# Pansophia: Science Reference — Science & Engineering Formulas > Comprehensive STEM reference and study guide with built-in tools. (iPhone/iPad app by Bonsai Horizons, LLC.) - Source: https://appshunter.io/ios/app/pansophia-science-reference/id6760565801 (this page in markdown: same URL + `.md`) - Developer: [Bonsai Horizons, LLC](https://appshunter.io/developer/1885017794) - Category: Education, Reference - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 29 MB - Languages: American English - Released: 2026-03-30 - Data updated: 2026-07-29 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/pansophia-science-reference/id6760565801/reviews.md ## What is Pansophia? Pansophia is an offline STEM reference for engineers, scientists, and students — 25,400+ formulas, compounds, and reference tables across 18 disciplines including physics, chemistry, biology, mathematics, and every major field of engineering. No account. No ads. No tracking. No internet required. About a third of every discipline is free. WHY PANSOPHIA Every entry is curated, cross-referenced, and verified — not generated. When you need a decay constant, a beam capacity, or a CAS number, it has to be right, and it has to work without a signal. Built for the lab bench, the job site, and the exam desk. The kind of data you used to search for daily, or flip through a mountain of handbooks to find — now in one place. WHAT'S INSIDE - 3,000+ biological species with habitat, functions, structures, timeline - 1,200+ chemical compounds with properties, synthesis, hazards & CAS numbers - 700+ mechanical components — fasteners, bearings, hinges, latches, brackets, clamps, belts/chains, flanges, gears, couplings, pumps, pneumatics + hydraulics, etc - 500+ electronic components — transistors, op-amps, microcontrollers (Arduino/STM32/ESP32/RP2040), motors, sensors, LCDs, batteries, etc - 350+ chemistry lab reference entries — solvents, buffers (Tris/PBS/HEPES), catalysts (Pd, Grubbs, MacMillan), spectroscopy (NMR/IR/MS), HPLC/GC chromatography - 254 materials — alloys, polymers, ceramics, composites, AHSS, bulk metallic glasses, high-entropy alloys, fracture toughness & creep data - 231 astronomical objects — Messier catalog, notable stars, exoplanets, black holes - 280+ structural engineering tables — AISC W/HSS shapes & beam design, RC design, NDS wood design, foundations (spread/pile/mat/retaining), seismic design, soil classification, building codes, bridges - 80+ chemical engineering reference — distillation & absorption unit ops, TEMA heat exchangers, CSTR/PFR/PBR/fluidized reactors, ASME VIII pressure vessels, API 650/620 storage tanks, relief systems, ISA-5.1 P&ID symbols, NEC/ATEX hazardous areas, HAZOP/LOPA/SIL methodology - 220+ biomedical reference entries — FDA device classes, ASTM F-series implants, ISO 10993 biocompatibility, clinical trial phases, lab values (CBC/BMP/CMP/LFTs/ABG), vital signs by age, imaging (X-ray/CT/MRI/US/PET) - 280+ pharmacology drug classes — full WHO ATC coverage with mechanism, dosing, adverse effects, interactions - 111 nuclear isotopes with cross-sections and decay data - 72 named organic reactions with reagents, conditions & mechanisms - 61 algorithms with time/space complexity analysis - 56 statistical tests with assumptions, formulas & when to use each - 48 math identities — trig, integrals, Laplace & Fourier transform pairs 18 DISCIPLINES Physics, Chemistry, Biology, Mathematics, Computer Science, Artificial Intelligence, Statistics & Data Science, Electrical Engineering, Mechanical Engineering, Civil & Structural Engineering, Chemical Engineering, Biomedical Engineering, Industrial & Systems Engineering, Nuclear Engineering, Materials Science, Astronomy & Astrophysics, Earth & Environmental BUILT-IN TOOLS - Scientific Calculator — 52 built-in constants, trig/log/factorial, history - Unit Converter — 22 unit families including electrical & magnetic - Physical Constants — 163 constants with uncertainties, searchable & copyable - Quiz & Flashcards — SM-2 spaced repetition for coursework and exam prep CROSS-DISCIPLINE CONNECTIONS 27,500+ cross-references link related concepts across fields. Tap any reference to jump between disciplines — see how thermodynamics connects to chemical engineering, or how linear algebra powers machine learning. WORKS OFFLINE — ALL DATA BUNDLED All 25,400+ entries ship inside the app. Dark theme, native LaTeX equation rendering, and interactive 3D molecular models. PRICING About a third of every discipline is free — no account, no time limit. Unlock all 18 for $9.99, or one for $0.99. One-time purchase, no subscriptions. ## Key features - 3,000+ biological species data - 1,200+ chemical compounds reference - Extensive engineering component data - Scientific calculator and unit converter - Quiz and flashcard tools with spaced repetition - Cross-discipline concept linking ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock Biomedical Engineering | $0.99 | one-time | | Unlock Astronomy | $0.99 | one-time | | Unlock Civil Engineering | $0.99 | one-time | | Unlock Materials Science | $0.99 | one-time | | Unlock Artificial Intelligence | $0.99 | one-time | | Unlock Statistics | $0.99 | one-time | | Unlock Pharmacology | $0.99 | one-time | | Unlock Earth Science | $0.99 | one-time | | Unlock Nuclear Engineering | $0.99 | one-time | | Unlock All Disciplines | $9.