Sunpatch: Sun Hours & Shade

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About this app

Every seed packet and plant label is written in hours of direct sun. Almost nobody knows what their own garden actually gets — so the tomatoes go in the shady corner and never ripen.

Sunpatch answers the question with a number.

MEASURE YOUR OWN SKYLINE
Other sun apps show you where the sun is. That is the easy half. The half that decides whether anything grows is what stands in the way: the fence, the garage, next door's lime tree. Point your phone at the top of each one, or enter its height and distance, and Sunpatch builds the skyline around that exact spot.

REAL HOURS, ANY DAY OF THE YEAR
The app walks the day minute by minute and counts only the light that actually reaches you. You get the total, the first and last sun, the longest unbroken stretch — and the same figures for every day of the year, so you can see the bed that bakes in July sit in shadow from October.

FULL SUN OR PART SHADE, SETTLED
Sunpatch classes each spot the way plant labels do: full sun, part sun, part shade, full shade. Then it matches 135 plants — vegetables, herbs, fruit, flowers, shrubs, houseplants and lawn — against the light you actually have, and tells you plainly what will not work.

WHAT IF YOU CUT THAT TREE BACK
Tap any obstruction and see exactly how many hours removing it would give you. Sometimes it is two hours. Often it is nothing at all — which is worth knowing before anyone reaches for a saw.

DECIDUOUS TREES ARE HANDLED PROPERLY
A bare lime tree in February is not the same obstruction as the same tree in July. Sunpatch drops it to a bare canopy outside the leaf season, and counts dappled light at what it is worth instead of rounding it to nothing.

THE SUN COACH
Ask what to plant, why something is struggling, or how to win back an hour. It answers from your measured numbers, not from generic advice. Two answers are free; after that it is part of Pro.

WORKS WITHOUT AN ACCOUNT AND WITHOUT A SIGNAL
Every calculation runs on your phone using the NOAA solar algorithm. There is nothing to sign up for, nothing is uploaded, and it all works in aeroplane mode. Your location is used to place a spot and never leaves the device.

SUNPATCH PRO
The free app measures one spot completely. Pro adds unlimited spots, the Sun Coach, what-if on every obstruction and the full year on any date.

Sunpatch Pro is available as a monthly or yearly subscription, or as a one-time Lifetime purchase. Subscriptions are billed through Google Play and renew automatically until cancelled; you can manage or cancel them at any time in the Play Store.

Terms of Use: https://szymdzie.github.io/sunpatch/terms.html
Privacy Policy: https://szymdzie.github.io/sunpatch/privacy.html

What’s new

First Android build of Sunpatch.