When will my dog be in heat again?

Lunella predicts it from your entries, explains every stage and reminds you in time. For owners and breeders.

Free download. 7 days with every feature, then €9.99 a year. English, German, French, Spanish.

Why Lunella

Half the price, everything included

€9.99 a year with breeder features included. Comparable apps cost €18 to €23 a year, breeder apps $50 to $100.

Based on veterinary literature

For every stage: what happens in the body, how you recognise it, what to do and when to see the vet. After the MSD Veterinary Manual, Cornell and dvm360.

Your data stays with you

No account, no server, no ads, no tracking. Everything lives on your device, backup as a file.

What Lunella looks like

What Lunella does

Understand the stage: proestrus, standing heat, diestrus, anestrus. Ring and bar show where in the cycle your dog is.
Predict: next heat, ovulation and fertile days, end of the heat, watch windows for pyometra and false pregnancy, a good window for spaying.
Warnings for bleeding that lasts too long, intervals too short or too long and an overdue heat.
Observe: one tap for “Heat starts today”, “Standing today”, “Heat is over”. Daily observation with bleeding, discharge, vulva, behaviour and notes.
For breeders: progesterone values with interpretation, mating, vet-confirmed ovulation, due date, pregnancy milestones, report for the practice.
Reminders before the next heat, daily during the heat and four weeks after for a check.
Share profile card: dog’s name, stage and next heat as an image, for example via WhatsApp to the trainer or boarding kennel.
Several dogs, setup password, backup as a file.

Frequently asked questions

What does Lunella cost?

The download is free. For 7 days you can use every feature. After that Lunella continues with the yearly subscription for €9.99 a year (local prices may differ). There is no monthly plan and no hidden tier: breeder features are included.

What happens after the 7 days without a subscription?

Everything you recorded stays visible, including the prediction and the stage information. New observations and breeder mode need the subscription.

How do I cancel?

Any time in the subscription settings of your Apple or Google account. The subscription then ends at the end of the paid year.

Where is my data?

Only on your device. Lunella has no server and no account. You can save a backup as a file and move it to a new device.

How accurate is the prediction?

The first time, Lunella uses reference values by the size of your dog. With every heat you record, the prediction improves because it is then based on your own dog's intervals. Dogs are not clockwork, so Lunella shows a range rather than a single day.

What does Lunella offer breeders?

Progesterone values in ng/ml or nmol/l with interpretation, ovulation set automatically from the values, mating and insemination, due date from ovulation, pregnancy milestones with reminders and a report as a text file for the vet.

Which devices?

iPhone and iPad from iOS 15, Android from version 8. In English, German, French and Spanish.

Guide

Short and factual: answers to the questions everyone with an intact female dog asks.

How long is a dog in heat?About three weeks, with a wide range. When the first heat comes, how often dogs come into heat and when to see the vet.The four stages of a dog's heat cycle: proestrus, estrus, diestrus, anestrusWhat happens in the body in each stage, how you recognise it and what you should do as an owner.When is a dog fertile? Ovulation and the best mating daysThe fertile days are in standing heat, not at the start of the bleeding. Why days 10 to 13 are only a rule of thumb and what progesterone tells you.False pregnancy in dogs: how to recognise it and what to doNesting, milk and cuddly toys as puppies: why a false pregnancy can develop after every heat, how you recognise it and what helps.Pyometra in dogs: the warning signs every owner must knowOne in four to five intact female dogs develops pyometra during her life, usually two to eight weeks after a heat. The signs, the cause and why it is an emergency.When to spay? The right time in a dog's cycleNot during the heat, not during a false pregnancy: why anestrus is the best time for spaying and what speaks for and against spaying before the first heat.

Lunella keeps track for you

Enter when the heat starts and Lunella shows the phase, predicts the next heat and reminds you in time. Free download, 7 days with everything, then €9.99 a year.

Support

Questions or problems? E-mail lunella@ihanwel.net.

Price, subscription and terms

Lunella is free and can be used without restriction for 7 days. After that, new observations and breeder mode require the yearly subscription (€9.99 per year, local prices may differ), paid through the App Store or Google Play. It renews automatically for another year unless cancelled at least 24 hours before it ends; cancel any time in your Apple or Google account. Everything recorded stays visible without a subscription. The Apple standard EULA or the Google Play Terms of Service apply. Lunella works with typical values from veterinary literature; all predictions are estimates, not a diagnosis, and do not replace veterinary advice.

Privacy

All data stays on the device. The full privacy notice: Deutsch · English · Français · Español

Imprint

Hanno Welsch (ihanwel), Mörikestraße 19, 66459 Kirkel, Deutschland · Telefon +49 6849 224464 · ds@ihanwel.net