An app studio by Cogito Consultancy
Apps for the rhythms that shape us.
The moon and the tides. The night sky our ancestors read. The calendars they kept, and the quiet page where you keep your own days. We make calm, beautiful apps about time, nature and memory.
The collection
Four apps, one sky.
Each one does one thing well, looks after your privacy, and is a pleasure to open every day.
Moon Tides
Tide times at a glance for any beach or harbour, with a live tide chart, wind, waves and water temperature hour by hour. Plus a 30-day tide table, the best fishing times and golden hour.
- Live tide chart
- Solunar fishing times
- Home & Lock Screen widgets
Kindiary
A diary should feel like coming home. A quiet, encrypted place to write and remember, with no ads and no account. One morning it hands you back a line you wrote a year ago.
- Encrypted & on-device
- 21 hand-drawn themes
- Sunday Noticing
Ancient Sky
A star map of tonight and of the past. Watch the midsummer sun rise between the stones of Stonehenge in 2500 BC, or see the sky over Giza when Thuban was the Pole Star.
- 18 ancient sites
- Famous nights in history
- Point at the sky
Ancient Calendars
Today, in nine calendar traditions: Maya, Egyptian, Ethiopian, Hebrew, Celtic, Islamic, Chinese, Christian and Hindu. Each with the day's meaning, its seasons and the festivals ahead.
- 9 traditions
- Moon phases
- Festival reminders
How we build
Quiet software, made with care.
Private by default
Your data lives on your device. No account to make, no one looking over your shoulder.
Real science
Tide harmonics, star positions and calendar maths, computed properly rather than guessed.
Crafted detail
Hand-tuned themes, typography and motion. Apps you actually enjoy opening.
Calm, not noisy
No dark patterns or endless feeds. Open it, get what you came for, get on with your day.
About us
A small studio with its head in the sky.
Cogito Studios is the app-making arm of Cogito Consultancy. We design, build and ship mobile apps end to end, from the first idea and the maths underneath it to the artwork, the store listing and the launch.
We're drawn to old questions: where the moon is, when the tide turns, what the sky looked like to the people who built Stonehenge, how our ancestors counted their days. We turn them into tools that fit in your pocket.
Say hello
Have an idea, or a question about one of our apps?
Whether it's feedback, press, or a project you'd like Cogito Consultancy to help with, we'd love to hear from you.
ancient-sky [at] cogito-consultancy [dot] com