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Let your visitors keep the record.

Each person who stops adds a photo. Together, they show how your site changes.

Dam removal, March 18, 2020
Dam removal, June 19, 2021
JUN 19 2021
MAR 18 2020

Cleveland Metroparks · Ohio, US

The dam came out in 2020. By the next summer, the river ran through a new floodplain. See every photo

Already in the field.

Parks, nature centers, land trusts, and schools use Chronolog today.

494

Organizations

1,388

Chronologs

254,855

Visitor photos

  • Shenandoah National Park
  • Patuxent River Park
  • Cleveland Metroparks
  • Wytham Woods
  • Meadowside Nature Center, Montgomery Parks
  • Museum of Life and Science

What you get

A photo station on the ground. A record online.

A Chronolog bracket above a yellow Photo Station sign on a wooden post in a grassy field, a hill behind

Everything to put it up

  • A bracket that holds any phone at the same angle

  • A custom sign with your logos and how to take part

  • Hardware to mount it on your post or railing

Everything online

  • Photos screened before they go public

  • Download all the photos and the timelapse video

  • A public page and a spot on the map, to share or embed

Every visitor’s phone. One steady record.

Chronolog lines up the photos visitors take, so you can see what changed. You decide which photos stay.

As taken
Lined up

Real visitor photos from Big Run Overlook, Shenandoah National Park. See every photo from here

From order to first photo in about a month.

On site it’s just a bracket and a sign, with no power, Wi-Fi, or camera to look after. Your part is an afternoon with a drill.

Someone screwing a Chronolog bracket onto a wooden railing with a drill
  1. Order

    Tell us how many Chronologs you need. We reply by email and set up your dashboard.

  2. Approve your sign

    Add your logos in the dashboard. We send a proof and print once you approve it.

  3. Install

    Materials arrive in three to four weeks. Mount the bracket on a post or railing.

  4. Take the first photo

    Your first photo turns the Chronolog on and publishes its page.

Simple pricing.

$200–$400

Per Chronolog, per year

Everything included: the bracket, your custom sign, hardware, and the online service.

$750per year

$250 per Chronolog

You save $450 with volume pricing

Request 3 Chronologs
  • Billing starts with your first photo, not the day you order

  • Billed yearly, or prepay up to five years

  • Card, ACH, check, P-Card, purchase order, or wire

  • Free shipping in the U.S. ($100 elsewhere)

Frequently asked questions

Does a Chronolog need power, Wi-Fi, or an app?

No. On site, there’s nothing to plug in: just a bracket and a sign. Visitors send photos from their own phones, by email or by scanning the code on the sign, with no app or account.

Who installs it?

Your team does, and it’s quick. We ship the bracket, sign, and mounting hardware. Set a 4×4 wooden post or use an existing railing or structure (metal U-channel posts don’t work well). See the installation tips.

How are photos moderated?

Every photo is screened automatically for inappropriate content before it’s published. Organizers can also hide photos with faces automatically, and hide any photo by hand from the dashboard.

What can we do with the photos?

Anything lawful: social posts, newsletters, grant reports, press, exhibits, and lessons. Download single photos or the full timelapse video from your dashboard.

Can we use grant funding?

Yes. Chronolog is often bought with restoration, education, and community stewardship grants. Prepaying up to five years fits grants that must be spent within a set period, and our support docs have tips on finding funding.

How many Chronologs should we start with?

One Chronolog is a great way to follow a single project. Networks of five or more show the full range of your work, draw more visitors in, and let you compare different parts of your land. Many organizations start small and add more later, which lowers the price per Chronolog.

Can a Chronolog be private?

Partly. Leave out its coordinates and it won’t appear on the public map. A fully private Chronolog, where only certain people can add or view photos, isn’t available yet.

What happens to our photos if we stop?

You keep access to every photo collected while your Chronolog was active. An ended Chronolog stops taking new photos. Its public page stays up as long as your organization has at least one active Chronolog.

What visitors ask

See the visitor FAQ

Start your record.

Start your order online, or talk to us first if you have questions about your site.

Get a Chronolog
A visitor sets their phone in a Chronolog bracket on a wooden post in a park in autumn