Dev tools · alternatives · 2026
24 alternatives to OnSun: Solar PV Forecaster & Planner
Plan Your Solar. Maximize Savings.
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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Use more of your own solar generation!
Sep 2026 · onsun.app · its alternatives →
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Hi HN, Shawn here. My rooftop system lost about half a year of production and nobody told me. Not the installer, not the monitoring app, not the utility. I found out from an electric bill that made no sense, then spent weeks digging through the monitoring portal by hand. SunRanker is what I wished existed that day. Connect a system once (Enphase OAuth, or a SolarEdge site ID plus API key) and it reads production daily, shows it in plain language, and emails you when something actually changes. Three alerts only. The connection broke, the monitoring went quiet, or output has been well below…
Aug 2026 · sunranker.com · its alternatives →
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3D movements telling you the time to the next sunrise
2024 · apps.apple.com · its alternatives →
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Ultimate tool for managing and optimizing your solar energy
2023 · apps.apple.com · its alternatives →
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SunQuest▲33Know where the sun will be — and if solar is worth it.
2025 · sunquest.app · its alternatives →
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HelioPeak▲78Solar monitoring for pvoutput on every Apple device.
May 2026 · heliopeak.app · its alternatives →
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The first weather forecast app for outdoor photographers
2019 · blackbird.one · its alternatives →
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Take photos, answer questions, and discover energy savings
2024 · sunnysaves.co · its alternatives →
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I kept trying to explain how important outdoor light is and how most people aren’t getting enough. Eventually I figured that showing is more effective than telling. So we built a free app that uses your Apple Watch or iPhone to automatically track your light exposure throughout the day. It tells you if you’re getting enough, shows you how consistent you are, and rewards habits that support hormone balance. It's in beta on TestFlight, let me know what you think!
2025 · lumehealth.io · its alternatives →
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I shared this a little while ago. Since then, I've implemented some feature requests and added a small weather widget. There are also static pages for major cities if you prefer not to use the location-based version. e.g., https://sunrisewhen.com/new-york I know most phones and browsers already provide this kind of info, but it's a fun little project I enjoy keeping alive. cheers
2024 · sunrisewhen.com · its alternatives →
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SunSpotter – Your Ultimate Sun Tracking Tool!
2025 · apps.apple.com · 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 →