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Daniel Steel

For apple device users, including convertible vehicle owners, real estate investors, and professionals seeking AI-enhanced productivity tools.

9apps0.5(1) Multi-theme

Snapshot

Who is Daniel Steel?

Developing specialized utility and productivity tools for the Apple ecosystem. Focused on integrating niche data into daily workflows.

Target audience

Apple device usersIncluding convertible vehicle ownersReal estate investors

Active nemesis

Angel App Publishing

Other rivals

Portfolio

Free 6
9
apps
Health & Fitness2
Business1
Finance1
Games1

Last updated

Drop The Top: Live Weather

v1.4

1.3y ago

Intense

Publisher DNA

What defines Daniel Steel?

Publisher DNA

Primary focus

Utility and productivity tools for Apple platforms

Scale

indie

Target audience

Apple device users, including convertible vehicle owners, real estate investors, and professionals seeking AI-enhanced productivity tools.

Signature Patterns

  • •Heavy integration with Apple-specific hardware features like CarPlay and WatchOS.
  • •Utilization of AI engines for content generation and data processing.
  • •Diverse category distribution with no single dominant vertical.
  • •Mixed monetization strategy including paid upfront, free, and subscription models.
Intense

Portfolio momentum

Released 21 updates across the portfolio in the last 6 months, indicating a high-frequency development cycle across all active titles.

Last release 32d agoActive apps 7

Portfolio

What does Daniel Steel ship?

Tightly focused on 3 markets (France, Germany, United States).

Based on 1 of 9 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States1 / 1

Europe (2)

  • France1 / 1
  • Germany1 / 1

Core markets (1/1 apps)

FranceGermanyUnited States

Rivals

Who does Daniel Steel compete with?

The rivals identified

Nemeses(2)

Angel App Publishing

known forAI Listing Assistant

1 app0.0Shopping

Both applications target Vinted sellers by automating listing creation through AI image analysis to reduce manual data entry.

Calculated Industries

known forReal Estate Master IIIx

1 app4.9Finance

Both applications target real estate professionals and investors, creating direct competition for users seeking mobile financial calculation tools for property analysis.

Contenders(11)

Andrea Rethy

known forProperty Value Calculator

1 app5.0Finance

Both apps target real estate investors with financial projection tools, creating direct competition for users seeking property acquisition analysis.

APPLOC

known forInvesting Calculator

1 app5.0Finance

Both apps target individual investors needing financial modeling tools, creating direct competition for users seeking quick investment performance projections.

Bruinsquare

known forReal Estate Calculator

1 app2.8Finance

Both apps target real estate investors by providing financial calculation tools for property performance and investment viability.

Capital Architects

known forThe IRR App

1 app5.0Finance

Both applications target real estate investors requiring Internal Rate of Return calculations, creating direct functional overlap in the financial utility category.

Easy Pro Forma

known forEasy Pro Forma: ROI Calculator

1 app5.0Finance

Both apps target real estate investors seeking property performance metrics, creating direct competition for users evaluating investment returns and cash flow.

Fortnoff Financial

known forDealCheck: Analyze Real Estate

1 app4.8Finance

Both apps target real estate investors seeking property performance metrics, creating direct competition for users evaluating rental properties and investment returns.

Future Reference

known forFuture Reference

1 app4.0Shopping

Both apps target resale sellers by automating listing creation via AI image analysis. Future Reference expands this to cross-platform distribution, while PreLoved AI focuses on Vinted-specific metadata generation.

Phan Nhat Đang

known forInvestment Calculator - Calc

1 app4.7Finance

Both apps target individual investors seeking financial modeling tools, creating direct competition for users evaluating investment performance.

Real Deal IQ

known forReal Deal IQ

1 app5.0Finance

Both apps target real estate investors seeking property performance analysis, with Real Deal IQ expanding into project management workflows while IRR Calculator focuses on core financial metrics.

SGOC

known forQJO Investment Tool

1 app5.0Finance

Both applications target real estate investors by providing tools for property financial analysis and cash flow projections.

