Privacy policy

Who runs this

Thermly is a crowdsourced indoor-temperature map. It is operated by the person behind [email protected]. Questions about privacy go there.

You can browse without an account

The map, nearby places, temperature filters, and the sensor shop are public. Signing in is only required to log a reading, save a comfort range on your account, and keep a rank.

What we collect

If you create an account, we store:

• Name, email, and a hashed password (email sign-up), or the name, email, and profile image your Google or X account shares when you continue with those services.
• If you ask to reset an email-account password, a one-time link emailed to that address. The link expires in one hour. We only send it when you ask, and only if that account has a Thermly password. Google-only and X-only accounts are not emailed.
• Session information so you stay signed in.
• Your comfort range and °F / °C preference, if you save them.
• A public invite code, who invited you, people you add as friends, and how many people joined through your code (Ambassador credit).
• An optional status you set (happy, traveling, warm, and similar), messages you send to friends, notes you post on the friends feed, and whether you want a popup when a friend logs a reading.
• If you turn on friend-reading alerts, a push subscription for this device (a browser endpoint, not your phone number).
• If you send a suggestion or bug report, the message, optional reply email, and (if you were signed in) a link to your account so we can follow up.

If you log a temperature, we store:

• The business (name, category, address, and that place’s map pin).
• The temperature, how it felt, how you took it (wall thermostat, handheld thermometer, or no instrument), and any note you type.
• An optional photo of the thermostat or pocket thermometer you used. Frame the display — don’t photograph other people if you can help it.
• If you flag a photo, we store that you flagged that reading so a reviewer can look.
• If you apply to review photos, we store your application text and the operator’s decision (including a written reason if they decline).
• When you logged it, tied to your account so your rank can update.

We do not save a trail of your live GPS. Location from your phone is used on the device to center the map and to nudge you if you’ve been at a place. The pin we store with a reading is the business, not a breadcrumb of you.

What stays on your phone

Your last map position, unit and comfort-range shortcuts, whether you’ve seen the tutorial or invite, and “not now” on a nudge are stored in your browser. Sign-out does not always clear those. Deleting your account from Thermly does.

What other people see

Community readings appear on the public map: the place, the temperature, how it felt, thermostat vs handheld vs felt, optional note, an optional photo of the display (unless a reviewer hides it), and how many readings that contributor has (their rank). We do not put your name or email on the map.

If you’re signed in, a place sheet may also show a Your Circle number: a weighted average of recent readings from you and accepted friends only. Instrument readings and photos of a display count more than felt-only logs. That line is for you, not the public map, and it does not list friend names.

If you share your profile link or QR code, that page shows your display name, invite code, reading count, places, how long you’ve been a member, your rank among people who have logged a temp, Ambassador if you’ve invited someone, your friends’ names and codes, your optional status, and recent readings. Email stays off that page.

Friends you accept can also see your circle feed posts, chat with you in the app, and — only if they opted in — receive a notification when you log a temperature. Chat and feed notes are not on the public map.

Who we share with

We do not sell your information. We do not run third-party ads or analytics pixels on Thermly.

We do send some requests to other services so the app can work:

• OpenStreetMap — map tiles, and nearby / search lookups. If the map is centered on you, that approximate position is sent so we can find businesses around you. See OSM’s privacy policy.
• Google or X — only if you choose those sign-in buttons. They authenticate you; we receive the account details they return.
• Amazon — only if you tap a Paid link in the sensor shop. Those links use an Associates tag so the operator may earn a commission. Amazon then follows its own policy.

The operator account ([email protected]) can open an admin desk with totals (users, places, readings) and recent community logs. That operator also reviews photo-reviewer applications and can hide flagged photos. People they approve as photo reviewers can see flagged photos and hide or keep them. Running the service also means that operator can access the app database, including account emails, to fix problems and judge whether the map is working.

How long we keep it

Account, reading, referral, friend, chat, feed, alert-subscription, photo-flag, and reviewer-application data stay until you delete your account. After that we remove your reports, profile, friends, messages, feed notes, referrals, push subscriptions, feedback you submitted while signed in, photo flags, reviewer applications, and sign-in record. Seeded “field notes” that did not come from a signed-in person stay on the map. Hidden photos stay off the public map; the file is dropped when the reading or account is deleted.

Your choices

• Turn friend-reading alerts off from You — Alerts.
• Clear or change your status anytime on You.
• See your own readings and preferences on You.
• Edit or delete a reading you posted, for 7 days. After that it stays on the map as part of the community average.
• Flag a display photo that isn’t a thermostat or thermometer.
• Sign out from You.
• Delete your account from You. That wipes your readings from the public map, your rank, and your sign-in. It cannot be undone.

Children

Thermly is not directed at children under 13, and we do not knowingly collect their information. If you believe a child under 13 has an account, email [email protected] and we will delete it.

Changes

If this policy changes, we will update this page and the effective date. We do not email a notice (we do not run a product newsletter).