BioFlash vs LLM Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BioFlash
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Turn a quick question into a clearer understanding. BioFlash brings together focused explanations, visual references and quizzes for study at your own pace. EXPLORE Cells, DNA, inheritance, evolution, plants, body systems, immunity and relationships in nature. SUBJECT TOOLS References for cells, biological processes, anatomy and genetics, with diagrams and concise facts. 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. Try the app with a 10-minute local preview, started by you. It does not start a subscription. Continued access requires an annual subscription. The current price and any eligible introductory offer are shown by your store before confirmation. Subscriptions renew automatically unless canceled in your store account. Subscription access needs periodic online verification. Privacy policy and terms of use: https://sites.google.com/view/etemidev/privacy-policy-bioflash
LLM Master
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Master LLM Agent engineering from zero to production engineer level. •112 lessons · ~1.5M characters in-depth content Onboarding → LLM Foundation → Agent Engineering → RAG → Production → Frameworks → ERP/ABAP applied → Advanced → Extended tracks (Python, FastAPI, LangGraph, Vector DB, MCP, Multimodal, Deployment, hands-on projects). •Zero-hallucination principle Every factual claim is backed by verified official documentation, listed as sources. No speculation, no unverified info. •AI Tutor (Claude-powered) 1:1 Q&A grounded in lesson context. Drag any passage in the body and ask about that specific part — auto-quoted in the question. •Learning tools • 5-question applied quizzes (not rote memorization — application/judgment/scenarios) • Bookmarks across lessons with unified view • Font size & Korean TTS (Web Speech API) • Home-screen Quick Actions (resume / bookmarks / AI tutor) •For LLM Agent / AI Engineer interview prep, ML engineer transitioners, AI product developers, RAG/Agent system builders. •Topics Prompt Engineering, Tool Use, Structured Outputs, Context Windows, ReAct, Reflexion, Planning, Memory, MCP, RAG (Chunking, Advanced patterns, Eval, Vector DB internals), Eval, Guardrails, Observability, Cost Optimization, Prompt Injection, Multi-agent Orchestration, Long-context, Sandboxed Code Execution, LangChain/LangGraph, AutoGen, CrewAI, LlamaIndex, MCP Server, Computer Use, ABAP/SAP, Fine-tuning vs RAG, Distillation/Quantization, Eval Datasets, Multi-tenant, Python/FastAPI, pgvector/Qdrant/Pinecone, Vision, Speech (STT/TTS/Realtime), Image Generation, 2026 Frontier. •Payment A one-time app purchase ($29.99) unlocks 112 lessons, 112 quizzes, bookmarks, Quick Actions, TTS, and all future content updates — forever. The Anthropic Claude-powered AI tutor includes 10 free messages every month; top up via consumable packs (Mini 200 messages · 60 days / Standard 500 messages · 90 days / Power 1,500 messages · 180 days). No subscription, no auto-renewal. Privacy policy: https://www.resonance-space.net/llmstudy-privacy-en.html
Screenshots
Verdict
The clearest difference is price: BioFlash at Free against LLM Master's $22.99. LLM Master's advantage is update cadence (fortnightly vs every 7 months) and device support (4 vs 2). On ads, in-app purchases and iOS requirement 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
BioFlash is free to download; LLM Master costs $22.99 up front. BioFlash sells 1 in-app purchase, starting at $9.99 per year and LLM Master sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
BioFlash ships an update every 7 months, LLM Master fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | BioFlash | LLM Master |
|---|---|---|
| Price | Free — better | $22.99 |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 6 MB |
| Age rating | 9+ | 4+ |
| Developer | Gentiana Etemi | Resonance Space |
In-app purchases
BioFlash
- BioFlash Premium3 Days trial$9.991 Year
LLM Master
- Code Deep DiveFree
- Tutor Mini Pack$2.99
- Tutor Standard Pack$5.99
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- Tutor Power Pack$17.99








