# Tzolk'in Maya vs Knowe Astro：Birth Chart

The clearest difference is price: Knowe Astro：Birth Chart at Free against Tzolk'in Maya's $0.99. Tzolk'in Maya's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 18.0). On update cadence, ads and device support there is nothing between them.

Knowe Astro：Birth Chart is free to download; Tzolk'in Maya costs $0.99 up front. Knowe Astro：Birth Chart sells 4 in-app purchases, starting at $4.99 per month. Tzolk'in Maya asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | Tzolk'in Maya | Knowe Astro：Birth Chart |
| --- | --- | --- |
| Price | $0.99 | **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 | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | — | Freemium |
| Size | 3 MB | 22 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ale Mohamad](https://appshunter.io/developer/569018219) | [占辉 百](https://appshunter.io/developer/1081455103) |

## What reviewers say

### Tzolk'in Maya

[App page](https://appshunter.io/ios/app/tzolkin-maya/id849056209)

**Features:** macOS Compatibility, iMessage stickers

**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 Tzolk'in Maya free?

Tzolk'in Maya costs $0.99, 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 Tzolk'in Maya or Knowe Astro：Birth Chart have ads?

Neither Tzolk'in Maya nor Knowe Astro：Birth Chart shows ads.

### Which is updated more often, Tzolk'in Maya or Knowe Astro：Birth Chart?

Tzolk'in Maya ships an update every 4 days, and Knowe Astro：Birth Chart every 4 days. Most recently, Tzolk'in Maya was updated on October 15, 2026 and Knowe Astro：Birth Chart 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.*