Step 1
Note your cycle dates
Write down your last period and recent positive tests from Premom.
Premom vs Her Good Days
Her Good Days vs Premom
Premom reads your ovulation test strips with your camera, and that's its main draw. Her Good Days is free and follows you through pregnancy and beyond.
- Checked October 30, 2026
- Every Premom fact linked to its source
Comparing more apps? See period tracker apps, compared.
| At a glance | Premom | Her Good Days |
|---|---|---|
| Price | Free download; Premium in-app purchases $12.99 to $37.99 (App Store) | Free. No paid tier |
| Ovulation tests | Scans LH test strips with a digital reader | Log the result and the time |
| Privacy | FTC case in 2023 over sharing health data (FTC) | Private mode: no account, nothing leaves the phone |
| After you conceive | Pregnancy mode | Week and due date, appointments, kick counter, contraction timer, after birth, menopause |
| Verdict | Fits if you test LH every day and want the strips read for you | The pick if you want a free app that keeps going after the test turns positive |
Where Her Good Days is different
Beyond the two-week wait
Premom's strength is the test strip reader: you photograph an LH test and it reads the line for you, beside basal temperature charts and a PCOS tool (App Store).
Her Good Days logs your test result and the time, shows estimated fertile days labeled Not birth control, and keeps going: pregnancy, after the birth, and the years when cycles change.
Feature by feature
Premom vs Her Good Days, side by side
| Premom | Her Good Days | |
|---|---|---|
| Price | Free download; Premium in-app purchases from $12.99 to $37.99 (App Store) | Free. No paid tier |
| Periods | A period calendar | Period start and flow; your next period shown as a range |
| Fertile days | Ovulation predictions from LH tests and temperature | Estimated fertile days, labeled "Not birth control"; never in teen mode |
| Ovulation tests | Reads LH test strips from a photo; basal temperature charts | Ovulation test results with the time, in the Cycle mini app |
| Perimenopause and menopause | Not in the listing | Hot flashes per week and the hours they cluster in, sleep next to night sweats, cycle gaps over 60 days |
| Pregnancy | Pregnancy mode | Week and due date, appointments with your questions, kick counter, contraction timer, a baby card each week |
| Report for your doctor | Not stated in the listing | A PDF for the dates you pick: periods, cycle lengths, each symptom with how often and how strong, sleep, medications, your notes |
| Teens | Rated 13+ | From 13. Teen mode has no shop, no weight-loss goals and no fertile days |
| Use without an account | Not stated in the listing | Private mode: no account, and nothing leaves the phone |
| Ads and tracking | Label: no tracking section; contains advertising. Policy: with consent, may share health information with outside companies (Premom) | No outside analytics code |
| Community | A community, and Predad, an app for partners | No forums or chat |
| Platforms | iPhone, Android | iPhone and Android |
How we source this. Premom cells come from the US App Store listing, the privacy policy (updated October 20, 2026), Google Play and the FTC, checked October 30, 2026. Premom is a trademark of its owner; Her Good Days isn't affiliated with it.
Pricing
Premom pricing vs Her Good Days
US App Store in-app purchases on October 30, 2026; the listing doesn't say which price is which plan.
Her Good Days
Free, every feature
| Every feature | $0 |
| Paid tier | None |
| Trial | Nothing to cancel |
Premom
Free, then Premium
| Free | Test reading, charts, calendar |
| Premium | $12.99 to $37.99 in the US App Store |
| What Premium adds | Advanced cycle reports, personal content, webinars |
Privacy
Premom and the FTC
On May 17, 2023 the FTC charged that Premom's developer, Easy Healthcare, shared users' sensitive health data with AppsFlyer and Google and with two China-based analytics firms, and failed to tell users (FTC).
Under the proposed order Easy Healthcare pays a $100,000 civil penalty and is barred from sharing health data for advertising; it also agreed to pay $100,000 in total to Connecticut, the District of Columbia and Oregon (same release).
Its current policy says that, with your consent, it may share health information you enter with outside companies for personalization and offers (Premom privacy policy).
Which one to pick
| Pick Her Good Days if | Premom fits if |
|---|---|
| You test LH daily and want the line read for you. |
How to switch from Premom
Step 2
Start Her Good Days
Pick your stage, turn on the Cycle and fertility mini app, and log your tests there.
Step 3
Delete what you leave
Cancel Premium where you bought it, and delete your Premom account if you're done.
Other comparisons
Questions
Is Premom safe?
In 2023 the FTC charged Premom's developer with sharing health data with advertisers and China-based firms; the proposed order bars sharing health data for ads. Its current policy still allows sharing with your consent.
Is Premom free?
The download is free. Premium costs $12.99 to $37.99 in the US App Store, depending on the plan.
Can Her Good Days read ovulation tests?
No. You log the result and the time yourself, and fertile days show as estimates, labeled Not birth control.