Independent iOS Studio

Apps Built
to Last

We make focused, beautifully crafted apps for iOS — designed to stay out of your way and work reliably every day.

Our Apps
Horizon Market Compass

HorizonMarketCompass v2.6.3 Live (iOS + Mac)

Intelligent Portfolio & Dividend Tracker

Track stocks across 8 markets — US, Japan, India, China, Hong Kong, Korea, Singapore, and Japanese mutual funds. Guru Portfolios, MACD, Compounder Score, Sell tracking, dividend safety scores, valuation models, and Apple Watch companion.

Free · Premium $39.99/yr
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Compounder HQ

Compounder HQ v1.3.1 Live

Dividend, Income & Quality-Growth Tracker for US-listed Securities

Multi-account first-class (Taxable / IRA / Roth / 401(k) / HSA + 19 non-US wrappers). Section 19(a)-1 covered-call ETF tax intelligence (JEPI, JEPQ, SPYI, QQQI…). Compounder Score 0-10 per holding with Margin of Safety + Quality-Growth screener. Forward after-tax income projection across 9 residencies. Specific-lot accounting (FIFO / LIFO / min-tax / max-tax / average).

14-day free trial · then Pro $39.99/yr
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DhyanaMala

DhyanaMala v1.3 Live

Hindu Mantra Chanting & Meditation

210 curated mantras across 17 sacred groups — Navagraha, Gayatri, Nakshatra, Jyotirlinga, and more — plus Sacred Texts: the Hanuman Chalisa and Vishnu & Lalita Sahasranamam in Devanagari, Telugu & English. Digital mala counter, meditation timer, and session tracking.

Free
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BharatPropVault

BharatPropVault v1.2 Live (iOS + Mac)

Indian Property & Rental Management

Manage rental properties, tenants, leases, and taxes — built for Indian landlords. AES-256 encrypted document vault, OCR scanning, capital gains calculator, Section 24 & TDS tracking, and rental listings to NoBroker, 99acres & more.

Free · Premium $19.99/yr
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About Us

Tools That Respect Your Time

At MARS Studio, we build apps for people who value clarity over clutter. Each app is a focused tool — no accounts, no data collection. Your data stays on your device.

🔒

Privacy First

No accounts, no tracking, no analytics. Your financial and property data never leaves your device. iCloud sync is optional and user-controlled.

💎

Honest Pricing

No ads, no hidden costs. Most apps are completely free. Where a premium tier exists, there's a free tier or a free trial so you can evaluate before you pay.

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Focused Design

Each app does one thing exceptionally well. Clean interfaces that stay out of your way and work reliably every day.

"The best tool should think like a senior executive — not a spreadsheet."

Founded by a technology executive with over 30 years of experience leading global teams, MARS Studio builds apps with a simple conviction: intelligence should be built into the product, not bolted on as a subscription. Using AI-assisted development and a Calm UI philosophy, our apps are your silent, intelligent co-pilots.

Built in Tokyo, Japan