# Mystic Echo vs Knowe Astro：Birth Chart

The clearest difference is in-app purchases: Mystic Echo at none against Knowe Astro：Birth Chart's 4. Mystic Echo also leads on iOS requirement (12.0 vs 18.0). Knowe Astro：Birth Chart's advantage is ads (none vs shown) and update cadence (every 4 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Knowe Astro：Birth Chart sells 4 in-app purchases, starting at $4.99 per month. Mystic Echo asks for nothing beyond the download.

Mystic Echo ships an update fortnightly, Knowe Astro：Birth Chart every 4 days. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Mystic Echo | Knowe Astro：Birth Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowe-astrobirth-chart/id6752608152/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 125 MB | 22 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [TUGBA AYHAN](https://appshunter.io/developer/1786777994) | [占辉 百](https://appshunter.io/developer/1081455103) |

## What reviewers say

### Mystic Echo

[App page](https://appshunter.io/ios/app/mystic-echo/id6748145502)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knowe Astro：Birth Chart

[App page](https://appshunter.io/ios/app/knowe-astrobirth-chart/id6752608152)

This app generates detailed natal charts, synastry comparisons, and transit readings. It offers AI-powered interpretations and includes a built-in astrology library for in-depth study. Ideal for both beginners and experienced astrologers seeking a clear workspace.

**Highlights:** Accurate natal and birth charts, Synastry and compatibility analysis, Transit tracking and timing, AI chart interpretation, In-app astrology library, Detailed placement study

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Membership | $4.99 | per month |
| Monthly Ultra Membership | $6.99 | per month |
| Yearly Pro Membership | $19.99 | per year |
| Yearly Ultra Membership | $29.99 | per year |


## Frequently asked questions

### Is Mystic Echo free?

Mystic Echo is free to download, with no in-app purchases.

### Is Knowe Astro：Birth Chart free?

Knowe Astro：Birth Chart is free to download, with in-app purchases available.

### Do Mystic Echo or Knowe Astro：Birth Chart have ads?

Mystic Echo shows ads; Knowe Astro：Birth Chart does not.

### Which is updated more often, Mystic Echo or Knowe Astro：Birth Chart?

Mystic Echo ships an update fortnightly, and Knowe Astro：Birth Chart every 4 days. Most recently, Mystic Echo was updated on October 4, 2026 and Knowe Astro：Birth Chart on September 29, 2026.

---

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