PhysicPro vs Sacred Knowledge Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhysicPro
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Turn a quick question into a clearer understanding. PhysicPro brings together focused explanations, visual references and quizzes for study at your own pace. EXPLORE Motion, forces, energy, fluids, heat, waves, optics, electricity, magnetism and atomic physics. SUBJECT TOOLS Physics calculator, unit converter, equation tools, formulas, constants and diagrams. MAKE YOUR STUDY TIME COUNT - Browse topics and search for the concept you need. - Save favorites in their own screen and track what you have read. - Build quizzes by topic, review answers and follow your results. - Choose a comfortable text size, color theme and light or dark appearance. Learning content and quizzes are available in 14 languages: English, Albanian, German, French, Spanish, Italian, Portuguese, Turkish, Arabic, Hindi, Indonesian, Vietnamese, Simplified Chinese and Traditional Chinese. Learning content is stored on your device. Favorites and progress stay local, with no app account required. Internet is needed for purchases and subscription checks. Start a free 10-minute local preview when you are ready. Once started, the timer keeps running even when you leave or close the app. The preview does not start a subscription or charge you. Continued access requires an annual subscription. The Store shows the current price and any eligible introductory offer before confirmation. Subscriptions renew automatically unless canceled in your Store account before renewal. Any Store free trial converts to a paid subscription unless canceled in time. Purchases, restoration and periodic subscription checks require internet. support@etemidev.com Terms of Use (EULA) & Privacy Policy: https://etemidev.com/privacy/physicpro/#terms https://etemidev.com/privacy/physicpro/
Sacred Knowledge Vault
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.
- 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
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An AI knowledge tool with an exclusive role-playing system featuring two separate knowledge base modes. All conversation data is stored locally to fully protect your privacy. Six Exclusive Roles: You must pick an identity on your first launch: Angel, Demon, Sage, Knight, Fox and Hermit. Each role comes with unique salutations, conversation tones and placeholder texts for the input box. You may switch roles anytime in Settings. The AI opens every reply with role-specific greetings for an immersive Q&A experience. Dual Knowledge Base Modes — Balance of Convenience & Privacy: 1. Sacred Library — Official Built-in Public Knowledge Base It includes ten complete categories: full-stack development, general learning, quotes & proverbs, design thinking, workplace communication, history & literature, finance & psychology, space science and more. Pre-built prompt templates named Wisdom Sparks are available. You can read daily offline quotes without API configuration — ready to use right after installation. 2. Personal Codex — Custom Private Model Knowledge Base (Max Privacy Protection) Create your private knowledge vault by entering your LLM API address, secret key and model name. All conversations are only sent to the third-party interface you configure. The app will not collect, upload or retain your Q&A content on its own. Full chat history is saved locally in the on-device FMDB database with no cloud uploads. You retain full ownership of all your data. Full Suite of Knowledge Management Tools: - Sacred Archives: Conversations are auto-saved locally, paginated and grouped by knowledge base; only accessible on your device. - Sacred Favorites: Long-press any dialogue to save it locally for later review. - Wisdom Sparks: Built-in prompt templates to start knowledge inquiries with one tap. Privacy & Security Guarantees: 1. Local Data Storage: All chats, favorites and history remain in your local database with no automatic cloud uploads. 2. Isolated Private Mode: Messages in your private vault are only relayed to your self-provided model endpoint. We never access your API keys or conversation data. 3. Encrypted API Key Storage: Your custom model keys are securely stored in Keychain with no plaintext caching. 4. Full Data Control: Clear all local chat cache and device data in one tap via Settings. Target Users: Programmers, designers, educators, copywriters, students, casual knowledge seekers, and users who run private LLMs and prioritize data privacy. We keep updating built-in knowledge bases and role interaction experiences continuously.
Screenshots
Verdict
The clearest difference is in-app purchases: Sacred Knowledge Vault at none against PhysicPro's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PhysicPro sells 1 in-app purchase, starting at $8.99 per year. Sacred Knowledge Vault asks for nothing beyond the download.
PhysicPro ships an update every 2 weeks, Sacred Knowledge Vault every 8 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | PhysicPro | Sacred Knowledge Vault |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15 — better |
| Further details — not scored | ||
| Size | 42 MB | 25 MB |
| Age rating | 9+ | 4+ |
| Developer | Gentiana Etemi | 平 何 |
In-app purchases
PhysicPro
- PhysicPro Premium3 Days trial$8.991 Year
Sacred Knowledge Vault
No in-app purchases
Questions
Is PhysicPro free?
Is Sacred Knowledge Vault free?
Do PhysicPro or Sacred Knowledge Vault have ads?
Which is updated more often, PhysicPro or Sacred Knowledge Vault?
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