Terms of Use

Using Candelo

Candelo is provided by Aplogon, an independent app developer based in Sri Lanka. It measures light with your phone's light sensor or camera, shows it in lux and foot-candles, records light logs, and with Candelo Pro estimates plant light and photo exposure. By using the app you agree to these terms. You must be at least 16 years old to use Candelo.

Readings are estimates

A phone's light sensor is made to set screen brightness, not to measure light. Sensors differ from phone to phone, read light from some directions better than others, and some stop at a few thousand lux; the camera estimate depends on your camera and on the paper or surface you meter. Plant light (PPFD and daily light integral) and exposure values are worked out from these readings with general conversion factors, so they are estimates too, and the plant targets are typical ranges from horticultural guides, not advice for a particular plant. Calibrating against a meter you trust brings readings closer, but Candelo is not a certified or calibrated measuring instrument. Do not rely on it for safety, health, workplace, building, legal or other compliance requirements, or where an inaccurate reading could cause harm or loss; use a calibrated instrument for those.

Free version and Candelo Pro

• Candelo is free to use with ads (see the Privacy Policy). The free version includes the light meter with the light sensor or the camera, min, max and average, the live chart, calibration, the light-level guide, and up to three saved logs. You can watch a short ad to use the Plant and Photo tools for 24 hours.
• Candelo Pro removes ads and adds the Plant tool (PPFD and daily light estimates, plant targets and My Plants), the Photo tool (exposure from incident or spot readings), unlimited logs, CSV export and the Light home-screen widget.
• Candelo Pro is available as a one-time lifetime purchase or as a monthly subscription through Google Play. Prices are shown in the app before you buy. Payment is charged to your Google Play account.
• The monthly subscription renews automatically at the end of each month until you cancel. You can cancel at any time; Pro stays active until the end of the period you have paid for. If Google Play offers a free trial for it, the app shows the trial length and price before you start, and the monthly price is charged when the trial ends unless you cancel in Google Play before then.
• If a subscription price changes, Google Play tells you in advance. For some increases you must accept the new price, or the subscription ends at the end of the current period.
• Manage or cancel your subscription in Google Play (profile icon › Payments & subscriptions › Subscriptions) or from Settings › Manage Subscription in Candelo. Uninstalling the app does not cancel it.
• The lifetime purchase is a one-time payment, not a subscription, and never renews. It unlocks Pro on any device signed in to the same Google account (use Settings › Restore Purchases), for as long as Candelo is offered on Google Play.
• If a subscription ends or a purchase is refunded, Pro features switch off. Your logs and plants stay on your device, including logs beyond the free limit; to record more than three, delete some or get Candelo Pro again.
• Refunds are handled under Google Play's refund policies.

Your data

Your readings, logs and plants stay on your device (see the Privacy Policy). We never have a copy, so we cannot recover lost logs for you; Candelo Pro includes CSV export so you can keep your own copy. Deleting logs or plants, or uninstalling Candelo, cannot be undone.

The camera

When you choose a camera feature, Candelo shows the camera's picture on your screen and reads the exposure it chooses. Don't point the camera at the sun or other very bright light for long, and take care of your surroundings while metering.

Liability

Candelo is provided “as is”. We work hard to make readings and estimates useful, but we can't guarantee that any reading, estimate, suggested exposure or plant verdict is accurate on every phone or in every light. To the extent the law allows, Aplogon is not liable for decisions made on Candelo's readings, for harm to plants, photographs or property, for lost data, or for losses arising from use of the app. Nothing in these terms limits rights you have under consumer law.

Changes and contact

We may update these terms; the effective date above will change when we do. These terms are governed by the laws of Sri Lanka. Contact: apexfordinith@gmail.com.