InnGrid

InnGrid is an occupancy and booking calendar for people who run a small place — guesthouses, B&Bs, holiday apartments, cottages, agritourism, glamping and hostels. The calendar itself is free forever, with unlimited rooms and unlimited bookings: it is not a trial and there is no per-room pricing. There is no InnGrid account to create and no server of the developer's in the middle — your bookings live on your device and work with no signal at all.

The main screen is a rooms-by-nights board you can zoom from a week to a month, with booking bars colored by status and today always in view. Overlapping confirmed stays are refused outright, so a double booking cannot be saved by accident, and back-to-back stays (one guest leaving as another arrives) are handled correctly. A booking takes three taps and can cover several rooms at once; same-day day stays are supported as well, for breakfast guests, day rooms or dog day care.

Free features include a guest directory with search and stay history, monthly and yearly revenue and occupancy statistics, a daily housekeeping list you can send to your cleaner as plain text, ticking rooms off as they are cleaned, meals per booking with a daily kitchen count, arrival and unpaid-advance reminders, a Today home-screen widget, a full data backup, CSV export and import, and .ics calendar export. The interface is available in 13 languages.

Premium is optional and adds four things: one-way iCal import from Booking.com, Airbnb, Google Calendar or any calendar address; private iCloud sync across iPhone, iPad and Mac; several buildings on one board; and calendar sharing with a co-host or partner, who installs the free app and pays nothing. Inviting staff is a separate, deliberately narrower link: a cleaner or cook sees only the day plan — rooms to turn over and meals — never your bookings, guest names or prices, and ticks rooms off as they are done.

What InnGrid deliberately does not do: it is not a two-way channel manager, so it does not push your availability back to the portals; there is no online booking engine, no guest messaging, no invoicing and no API. It runs only on Apple devices — there is no Android app and no web version. If you need a channel manager or a browser-based system, other tools are the better fit.