# Bacchus vs Knowe Astro：Birth Chart

The clearest difference is in-app purchases: Bacchus at none against Knowe Astro：Birth Chart's 4. Bacchus also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads 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. Bacchus asks for nothing beyond the download.

Bacchus ships an update every 5 days, Knowe Astro：Birth Chart every 4 days. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Bacchus | 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 | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 31 MB | 22 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Common Computer Inc.](https://appshunter.io/developer/1434385629) | [占辉 百](https://appshunter.io/developer/1081455103) |

## What reviewers say

### Bacchus

[App page](https://appshunter.io/ios/app/bacchus/id6444384470)

**Features:** Vision Pro support

**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 Bacchus free?

Bacchus 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 Bacchus or Knowe Astro：Birth Chart have ads?

Neither Bacchus nor Knowe Astro：Birth Chart shows ads.

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

Bacchus ships an update every 5 days, and Knowe Astro：Birth Chart every 4 days. Most recently, Bacchus was updated on September 25, 2026 and Knowe Astro：Birth Chart on September 29, 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.*