--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Periodic Table" developer_entity: "Royal Society of Chemistry" bundle_id: "org.rsc.periodictable" app_store_id: "1019468967" google_play_id: "com.zakirshikhli.mendeleyevcedveli" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-04-05" report_date: "2026-05-13" last_verified: "2026-05-13T13:26:01.450Z" report_version: "1.5" total_reviews: 191 overall_rating: 4.28 sentiment: "Mixed" sentiment_score: 65 confidence: "high" confidence_score: 0.65 top_praise_theme: "Educational content depth provides high value for chemistry students and curious learners alike" top_complaint_theme: "Network connectivity errors prevent content loading and break video playback functionality post-update" top_request_theme: "Search functionality expansion to include keyword and tag-based element discovery" review_sample_size: 149 total_review_count: 149 analyzed_review_count: 76 data_age_days: 3 momentum_velocity: "zombie" intelligence_version: 5 nemesis: "Astronomy Observer" competitor_count: 7 tags: ["education", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "students,", "teachers,", "individuals"] canonical_url: "https://marlvel.ai/intel-report/education/periodic-table-1" license: "CC-BY-NC 4.0" content_version: "v2" --- # Periodic Table App Audit ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 4.28 · Sentiment Mixed - **Recent focus**: Network connectivity errors prevent content loading and break video playback functionality post-update (top complaint) · Educational content depth provides high value for chemistry students and curious learners alike (top praise) · Search functionality expansion to include keyword and tag-based element discovery (top request) > **TL;DR:** Periodic Table is a education app by Royal Society of Chemistry, rated 4.28/5 by 191 users, with Mixed user sentiment (65/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Periodic Table shows Mixed sentiment (4.28/5 from 191 reviews) — users praise educational content depth provides high value for chemistry students and curious learners alike but report issues with network connectivity errors prevent content loading and break video playback functionality post-update. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.28/5 (191 reviews) | | **User Mood** | Mixed | | **Category** | Education | | **Developer** | Royal Society of Chemistry | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.65/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Royal Society of Chemistry - **Category:** Education - **Target Audience:** Students, teachers, and individuals interested in chemical sciences seeking a reference tool. - **Platforms:** iOS & Android - **Version Audited:** 1.5 - **Audit Date:** 2026-05-13 - **Signal Count:** 149 reviews analyzed - **Confidence:** High (0.65/1.0) - **App Store ID (iOS):** 1019468967 - **Bundle ID:** org.rsc.periodictable - **Google Play ID:** com.zakirshikhli.mendeleyevcedveli - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-05-13 ## Executive Snapshot **What it is:** Periodic Table is a reference app for chemistry students and teachers, providing element data, interactive sliders, and multimedia content on iOS and Android. **Why users hire it:** Users hire this app for reliable, ad-free chemical data that supports classroom study, but the current network-dependent design fails the core job of providing consistent offline access. ## App DNA (Features & Intent) - **[Differentiator] Interactive Temperature Slider:** Visualizes element state changes across temperature ranges in the app interface - **[Differentiator] Multimedia Element Profiles:** Integrates podcasts, videos, and real-life application photos for each element * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Offline Data Access:** Full element properties and search functionality available without internet connection * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} The app maintains a 4.28 rating across 191 reviews, positioning it as a niche, high-authority reference tool within the Education category. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all content - **Analysis:** The app operates as a free educational resource with no IAP or ad-supported monetization, serving as a distribution channel for the Royal Society of Chemistry. ## 🟡 User Sentiment (High Confidence: 76 of 149 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.28/5 - **Platform Split:** iOS 4.3/5 (191 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Educational content depth provides high value for chemistry students and curious learners alike** - **Intuitive visual design and dark mode interface reduce eye strain during extended study sessions** ### Top Complaints (Impact Areas) - **Network connectivity errors prevent content loading and break video playback functionality post-update** - **Application instability and frequent crashes occur during interaction with specific element data filters** ### Top Requests (What Users Want) - **Search functionality expansion to include keyword and tag-based element discovery** ## SWOT Analysis {#swot} **Core Strengths:** - High-authority chemical data [Royal Society of Chemistry brand] - Ad-free interface [long-term user retention] - Offline-first architecture [classroom adoption] **Critical Frictions:** - Network-dependent content loading [high-frequency complaint] - Instability during filter usage [149 total reviews] - Missing exit buttons on modern hardware [navigation friction] **Growth Levers:** - B2B education partnerships [untapped distribution] - Organic chemistry-specific view [user request] **Market Threats:** - 3D-model-first competitors [Zperiod] - AR-enabled reference apps [Astronomy Observer] ## Recent Changes (v4 → v5) {#recent-changes} The app's technical stability has declined due to new, specific crash patterns during filter usage and persistent multimedia playback failures. **Overall trend**: Declining **Compared at**: 2026-05-13 ### High-impact changes - **[Declined] New Filter Interaction Crashes** (sentiment) — Users report consistent application closure when interacting with temperature and discovery date filters, a new complaint category. - **[Declined] Multimedia Playback Failures** (sentiment) — Complaints regarding network connectivity now specifically cite video playback failures and external browser redirection issues. ### Medium-impact changes - **[Added] New Strategic Opportunities** (swot) — Added B2B education partnerships and organic chemistry-specific views to the SWOT analysis. - **[Shifted] Feature Gap Reclassification** (features) — 3D molecular models moved from a general gap to a primary competitive differentiator missing from the current build. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Periodic Table vs Astronomy Observer — Head to Head - **[Astronomy Observer](https://marlvel.ai/intel-report/reference/astronomy-observer)** by 雪平 王: This app competes for the same educational reference audience by providing high-fidelity visual data and scientific exploration tools that mirror the Periodic Table's utility. - **Key differences:** - Utilizes AR celestial mapping to provide an immersive, real-time learning experience for users. - Offers advanced ephemeris calculations that provide dynamic, time-sensitive data beyond static reference tables. - **Where Periodic Table wins:** - ✅ Leverages the Royal Society of Chemistry brand for high-authority, academic-grade chemical data. - ✅ Provides a more focused, specialized utility for chemistry students compared to general science reference apps. - **Where Astronomy Observer wins:** - ❌ Higher user engagement through interactive AR features that encourage frequent, repeated app usage. - ❌ Superior visual presentation of complex data sets which drives higher user satisfaction ratings. - **Verdict:** The target should integrate interactive 3D molecular models or AR elements to match the engagement levels of high-performing reference apps. ### Peers (What They Do Better) - **[Vernier Go Wireless](https://marlvel.ai/intel-report/education/vernier-go-wireless)** by Vernier Software & Technology: This app competes for the same educational user base by providing specialized tools for wireless scientific data visualization. - Focuses on seamless sensor discovery and management for wireless laboratory data collection environments. - Provides real-time data visualization tools that help students instantly interpret experimental results. - **[Vernier Spectral Analysis](https://marlvel.ai/intel-report/education/vernier-spectral-analysis)** by Vernier Software & Technology: This app occupies the same educational niche by providing guided, curriculum-focused tools for chemical and physical analysis. - Offers a highly guided interface specifically designed to support complex spectral data analysis tasks. - Provides deep curriculum support that aligns app functionality with standard science education learning objectives. - **[Vernier Graphical Analysis](https://marlvel.ai/intel-report/education/vernier-graphical-analysis)** by Vernier Software & Technology: This app targets the same student and teacher demographic by focusing on the practical application of scientific data in a classroom setting. - Supports manual data entry alongside automated sensor collection for versatile classroom lab reporting. - Includes robust data sharing capabilities that facilitate collaborative learning and group project analysis. - **[Vernier Graphical Analysis GW](https://marlvel.ai/intel-report/education/vernier-graphical-analysis-gw)** by Vernier Software & Technology: Both apps serve the STEM education market by providing specialized tools for scientific data collection and analysis. - Provides direct hardware integration for real-time sensor data collection during laboratory experiments. - Features flexible data collection modes that allow students to customize their scientific analysis workflows. ### New Kids on the Block (What's Innovative) - **[HeartVision](https://marlvel.ai/intel-report/medical/heartvision)** by Usama Nasir: While focused on medical education, this app competes for the same student attention span by offering high-quality 3D visual learning tools. - Utilizes high-fidelity 3D models and looped videos to explain complex biological structures visually. - **[Zperiod - Periodic Table](https://marlvel.ai/intel-report/education/com-mitre88-zperiod)** by Alejandro Hernandez Mitre: This newcomer directly challenges the target app by offering modern, interactive features like 3D models and equation balancing. - Includes a built-in chemical equation balancer and worksheet generator for active student problem solving. ## What's New - **Latest (v9.1.240, 1 