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/pansophia-science-reference/id6760565801/reviews.md ### 5/5 — Amazing STEM Resource! *2026-05-18* Fantastic resource for anyone interested in or studying STEM fields! Wish it would have been available when my daughter was studying pharmacy in college! Would have been a wonderful resource for her! ## Frequently asked questions about Pansophia ### What kind of STEM data does Pansophia offer? Pansophia provides extensive data across 18 disciplines, including over 3,000 biological species, 1,200+ chemical compounds, and detailed information on mechanical, electronic, and structural engineering components. ### Does Pansophia have a free trial? Pansophia is completely free to download and use, so no trial period is necessary. ### What built-in tools are available in Pansophia? Pansophia includes a scientific calculator with 52 constants, a unit converter for 22 unit families, and a searchable list of 163 physical constants. ### How does Pansophia help with studying? It offers quiz and flashcard tools utilizing SM-2 spaced repetition across all disciplines, aiding in effective learning and retention of complex STEM concepts. ### What is the age rating for Pansophia? Pansophia has an age rating of 12+, making it suitable for secondary school students and above. ### On which devices can I use Pansophia? Currently, Pansophia is supported on iPhone devices. ### How often is Pansophia updated? The app was last updated on May 21, 2026, indicating active development and regular content additions or improvements. ### Does Pansophia have ads? No, Pansophia does not contain advertisements, providing an uninterrupted learning experience. ## Version history (last 5 releases) ### 2.2.0 — 2026-07-24 3D MOLECULE VIEWER — EXPANDED 94 more substances now render in 3D. Ions, solvents, indicators, and protecting groups that have no CAS number — and so previously had no model — now display full interactive structures. Over 1,000 substances now have 3D models. 3D structures now appear on chemistry reference entries, not just compounds. Solvents, buffers, catalysts, and indicators in the lab reference sections now carry their own interactive models. Multiple forms per structure. Where a substance exists in more than one meaningful conformation or crystal form, you can switch between them, each with a caption explaining what you're looking at. Conformer ensembles for 15 flexible molecules. Butane through octane, ethylene glycol, glycerol, the short-chain alcohols, glycine, alanine, the diacids, and diethyl ether now carry multiple low-energy conformations with their Boltzmann populations — so you see how the molecule actually moves rather than a single frozen pose. ### 2.1.2 — 2026-05-21 A major redesign: • Rebuilt navigation. All 18 disciplines on one screen as a compact icon grid. Each discipline opens to a visual button grid of its sections (Core Topics, Reference Appendices, Discoveries, Worked Examples, Canonical Experiments, Thought Experiments, Unsolved Problems, Methods) — no more endless scrolling through collapsible lists. • Bigger free tier. About a third of every discipline is free, forever — no account, no time limit, no favorites picker. The first entry of every section is always free, plus a personalized random selection so different installs see different free entries. • Chemistry: new Chemical Compounds button collects all 1,212+ compounds in one place. Reference appendices now are split by topic on Chemistry, Materials Science, Math, Civil/Mechanical/Chemical Engineering, and Computer Science. • Streamlined first launch — dive straight in. • Accessibility throughout: Dynamic Type, VoiceOver, Bold Text, contrast. ### 2.1.1 — 2026-05-12 A major redesign: • Rebuilt navigation. All 18 disciplines on one screen as a compact icon grid. Each discipline opens to a visual button grid of its sections (Core Topics, Reference Appendices, Discoveries, Worked Examples, Canonical Experiments, Thought Experiments, Unsolved Problems, Methods) — no more endless scrolling through collapsible lists. • Bigger free tier. About a third of every discipline is free, forever — no account, no time limit, no favorites picker. The first entry of every section is always free, plus a personalized random selection so different installs see different free entries. • Chemistry: new Chemical Compounds button collects all 1,212+ compounds in one place. Reference appendices now are split by topic on Chemistry, Materials Science, Math, Civil/Mechanical/Chemical Engineering, and Computer Science. • Streamlined first launch — dive straight in. • Accessibility throughout: Dynamic Type, VoiceOver, Bold Text, contrast. ### 2.1.0 — 2026-05-12 A major redesign: • Rebuilt navigation. All 18 disciplines on one screen as a compact icon grid. Each discipline opens to a visual button grid of its sections (Core Topics, Reference Appendices, Discoveries, Worked Examples, Canonical Experiments, Thought Experiments, Unsolved Problems, Methods) — no more endless scrolling through collapsible lists. • Bigger free tier. About a third of every discipline is free, forever — no account, no time limit, no favorites picker. The first entry of every section is always free, plus a personalized random selection so different installs see different free entries. • Chemistry: new Chemical Compounds button collects all 1,212+ compounds in one place. Reference appendices are split by topic on Chemistry, Materials Science, Math, Civil/Mechanical/Chemical Engineering, and Computer Science. • Streamlined first launch — dive straight in. • Accessibility throughout: Dynamic Type, VoiceOver, Bold Text, contrast. ### 2.0.0 — 2026-05-11 Increased free content from 25% of 3 disciplines to 33% of all disciplines! Major redesign of navigation system to make it much more visual and easy to see the available content without scrolling menus. Multiple bug fixes including unrendered LaTeX, cut-off content, and misplaced concepts. Added ability to zoom onto function plots for closer looks, and added new plots for material stress/strain/yield, statistical distributions, and many others! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-29.*