free to download, with in-app purchases available.

### Is Human Design Core free?

Human Design Core is free to download, with in-app purchases available.

### Do C3 or Human Design Core have ads?

Neither C3 nor Human Design Core shows ads.

### Which is updated more often, C3 or Human Design Core?

C3 ships an update every 3 weeks, and Human Design Core every 8 days. Most recently, C3 was updated on October 22, 2026 and Human Design Core on October 25, 2026.

---

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