# 知时 vs Knowe Astro：Birth Chart

The clearest difference is rating: Knowe Astro：Birth Chart at 5.0 against 知时's 4.0. Knowe Astro：Birth Chart also leads on update cadence (every 4 days vs every 3 weeks) and device support. 知时's advantage is in-app purchases (none vs 4) and iOS requirement (14.0 vs 18.0). On price and ratings volume 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. 知时 asks for nothing beyond the download.

Knowe Astro：Birth Chart holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

知时 ships an update every 3 weeks, Knowe Astro：Birth Chart every 4 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 知时 | Knowe Astro：Birth Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/id1108463535/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowe-astrobirth-chart/id6752608152/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 163 MB | 22 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Guilin Cui](https://appshunter.io/developer/848880043) | [占辉 百](https://appshunter.io/developer/1081455103) |

## What reviewers say

### 知时

[App page](https://appshunter.io/ios/app/id1108463535)

**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 知时 free?

知时 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.

### Which has better reviews, 知时 or Knowe Astro：Birth Chart?

Knowe Astro：Birth Chart is rated higher. 知时 averages 4.0 out of 5 from 1 ratings, while Knowe Astro：Birth Chart averages 5.0 from 1 ratings.

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

知时 ships an update every 3 weeks, and Knowe Astro：Birth Chart every 4 days. Most recently, 知时 was updated on October 7, 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.*