# Tsubook vs Rheology Lite

The clearest difference is in-app purchases: Rheology Lite at none against Tsubook's 10. Tsubook's advantage is update cadence (monthly vs every 20 months) and device support (4 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Tsubook sells 10 in-app purchases, starting at $1.99 per month. Rheology Lite asks for nothing beyond the download.

Tsubook ships an update monthly, Rheology Lite every 20 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Tsubook | Rheology Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (49 ratings)](https://appshunter.io/ios/app/tsubook/id1099214874/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free with in-app purchases | — |
| Size | 185 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Studio Levart](https://appshunter.io/developer/1099214873) | [Sumanta Raha](https://appshunter.io/developer/1630011425) |

## What reviewers say

### Tsubook

[App page](https://appshunter.io/ios/app/tsubook/id1099214874)

This app provides comprehensive information on Traditional Chinese Medicine, including points, meridians, and diagnostic areas. It features 3D anatomical models and detailed point information, serving as a portable reference and toolbox for practitioners and students.

**Highlights:** 3D human body models, 14 TCM meridians, Masunaga's meridians, Diagnosis areas (Hara and Back), 361 main acupuncture points, Over 600 indications, Advanced point details

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited full content (-50%) | $1.99 | per month |
| Unlimited full content | $3.99 | per month |
| Upgrade v6 | $4.99 | one-time |
| Masunaga's meridians | $17.99 | one-time |
| Full content v6 | $39.99 | one-time |
| Content v6 +Diag areas | $49.99 | one-time |
| Content v6 +Masunaga | $59.99 | one-time |
| Full content v6 (x2) | $69.99 | one-time |
| Content v6 +Diag areas (x2) | $79.99 | one-time |
| Content v6 +Masunaga (x2) | $99.99 | one-time |


### Rheology Lite

[App page](https://appshunter.io/ios/app/rheology-lite/id1630011423)

**In-app purchases:** none


## Frequently asked questions

### Is Tsubook free?

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

### Is Rheology Lite free?

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

### Do Tsubook or Rheology Lite have ads?

Neither Tsubook nor Rheology Lite shows ads.

### Which is updated more often, Tsubook or Rheology Lite?

Tsubook ships an update monthly, and Rheology Lite every 20 months. Most recently, Tsubook was updated on November 6, 2026 and Rheology Lite on October 30, 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.*