# Sina vs Kepler

The clearest difference is in-app purchases: Kepler at none against Sina's 1. Kepler also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (13.0 vs 15.6). Sina's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Sina sells 1 in-app purchase, starting at $9.99 per month. Kepler asks for nothing beyond the download.

Sina ships an update every 3 weeks, Kepler every 3 days. The most recent releases landed on October 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Sina | Kepler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (133 ratings)](https://appshunter.io/ios/app/sina/id6746072477/reviews)** | — |
| Number of ratings | **133** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 38 MB | 80 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ALTIBBI Limited](https://appshunter.io/developer/1239182903) | [Aiman Hommoss](https://appshunter.io/developer/1872970663) |

## What reviewers say

### Sina

[App page](https://appshunter.io/ios/app/sina/id6746072477)

An AI-powered health companion that provides clear, conversational answers to your medical questions. It draws on trusted sources to offer guidance and can connect you with real doctors when necessary. An optional subscription unlocks extended access.

**Highlights:** AI-powered health conversations, Trusted medical information, Easy-to-understand responses, Connect with real doctors, Optional Pro subscription

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sina Pro | $9.99 | per month |


### Kepler

[App page](https://appshunter.io/ios/app/kepler/id6758451356)

**In-app purchases:** none


## Frequently asked questions

### Is Sina free?

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

### Is Kepler free?

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

### Do Sina or Kepler have ads?

Kepler shows ads; Sina does not.

### Which is updated more often, Sina or Kepler?

Sina ships an update every 3 weeks, and Kepler every 3 days. Most recently, Sina was updated on October 15, 2026 and Kepler on September 8, 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.*