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Finance & FinTech

1. Trust The Calcs

Construction calculators that show their math. These masonry and concrete block calculators trace every number to a named source and show it right next to the result, so the contractor pricing a job and the engineer checking the takeoff see the same evidence.

Hardware Finance & FinTech Productivity

2. Deutsches Rechner

Deutsches Rechner is a free German-language collection of browser-based calculators for personal finance and everyday mathematics. It covers salary and net pay, taxes, pensions, benefits, loans and housing. No account is required. Calculations run in the browser, and calculator pages explain their assumptions, formulas, dates and sources. Guides and tables provide additional context.

Finance & FinTech

3. Gold Price Per Gram

Free, no-signup tools to see what your gold is worth. Live gold price per gram for 10K–24K, a melt value calculator, a multi-item scrap gold calculator, a buyer payout slider, a hallmark guide and price history with CSV export.

Productivity Finance & FinTech

4. CoinSyncer - Free crypto portfolio tracker

Track your crypto balances across multiple exchanges in one place. CoinSyncer syncs your holdings automatically and keeps you updated with ease.

Blockchain & Crypto Finance & FinTech SaaS

5. IB Offer

IB Offer is an AI interview coach for investment banking — answer real technical questions, get graded, and fix the exact gap before your next rep. AI-graded investment banking interview prep. Practice technicals — accounting, valuation, DCF, LBO, M&A, brainteasers — get scored answers with specific feedback and model answers to compare against. Ask IB coaching for follow-ups, 35 sourced firm guides, and free tools like mental math and a DCF checker. Free to start, no card needed.

Education Tech Artificial Intelligence Finance & FinTech

6. Flan

Visual financial timelines for couple and young professionals: model cash flow, life events, and shared goals.

Finance & FinTech Productivity

7. Bullynx

Bullynx is a chart screenshot analyzer for retail investors and active traders. Upload a chart screenshot and get the trend, support and resistance levels, and bullish and bearish scenarios with an invalidation level. Educational only.

Artificial Intelligence Finance & FinTech

8. AgentLink

AgentLink is an AI controller for CPA and fractional CFO firms. Connect one client's books and five minutes later a controller is running on them, under your firm's name. No behaviour change, no cadence change.

Finance & FinTech Artificial Intelligence SaaS

9. Holipay

Holipay is a free flight metasearch that helps you compare flight options, find cheap fares, explore destinations, and earn real cashback from eligible bookings.

Finance & FinTech

10. Billino

EU-hosted invoicing for freelancers and small businesses, with a free plan and a paid Plus tier for power users.

Finance & FinTech

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