Chemistry Widget vs LLM Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chemistry Widget
Explore detailed profiles of every element on the periodic table, including their origins, uses, and scientific properties. This app offers interactive Home Screen widgets to discover new elements daily, making science accessible for students and enthusiasts.
- Detailed element profiles
- Origins and etymology
- Main uses and facts
- Home Screen widgets
- Filter by properties (radioactive, toxic)
- Filter by group block
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Meet the atoms that make up the universe! Chemistry Widget brings detailed element profiles with origins, etymology, main uses, and fascinating facts. Handy for students, teachers, or anyone curious about science and chemistry. Chemistry Widget keeps the Periodic Table of the Elements right in your pocket. Discover new elements every day with different types of Home Screen widgets. Learn the details of each element with etymology, uses, electron configuration, oxidation states, group and period, electronegativity, atomic radius, ionization energy, density, electron affinity, standard state, melting and boiling point, and the year it was discovered. Filter and highlight the elements by radioactive, toxic, explosive, or by group block: nonmetals, noble gases, alkali metals, alkaline earth metals, metalloids, post transition metals, transition metals, halogens, lanthanides, and actinides. We have many exciting updates planned, so stay tuned!
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: Chemistry Widget at $0.99 against LLM Master's $22.99. Chemistry Widget also leads on in-app purchases (none vs 4). LLM Master's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.4). On update cadence and ads 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
Chemistry Widget costs $0.99 and LLM Master $22.99 up front. LLM Master sells 4 one-off in-app purchases. Chemistry Widget asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.
| Parameter | Chemistry Widget | LLM Master |
|---|---|---|
| Price | $0.99 — better | $22.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Cecile Lebleu | Resonance Space |
In-app purchases
Chemistry Widget
No in-app purchases
LLM Master
- Code Deep DiveFree
- Tutor Mini Pack$2.99
- Tutor Standard Pack$5.99
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- Tutor Power Pack$17.99
Questions
Is Chemistry Widget free?
Is LLM Master free?
Do Chemistry Widget or LLM Master have ads?
Which is updated more often, Chemistry Widget or LLM Master?
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