months ago):** Minor content updates and bug fixes. ## App Momentum (Zombie) {#momentum} - Ships minor content updates. - Implemented user performance analytics. > **Cadence:** 2 total versions · 0 majors in last 6 months · 36 days since last update · 1718 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Periodic Table is an established education app that is completely free. With a 4.28/5 rating from 191 reviews, it shows polarized user reception. > **Bottom Line:** The app maintains authority through its academic backing but risks irrelevance due to core stability issues, so the team must prioritize fixing the network-dependent loading logic to defend its position against modern, interactive competitors. **Best for:** Students, teachers, and individuals interested in chemical sciences seeking a reference tool. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Rebuild content loading logic because network-dependent errors are the top complaint → restore offline utility — *Sentiment analysis identifies network connectivity as the primary driver of negative reviews.* _(trade-off: deprioritize Pause the organic chemistry view sprint — stability is the prerequisite for user retention.)_ - [ ] [PIVOT] [MEDIUM IMPACT] Audit filter interaction code because crashes occur during temperature and discovery date filtering → reduce crash rate — *Users report consistent application closure when interacting with specific element data filters.* _(trade-off: deprioritize Defer new multimedia content updates — fixing core stability is the priority for the current build.)_ ### Feature Gaps vs Competitors - 3D molecular models (available in Zperiod but absent here) - Chemical equation balancer (available in Zperiod but absent here) ### Outlook: Declining The educational reference market is shifting toward interactive, problem-solving tools that go beyond static tables. The app's current maintenance-mode posture leaves it exposed to modern rivals like Zperiod, so the team must restore basic stability before the user base migrates to more reliable, feature-rich alternatives. - 🔴 Persistent network connectivity errors in the latest release prevent content loading, which drives churn among students relying on offline access. - 🔴 Frequent crashes during filter interaction trigger negative sentiment, which compounds the rating drag already visible on the current build. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.28/5 | | Total Reviews | 191 | | Sentiment | Mixed (65/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Periodic Table** (this app) | 4.28/5 | Mixed | Royal Society of Chemistry | | [Zperiod - Periodic Table](https://marlvel.ai/intel-report/education/com-mitre88-zperiod) | N/A/5 | N/A | Alejandro Hernandez Mitre | | [Astronomy Observer](https://marlvel.ai/intel-report/reference/astronomy-observer) | 4.6/5 | Upset | 雪平 王 | | [Vernier Graphical Analysis](https://marlvel.ai/intel-report/education/vernier-graphical-analysis) | 2.1/5 | N/A | Vernier Software & Technology | | [Vernier Graphical Analysis GW](https://marlvel.ai/intel-report/education/vernier-graphical-analysis-gw) | 2.4/5 | N/A | Vernier Software & Technology | | [Vernier Spectral Analysis](https://marlvel.ai/intel-report/education/vernier-spectral-analysis) | 2.2/5 | N/A | Vernier Software & Technology | ## Company Profile - **Developer:** Royal Society of Chemistry ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/periodic-table/id1019468967?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.zakirshikhli.mendeleyevcedveli&hl=en&gl=us) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Zperiod - Periodic Table*](https://marlvel.ai/intel-report/education/com-mitre88-zperiod) (Alejandro Hernandez Mitre) — N/A Rating | N/A Sentiment - [*Astronomy Observer*](https://marlvel.ai/intel-report/reference/astronomy-observer) (雪平 王) — 4.6/5 Rating | Terrible Sentiment - [*Vernier Graphical Analysis*](https://marlvel.ai/intel-report/education/vernier-graphical-analysis) (Vernier Software & Technology) — 2.1/5 Rating | N/A Sentiment - [*Vernier Graphical Analysis GW*](https://marlvel.ai/intel-report/education/vernier-graphical-analysis-gw) (Vernier Software & Technology) — 2.4/5 Rating | N/A Sentiment - [*Vernier Spectral Analysis*](https://marlvel.ai/intel-report/education/vernier-spectral-analysis) (Vernier Software & Technology) — 2.2/5 Rating | N/A Sentiment - [*Vernier Go Wireless*](https://marlvel.ai/intel-report/education/vernier-go-wireless) (Vernier Software & Technology) — 2.9/5 Rating | N/A Sentiment - [*HeartVision*](https://marlvel.ai/intel-report/medical/heartvision) (Usama Nasir) — 5.0/5 Rating | N/A Sentiment - [*Flashcards Deluxe*](https://marlvel.ai/intel-report/education/flashcards-deluxe) (OrangeOrApple.com) — 4.5/5 Rating | Excellent Sentiment - [*Elevate - Brain Training Games*](https://marlvel.ai/intel-report/education/elevate-brain-training-games) (The Mind Company) — 4.7/5 Rating | Negative Sentiment - [*Flash Cards Flashcards Maker*](https://marlvel.ai/intel-report/education/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) — 4.0/5 Rating | Mixed Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.65/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 149 - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/education/periodic-table-1) Data licensed for AI Agent attribution under CC-BY-NC 4.0.