Wealth 212

known forReal Estate Investor Toolkit

1 app4.2Finance

Both applications target real estate investors with deal analysis tools, creating direct competition for users seeking property performance metrics.

Same space(35)

abdulkadir tulun

known forSeller Growth Tool

1 app5.0Shopping

This tool provides analytics to help PreLoved AI users improve their marketplace profile performance.

Acloset

known forAcloset - AI Fashion Assistant

1 app4.4Shopping

Acloset manages the digital wardrobe that PreLoved AI users often clear out, providing a complementary utility for fashion organization.

AgentM

known forVintSnap: Sell on Vinted Fast

1 appShopping

Users report: VintSnap is a direct competitor that automates Vinted listing creation using real eBay sold data for pricing.

Applorium

known forFinancial Calculator: Percent

1 app4.7Finance

This app captures the broader retail investor segment by bundling 40+ financial tools, contrasting with the specialized focus of IRR Calculator.

Ayoub Barkia

known forVintapp: Annonce Vinted IA

1 app0.0Shopping

Vintapp is a direct competitor that automates the listing process specifically for Vinted sellers.

BallparkDeal

known forRental Calculator BallparkDeal

1 app4.5Finance

This app serves the same real estate investor audience but focuses on rapid, on-the-go deal underwriting without account requirements.

brian drye

known forRental ROI Plus

1 app5.0Finance

This app serves the same rental property analysis market but focuses on interactive visualization of investment performance.

Can Erten

known forMortgage Loan Calculator

1 app0.0Finance

This app provides a similar mortgage-focused utility but differentiates through a privacy-first, one-time purchase model.

Cappro

known forCapPro - Cash Flow Calc & CRM

1 app5.0Finance

This app bundles financial calculation with CRM features, targeting real estate agents who need to present data to clients.

Coding Solved

known forListing Description Generator

1 app4.3Shopping

This tool serves real estate agents, providing a similar AI-based description generation utility but for property listings instead of fashion.

Depop

known forDepop - Buy & Sell Clothes

1 app4.8Shopping

Depop competes for the same fashion-conscious sellers as PreLoved AI, focusing on social discovery rather than just utility.

DesignAxe

known forFlipScan: Resale Scanner AI

1 app0.0Shopping

FlipScan provides resale valuation data that helps PreLoved AI users assess the profitability of items before listing them.

eBay

known foreBay online shopping & selling

1 app4.6Shopping

eBay provides the logistics infrastructure that PreLoved AI users rely on for cross-border trade and high-value item sales.

Emmanuel Adooli

known forRental:LandlordPropertyManager

1 app5.0Finance

This app expands from simple calculation into full-scale property management, serving the same user base as they grow their portfolios.

Gibbon Holt

known forResalePal AI

1 app5.0Shopping

ResalePal provides valuation data that helps PreLoved AI users decide which items are worth the effort of listing.

Hakan Uyanik

known forInterest Rate Calculate

1 app0.0Finance

This app provides a simplified, ad-free interest calculation utility for personal finance planning.

Hoftware

known forCloset Resale App: AI Listings

1 app5.0Shopping

This app is a direct functional alternative to PreLoved AI, automating the listing process for multiple resale platforms.

iMLS

known forProperty Fixer - Real Estate Investment Calculator

1 app3.7Finance

This app targets the same real estate investment niche but focuses on the specific workflow of property flipping.

Matthew Lorentz

known forRentFlow: Property Calculator

1 app5.0Finance

This app provides an offline-first rental analysis tool that avoids the account-gating found in other investment platforms.

momox SE

known formomox: sell books & fashion

1 app4.5Shopping

momox provides a simplified resale path for books and clothing that competes with the manual listing workflow of PreLoved AI.

Nirav Zalavadiya

known forFinancial Calculator EMI, SIP

1 app4.6Finance

This tool targets the same personal finance audience but expands into banking and stock market calculations beyond real estate.

Poshmark

known forPoshmark: Shop & Sell Fashion

1 app4.8Shopping

Poshmark acts as the primary marketplace where PreLoved AI users list their inventory, though recent UI regressions create friction for sellers.

