# Blood Type Diet® vs The Ring Studio

The clearest difference is price: The Ring Studio at Free against Blood Type Diet®'s $3.99. The Ring Studio also leads on update cadence (every 3 months vs every 5 months). Blood Type Diet®'s advantage is chart position (#10 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

The Ring Studio is free to download; Blood Type Diet® costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Blood Type Diet® ships an update every 5 months, The Ring Studio every 3 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Blood Type Diet® | The Ring Studio |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.2 (196 ratings)](https://appshunter.io/ios/app/blood-type-diet/id379485721/reviews)** | — |
| Number of ratings | **196** | — |
| Positive reviews | 58.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | — |
| Best chart rank | **#10** | — |
| Size | 13 MB | 14 MB |
| Requires iOS | **12.0** | 13.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [D'Adamo Personalized Nutrition®](https://appshunter.io/developer/379485724) | [THE RING STUDIO LLC](https://appshunter.io/developer/1791553714) |

## What reviewers say

### Blood Type Diet®

[App page](https://appshunter.io/ios/app/blood-type-diet/id379485721)

**Currently charting:** #10 Top Paid · Health & Fitness, #104 Top Paid (US App Store)

Access personalized food lists based on your blood type and secretor status. Easily look up beneficial, neutral, and avoid foods for healthy eating. Features include shopping list creation and recipe access.

**Highlights:** Blood Type and Secretor Status selection, Beneficial, Neutral, and Avoid food lists, Food search by category or name, Shopping list creation and emailing, Family food list for multiple blood types, Recipe access (internet required), Latest food updates

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Life changing
- 🚀 Convenient and easy to use
- 👍 Helpful for shopping and meal planning
- 👍 Accurate food lists for blood types
- 👍 Improved health and energy

**What reviewers complain about**

- 🐛 Inconsistent information compared to book
- 🐛 Buggy and unreliable
- 💰 Overpriced for limited functionality
- 🔒 Privacy concerns with data sharing

**Reported bugs**

- Shopping list items disappear
- App crashes or freezes
- Recipes include avoid foods for blood type

**Requested features**

- Add oat milk to beverage list
- Include genotype-specific food lists
- Allow saving favorite recipes
- Generate shopping lists from recipes
- Support for multiple blood types in household


### The Ring Studio

[App page](https://appshunter.io/ios/app/the-ring-studio/id6740774721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blood Type Diet® free?

Blood Type Diet® costs $3.99, with no in-app purchases.

### Is The Ring Studio free?

The Ring Studio is free to download, with no in-app purchases.

### Do Blood Type Diet® or The Ring Studio have ads?

Neither Blood Type Diet® nor The Ring Studio shows ads.

### Which is updated more often, Blood Type Diet® or The Ring Studio?

Blood Type Diet® ships an update every 5 months, and The Ring Studio every 3 months. Most recently, Blood Type Diet® was updated on October 16, 2026 and The Ring Studio on October 1, 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.*