--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Sales Tax & Discounts" developer_entity: "Rome Rock LLC" bundle_id: "com.romerock.apps.utilities.salestaxdiscountcalculator.TaxDiscountCalculator" app_store_id: "1384309113" category: "Finance" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2021-04-21" report_date: "2026-10-01" last_verified: "2026-10-01T00:00:00.000Z" report_version: "1.2.4" total_reviews: 294 overall_rating: 4.7 sentiment: "Thrilled" sentiment_score: 85 confidence: "medium" confidence_score: 0.45 top_praise_theme: "Discount calculation features provide clear visibility into final pricing for online store merchandise management" review_sample_size: 2 total_review_count: 2 analyzed_review_count: 2 data_age_days: 44 momentum_velocity: "zombie" intelligence_version: 2 tags: ["finance", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "international", "travelers", "retail"] canonical_url: "https://marlvel.ai/apps/sales-tax-discounts" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (finance). Information is aggregated from public sources for informational purposes only. This is not financial or investment advice. Always do your own research. --- # Sales Tax & Discounts Intelligence Report ## TL;DR {#tldr} - **Category**: Finance · Free - **Signal**: Rating 4.67 · Sentiment Thrilled - **Recent focus**: Discount calculation features provide clear visibility into final pricing for online store merchandise management (top praise) > **TL;DR:** Sales Tax & Discounts is a finance app by Rome Rock LLC, rated 4.67/5 by 294 users, with Thrilled user sentiment (85/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Sales Tax & Discounts maintains Thrilled user sentiment (4.67/5 from 294 reviews), with users consistently praising discount calculation features provide clear visibility into final pricing for online store merchandise management. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.67/5 (294 reviews) | | **User Mood** | Thrilled | | **Category** | Finance | | **Developer** | Rome Rock LLC | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.45/1.0) | | **Data Age** | 44d | ## Metadata & Market Performance - **Publisher:** Rome Rock LLC - **Category:** Finance - **Target Audience:** International travelers and retail managers requiring offline tax and discount calculations. - **Platforms:** iOS - **Version Reviewed:** 1.2.4 - **Report Date:** 2026-10-01 - **Signal Count:** 2 reviews analyzed - **Confidence:** Medium (0.45/1.0) - **App Store ID (iOS):** 1384309113 - **Bundle ID:** com.romerock.apps.utilities.salestaxdiscountcalculator.TaxDiscountCalculator - **Data Window:** Analysis based on signals collected up to 2026-10-01 ## Executive Snapshot **What it is:** Sales Tax & Discounts is a utility for calculating final retail prices with local taxes and multiple discounts across global jurisdictions on iOS. **Why users hire it:** The app removes the friction of manual tax calculations for international travelers and retail managers who require offline access to tax rates. ## App DNA (Features & Intent) - **[Differentiator] Global Tax Library:** Database of tax rates categorized by country, province, state, and city for international use. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Formula Calculator:** Parses arithmetic strings like (5+5)/10*2 directly in the amount field. - **[Standard] Offline Functionality:** Performs all tax and discount calculations without an active internet connection. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} Sales Tax & Discounts maintains a 4.67 rating across 294 reviews, reflecting long-term stability in the finance utility space. The lack of updates since 2021 signals a static market position that relies on legacy utility rather than active competitive growth. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app operates as a free utility with no visible subscription or IAP gates, likely serving as a brand-building tool for the developer's broader portfolio. ## 🟢 User Sentiment (Medium Confidence: 2 of 2 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.67/5 - **Platform Split:** iOS 4.7/5 (294 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Discount calculation features provide clear visibility into final pricing for online store merchandise management** ## SWOT Analysis {#swot} **Core Strengths:** - Global tax library functions as a barrier to entry for localized competitors - Offline-first architecture ensures consistent utility in low-connectivity environments **Growth Levers:** - Localized pricing in high-ARPU markets could monetize the existing global tax database ## What's New - **Latest (v1.2.4, 5 years ago):** General bug fixes and stability improvements. ## App Momentum (Zombie) {#momentum} - Dormant development for five years. - No major releases since 2021. