Dev tools · alternatives · 2026
24 alternatives to RefriPro
Offline PT charts,error codes,service reports for HVAC techs
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Offline HVAC calculator: R-454B PT, superheat, duct, load
Jul 2026 · apps.apple.com · its alternatives →
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superlog▲497Hey HN, we’re Nico and Arseniy, co-founders of Superlog (https://superlog.sh). We're building a self-installing, self healing observability tool meant not to be opened. It has a wizard that daily sets up proper logging and an agent that investigates errors and opens PRs. Super short demo: https://www.youtube.com/watch?v=xFhU9Mk247M. In our earlier startups, we tried Sentry, Datadog, Grafana, Dash0, and nothing was good enough. Proper telemetry and alerting still requires a ton of manual setup. We struggled with adding good logs, so debugging was tough, especially as…
Jun 2026 · superlog.sh · its alternatives →
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Free HVAC calculators and practical reference tools
Aug 2026 · hvactoolshub.com · its alternatives →
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2022 · heatpumpshooray.com · its alternatives →
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client-side HVAC & thermodynamic calculation suite
Aug 2026 · hvaclogic.org · its alternatives →
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28 code-compliant calculators. 100% offline. No account.
Mar 2026 · bytecovesoftware.com · its alternatives →
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TradeVan▲6Offline-first HVAC software for small service teams
Jul 2026 · tradevan.app · its alternatives →
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15+ working calculators for finance & health (more weekly)
2025 · supercalc.dev · its alternatives →
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The only 100% offline risk calculator for traders. One pay
Jun 2026 · linkedin.com · its alternatives →
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I built this after getting frustrated with existing converters that are either ad-heavy or lack precision controls. Designed specifically for professionals who need accuracy in their calculations. Key technical decisions: - Single HTML file for fast loading and offline capability - Vanilla JavaScript (no frameworks) for maximum performance - PWA implementation for mobile/desktop use - Precision controls up to 15 decimal places - Specialized units for cooking, scientific, and historical conversions Built it in 24 hours using Claude Code and deployed on Netlify. The challenge was…
2025 · precisionconvert.io · its alternatives →
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Your one stop shop for smart HVAC software solutions
2022 · yourvirtualhvac.com · its alternatives →
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CalcuGo▲3Offline calculator, unit converter, and date tools
Jul 2026 · tenshio-apps.vercel.app · its alternatives →
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Look up any appliance error code by brand, offline
Jul 2026 · play.google.com · its alternatives →
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200+ free calculators for finance, health & math
Jun 2026 · calculator-pro.org · its alternatives →
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50 free calculators for home energy costs & savings
Jul 2026 · howmuchwatts.com · its alternatives →
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B2B marketplace for HVAC electronic control boards
Jul 2026 · climaparts.app · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →