Solar Spotter
Off-grid panel angle & battery
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
STOP GUESSING. START CHARGING.
Know your rig: Energy History, live battery Bluetooth (BETA), alternate charging credited honestly. One-time purchase, no tracking.
Solar Spotter is the solar advisor for off-grid 4WDs, caravans, motorhomes, vanlifers, overlanders and boondockers — anyone who relies on portable solar. Live local conditions, precision panel alignment, and a direct read on your battery — we tell you when to charge, how to align, and what your battery's actually doing, so you get the most charge out of every hour of sun. Your setup works hard so you can relax and enjoy the outdoors.
NEW IN 1.8.3 — THE NUMBERS GET REAL
Pair your battery's Bluetooth monitor and Solar Spotter records what your setup actually harvested and actually drew — day by day, credited to the right source, honest about what it measured. Free for everyone: the WattsUp morning briefing. Pro adds one-tap backup of your whole setup.
FREE — NO ACCOUNT, NO SIGNAL NEEDED:
- Read today's solar day at a glance — current irradiance, efficiency against the physical max for your spot, cloud cover, and temperature.
- Set up for the hours you want to charge — intuitive solar compass with azimuth, altitude, and optimal tilt, plus highlighted bands for charging now, +3hr, and +6hr.
- Plan around peak solar — full-day sun path chart from sunrise to sunset with peak hours marked.
- Catch what's coming — 3-hour weather snapshot.
- WattsUp morning briefing — the day's solar outlook before sunrise.
- Bush Bash offline mode — works anywhere. No signal? No worries.
UNLOCK PRO
One price. No subscription. No monthly fees. Buy once. Yours to use forever.
CHARGE SMARTER. NOT LONGER.
— KNOW WHAT'S ACTUALLY HAPPENING —
• Energy History — what your rig actually did, day by day, and where the charge came from.
• Battery Bluetooth (BETA) reads your battery's built-in monitor directly over Bluetooth. See the charge coming in and what your fridge or other gear is drawing out. Built for batteries that use a JBD or JK monitor (BMS) initially, but we are expanding our battery library.
• Alternate Charging — tell the app about your DC-DC or generator and their work is credited to them, not your panels. Optional Drive Detection knows when charge comes in from a drive — and never reads your location.
• Panels Packed or Out — one tap, and every number follows reality.
• Daily Battery Tracker projects your sundown % and runs a sunrise check from your current charge and system draw.
• Estimated Output runs your real panel + battery specs against live conditions: wattage now, recharge rate, and projected daily harvest. Updates every 15 minutes.
— CHARGE IN THE RIGHT HOURS —
• Best Charging Window (BCW) rolls through the day on live weather. Set a duration, pick a custom window, or let the app find the optimal one.
• 3-day solar outlook — the next few days' charging at your current spot.
• Hyperlocal 15-minute weather — YOUR exact spot, not a regional average.
— SET UP TO THE DEGREE —
• A real game changer for portable blanket and panel users. AR Alignment shows the exact direction and tilt with audio + haptic feedback to help lock it in. Re-position with confidence using the overlay for a quick visual guide, or the on-panel mode for precise alignment. Or set up once for the BCW and enjoy the day.
— PLAN THE WHOLE TRIP INCLUDING SOLAR —
• Trip Planner: multi-stop solar outlooks — charging conditions where you're headed, not just where you are.
• Your own trip archives and campsite notes — future you will thank you.
• Your Gear — save your panels, batteries, camp gear and named rigs. Different setup for a different trip? Switch rigs in one tap.
• Back Up Your Setup — one tap, everything you built, yours to keep.
Designed for the real world. Works in the outback, at the beach, in the mountains — anywhere you set up camp. Every calculation runs on-device. No reliance on cloud services or mobile coverage.
Our Honesty — live-weather, physics-based, real-conditions-aware outputs for your exact spot, right now. Plain talk on what we can and can't tell you.
Your Privacy — no ads, no tracking, no analytics, no accounts. Your spot stays yours.
Ratings & Reviews
Your rig's real numbers have arrived.
ENERGY HISTORY (Pro) — After a few days out, see what your setup actually did: day by day, what you really harvested and what you really drew, each day tagged with the gear that was out. Pairs with your battery's Bluetooth monitor (BETA). Averages are honest from day one — and a day the app only partly watched says so, right on its row.
CHARGE, CREDITED HONESTLY (Pro) — Tell the app about your DC-DC or generator and their work stops being credited to your panels. Optional drive detection tells alternator charge from solar — it reads whether you were driving, never where.
PANELS PACKED OR OUT (Pro) — One tap says the panels are packed, and every number follows reality instead of assuming your blanket's in the sun. Deploying again is one tap too — packing down is part of using a portable panel, and now the app knows it.
YOUR GEAR (Pro) — Panels, batteries and camp gear on one page. Tick what's out, name a combination as a rig — the tourer, the camper trailer — and switch the lot in one tap. Fridge out for a service? Switch any part off, and back on later with nothing to re-enter. Pick your battery's brand and model and see it live on the battery sheet while connected.
WATTSUP BRIEFING (Free + Pro) — An optional heads-up before sunrise with the day's solar outlook — Pro gets the exact best window. Scheduled on your phone from your own forecast, only while you're using the app, so it can't nag.
TRIP PLANNER (Pro) — Every stop now shows its best charging window in that stop's own timezone, your per-stop notes grow an end-of-trip review, and today at camp reads live after dark. Each stop now says whether your battery should cover the night, from your rig's own measured use — and every trip can name the rig it's planned on.
BACK UP YOUR SETUP (Pro) — One tap copies your whole setup and history into a bundle you keep. We store nothing about you, so the backup is yours.
Plus: every permission on one setup screen (Bluetooth included), km or miles asked up front, and layouts checked down to the smallest zoomed screens. As always — no accounts, no tracking, no analytics. We collect nothing about you.
The developer, Richard de Belin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Richard de Belin
- Size
- 31.7 MB
- Category
- Weather
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Solar Spotter Pro $14.99
- Copyright
- © 2026 Solar Spotter
