Crosivia App

Crosivia centers its interface around a large circular incubation dial — a cream and beige wheel that fills with progress as the cycle advances, sitting against a dark brown textured background that feels deliberately earthy and calm. Setting up a new cycle takes seconds, and from that point the app tracks the day count, surfaces the next egg-turning reminder, and displays the predicted hatch date with a note that timing varies by breed and conditions. Milestone markers at Day 14 (growth check), Day 18 (lockdown), and Day 21 (expected hatch) give the full arc a clear shape at a glance.

Logging and the journal

The Journal tab handles humidity and temperature entries, displaying each reading with its date, time, percentage, and degree value to one decimal place. A line graph plots humidity over time against target ranges of 45–55% RH and 37.2–37.8°C, with temperature overlaid on the same chart. The built-in camera lets you photograph candling sessions and hatching chicks, with every image kept in a private on-device gallery. Pairing those photos with written notes builds what the app describes as a complete record of each clutch.

The wiki and what it covers

An in-app guide section titled How incubation works walks through the biology stage by stage — from a faint embryonic disc at Day 1 to a chick that fills the shell by Day 21. A visual timeline of egg icons maps the progression at Days 1, 7, 14, 18, and 21. Temperature guides, humidity references, and development timelines are available offline, which the app positions as useful for questions that come up outside of business hours. The interface supports dark mode throughout and includes a four-step guided tour on first launch, with a skip option for users who prefer to explore on their own.

One honest note on accessibility

The core circular dial interaction relies on swipe gestures and color-coded data points without documented text alternatives for screen readers. Charts and graphs currently lack apparent audio descriptions, and the chromatic aberration decorative effect used in the branding screens may cause eye strain for some users. Users who rely on VoiceOver or similar assistive tools should be aware that the interface, as documented, would require meaningful modification to meet WCAG 2.1 AA standards.

Crosivia's restraint is its clearest strength — it does not try to be a social platform or a subscription service. It is a private logbook that stays on your phone and gets out of the way.