# Daily Brain vs Sacred Knowledge Vault

The clearest difference is price: Sacred Knowledge Vault at Free against Daily Brain's $7.99. Sacred Knowledge Vault also leads on update cadence (every 8 days vs every 3 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Sacred Knowledge Vault is free to download; Daily Brain costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Daily Brain ships an update every 3 months, Sacred Knowledge Vault every 8 days. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Daily Brain | Sacred Knowledge Vault |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | — | Free |
| Size | 3 MB | 25 MB |
| Requires iOS | 26.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JUSTIN GUL](https://appshunter.io/developer/1883015160) | [平 何](https://appshunter.io/developer/1630512266) |

## What reviewers say

### Daily Brain

[App page](https://appshunter.io/ios/app/daily-brain/id6760964551)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sacred Knowledge Vault

[App page](https://appshunter.io/ios/app/sacred-knowledge-vault/id6792727759)

This AI tool offers a unique role-playing system with two knowledge base modes for private or public inquiries. It prioritizes user privacy by storing all conversation data locally and securely. Explore diverse topics with pre-built templates and manage your knowledge with built-in tools.

**Highlights:** Role-playing system with unique identities, Dual knowledge base modes (public & private), Local data storage for maximum privacy, Pre-built prompt templates (Wisdom Sparks), Conversation archiving and favorites, Encrypted API key storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Daily Brain free?

Daily Brain costs $7.99, with no in-app purchases.

### Is Sacred Knowledge Vault free?

Sacred Knowledge Vault is free to download, with no in-app purchases.

### Do Daily Brain or Sacred Knowledge Vault have ads?

Neither Daily Brain nor Sacred Knowledge Vault shows ads.

### Which is updated more often, Daily Brain or Sacred Knowledge Vault?

Daily Brain ships an update every 3 months, and Sacred Knowledge Vault every 8 days. Most recently, Daily Brain was updated on October 25, 2026 and Sacred Knowledge Vault on October 16, 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.*