Reesales

known forPicList: AI Listing Generator

1 app0.0Shopping

PicList is a direct competitor that automates eBay listing creation, focusing on speed for high-volume sellers.

sabri El Makhoukhi

known forReselo – Resale Value Scanner

1 app0.0Shopping

Reselo acts as a direct competitor by providing both valuation and automated listing generation for multiple platforms.

Sovereign Realty Advisors

known forCommercial Real Estate Advisor

1 app0.0Finance

This app targets the same commercial real estate audience but incorporates conversational AI for deal analysis.

Valeriy Loveyko

known forSnapFlip: Thrift & Resell AI

1 app4.9Shopping

SnapFlip provides market data that helps PreLoved AI users identify profitable inventory before they begin the listing process.

Van Hoa Nguyen

known forEMI Loan & Mortgage Calculator

1 app4.5Finance

This app provides a visual, document-focused alternative for loan-specific calculations, serving users who need repayment schedules alongside investment metrics.

Vendit

known forVendit - eBay Listing Tool

1 appShopping

Vendit is a direct competitor that automates eBay listing creation, removing the manual labor of data entry.

Vijay Pasam

known forRental Income Calculator

1 app5.0Finance

This app provides a similar rental analysis utility but differentiates through an offline-first architecture for field assessments.

Vinted

known forVinted: Pre-loved marketplace

1 app4.5Shopping

Vinted serves as a core destination for PreLoved AI users, offering a zero-fee model that drives high inventory volume.

WIL7

known forListed AI - Listing Generator

1 app3.4Shopping

Listed AI is a direct competitor that generates descriptions for multiple resale platforms simultaneously.

WILLIAM ISAAC LEWIS

known forQuickList: AI Listing Tool

1 app5.0Shopping

QuickList is a direct competitor that automates the listing process for eBay, supporting both auctions and fixed-price sales.

Xiaohan Chen

known forRental Cashflow ROI Calculator

1 app5.0Finance

This app provides a similar rental analysis toolkit but includes portfolio mapping to increase user switching costs.

ZANIDY PTY

known forProperty Calculator Australia

1 app5.0Finance

This app targets the same investor audience but uses state-specific financial logic to provide localized accuracy for the Australian market.

智萍 闫

known forFinancial Calculator - NPV,IRR

1 app2.9Finance

This app acts as a direct functional substitute for TVM and cash flow modeling, targeting the academic and professional finance segment.

New entrants(2)

Joseph Ernst

known forFlipwise: Resale Value Scanner

1 app0.0Shopping

Flipwise provides valuation data that helps PreLoved AI users decide whether to list an item based on potential profit.

Really Nice

known forVinted Finder: Style Scanner

1 app5.0Shopping

Vinted Finder helps users find specific items on Vinted, serving as a discovery tool for PreLoved AI users.

The Analyst's Read

The bottom line on Daniel Steel

Bottom line

The publisher is a highly active indie developer focused on filling specific utility gaps within the Apple ecosystem. Their ability to maintain a high release velocity across disparate categories suggests a modular development approach, though long-term success will depend on scaling user acquisition beyond niche utility segments.

Frequently asked questions

How many apps does Daniel Steel publish?
Daniel Steel has 9 apps tracked by Marlvel, primarily in the Health & Fitness category.
What kind of apps does Daniel Steel make?
Daniel Steel's portfolio is concentrated in Health & Fitness and Business, with an average rating of 0.5/5 across rated apps.
What is Daniel Steel's top app?
By review volume across the portfolio, Drop The Top: Live Weather is Daniel Steel's best-known app tracked by Marlvel.
In how many countries are Daniel Steel's apps available?
Marlvel has tracked Daniel Steel's apps across 3 countries.

What fed this analysis

Apps analyzed:
8
With full intel:
0
With overview:
8
Website scraped:
yes
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Daniel Steel, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Daniel Steel intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/daniel-steel

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Data licensed under CC-BY-NC 4.0