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1989 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Sales Tax & Discounts is a finance app that is completely free. It holds a 4.67/5 rating from 294 reviews. > **Bottom Line:** Sales Tax & Discounts remains a functional tool for offline price verification, but the five-year development silence leaves it vulnerable to modern retail apps that integrate real-time tax APIs. **Best for:** International travelers and retail managers requiring offline tax and discount calculations. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship cloud-sync because the lack of cross-device data prevents professional retail management usage → unlock retention ### Outlook: Stable The finance utility market is shifting toward real-time, cloud-connected tax services that integrate directly with retail POS systems. Sales Tax & Discounts remains stable as a legacy offline tool, but its lack of feature evolution suggests it will continue to lose relevance to modern, integrated alternatives. - ⚪ The five-year development gap indicates the app is in maintenance mode, which limits its ability to compete with modern, API-driven retail tools. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.67/5 | | Total Reviews | 294 | | Sentiment | Thrilled (85/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Sales Tax & Discounts** (this app) | 4.67/5 | Thrilled | Rome Rock LLC | | [Banksola: Budget Planner](https://marlvel.ai/apps/banksola-budget-planner) | 4.6/5 | Mixed | Quickdollarapp, Inc | | [DEGIRO: Investing & Trading](https://marlvel.ai/apps/degiro-investing-trading) | 4.1/5 | Mixed | DEGIRO - Online Trading App | | [Hourly: Freelance Tracker](https://marlvel.ai/apps/hourly-freelance-tracker) | N/A/5 | N/A | Albert Lewinski | | [SureShotFX - Pip Calculator](https://marlvel.ai/apps/sureshotfx-pip-calculator) | 4.0/5 | Excited | SureShotFX | | [Tikker - Live Income Tracker](https://marlvel.ai/apps/tikker-live-income-tracker) | 5.0/5 | N/A | Mis Asja OU | ## Company Profile - **Developer:** Rome Rock LLC - **Website:** [https://apps.romerock.com](https://apps.romerock.com) - **Social:** [Instagram](https://www.instagram.com/romerock_apps) · [Facebook](https://www.facebook.com/RomeRock-App-Studio-337180269970605/?ref=page_internal) · [X/Twitter](https://twitter.com/romerock_apps) · [YouTube](https://www.youtube.com/channel/UCcSLNuTYC7qJhOKQ4CpseRA) · [LinkedIn](https://www.linkedin.com/company/rome-rock) ## Data Sources & Links - **App Store ID:** 1384309113 - **Dev Site:** [Official Website](https://apps.romerock.com) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Banksola: Budget Planner*](https://marlvel.ai/apps/banksola-budget-planner) (Quickdollarapp, Inc) · 4.6/5 Rating - [*DEGIRO: Investing & Trading*](https://marlvel.ai/apps/degiro-investing-trading) (DEGIRO - Online Trading App) · 4.1/5 Rating - [*Hourly: Freelance Tracker*](https://marlvel.ai/apps/hourly-freelance-tracker) (Albert Lewinski) · N/A Rating - [*SureShotFX - Pip Calculator*](https://marlvel.ai/apps/sureshotfx-pip-calculator) (SureShotFX) · 4.0/5 Rating | Positive Sentiment - [*Tikker - Live Income Tracker*](https://marlvel.ai/apps/tikker-live-income-tracker) (Mis Asja OU) · 5.0/5 Rating - [*TradeLog - Trading Journal*](https://marlvel.ai/apps/tradelog-trading-journal) (Rikuto Takeuchi) · N/A Rating - [*코인원 - 가상자산 거래소(비트코인, 이더리움, 테더)*](https://marlvel.ai/apps/coinone-co-kr-official) (Coinone) · 3.1/5 Rating - [*다트맨 - 전자공시 푸시알림*](https://marlvel.ai/apps/com-coreasset-stockhunter) (ORBIS Investment Advisors Co., Ltd.) · 2.1/5 Rating - [*디지로카(롯데카드)*](https://marlvel.ai/apps/com-lcacapp) (lottecard) · 2.5/5 Rating - [*บเรนนี่ เงินสด*](https://marlvel.ai/apps/com-finance-rennycorpoth) (RENNY CORPORATION COMPANY LIMITED) · N/A Rating ## 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 into synthesised themes (no verbatim quotes). 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:** 0.45/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 2 - **Data Sources:** user reviews, developer website, 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:** 44 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/sales-tax-discounts) Data licensed for AI Agent attribution under CC-BY-NC 4.0.