A private pregnancy tracker — no account, no cloud

No account. No cloud. No data broker. No ad network. Bloom is a private pregnancy tracker built for the people who actually read the privacy policy. Your records stay on your phone.

Privacy as a foundation, not a feature

Most apps treat privacy as a settings toggle bolted on at the end. Bloom is built the other way around: there is no account to create, no server your data is uploaded to, and no third party in the loop. The default — the only mode — is local-first.

That means the symptoms you log, the kicks you count, the contractions you time, the journal you write, and the moods you track all live in the app on your iPhone. They are not in a Bloom database, because there isn't one holding your records.

The App Store privacy label for Bloom reads "Data Not Linked to You — App Functionality" — Apple's highest-privacy label category, and one shared by almost no other pregnancy tracker.

Why this matters for pregnancy data

Pregnancy data is among the most sensitive information you will ever create. The industry's track record is not reassuring.

In 2021 the U.S. Federal Trade Commission settled with Flo Health, the most-installed period and pregnancy app in the world at the time, over allegations that it shared users' health data with Facebook and Google despite promising privacy. Five years later, the defaults in most pregnancy apps are still the same: sign up, cloud sync, opt out of advertising, hope for the best.

In 2022 the Wall Street Journal reported that location data from period and pregnancy apps had been used in at least one criminal case against a person who had experienced a miscarriage. Brookings has flagged the data pipeline between reproductive health apps and data brokers as a structural vulnerability.

If you live in a state with restrictive reproductive laws — or anywhere you'd rather not have your pregnancy, your location, or your loss be for sale — the app you pick matters. Not in a hand-wavy "data is the new oil" way. In a "this data has been purchased by law enforcement" way. The ACOG patient privacy resources are a good starting point for understanding what pregnancy data is and how it can be used.

What a private pregnancy tracker should actually mean

Five things. A pregnancy tracker that calls itself private should do all of them.

1. No account required. You can use the entire app without ever providing an email.
2. Data stays on your device by default. There is no account system that links your records to a server identity.
3. No third-party SDKs that exfiltrate usage data. No Facebook, no Google, no Adjust, no Kochava.
4. Opt-in for any cloud sync or AI features. AI insights, if they exist, run on anonymous aggregate metrics only.
5. A clear, plain-language privacy policy that confirms all four.

If an app fails any of these, it is not private. It is opt-out private, which is the same thing as not private.

How Bloom stacks up against the major pregnancy trackers

A side-by-side view of the most-installed US App Store pregnancy trackers as of June 2026.

| App | Account required? | Data on device by default? | Free tier ads? | Bereavement mode? | AI features | |---|---|---|---|---|---| | Bloom | No | Yes | No | Yes | Yes (anonymous aggregate) | | Ovia | Yes | No (cloud) | No | No | Yes | | Pregnancy+ (Philips) | Yes | No (cloud) | No | No | No | | Glow Nurture | Yes | No (cloud) | Yes | No | No | | Flo | Yes | No (cloud) | Yes | No | Yes | | BabyCenter | Yes | No (cloud) | Yes | No | No | | What to Expect | Yes | No (cloud) | Yes | No | No | | The Bump | Yes | No (cloud) | Yes | No | No |

Bloom is the only one of the eight with no account, on-device data, no ads, and a real bereavement mode. If you want a private pregnancy tracker that doesn't compromise on the rest of the feature set, the comparison is short.

What you actually get with Bloom

Privacy is the requirement, not the whole product. Here is what else is in the app.

Core tracking

• Week-by-week fetal development with a 3D baby model that grows with you
• Kick counter with goal prompts starting at 28 weeks, following the Count the Kicks public-health campaign
• Contraction timer with automatic 5-1-1 labor detection
• 60-symptom checker
• Mood and journal logs
• Blood pressure, weight, and glucose logging through Apple Health

Tools that respect the moment

• A bereavement mode that pauses weekly baby content and notifications the moment a loss is logged. No "your baby is the size of a mango" pings to someone who has just lost a pregnancy.
• A high-risk pregnancy mode that adapts the app to the realities of gestational hypertension, GD, or other complications.
• A birth plan builder that exports to PDF for your provider.
• A hospital bag checklist timed to your due date.

Wherever you are

• A full Apple Watch app for kick counting and contraction timing from the wrist
• Home screen widgets for the current week, kick goal, and due date
• iPad optimization (most pregnancy trackers are phone-only)

How to switch from a data-harvesting app to Bloom

Most people accumulate 30+ weeks of data in their pregnancy app: weekly photos, kick logs, contraction sessions, mood, weight, symptoms. Switching usually feels like losing the pregnancy. It does not have to.

Practical steps.

1. Export what you can. Most apps have a settings → export data option. If yours does not, screenshot the screens that matter: your due date, your kick log, your symptom history, your birth plan draft.
2. Delete the old app's account, not just the app. Go into the app or its website, find the account deletion flow, and confirm. This is the only way to get your data off their servers (or at least on the deletion queue).
3. Set Bloom up clean. Bloom does not need your data from the old app. It starts at the right week from your due date, and the cleanest experience is usually the best one.
4. Revoke permissions on the old app. iOS Settings → Privacy & Security → check what the old app still has access to. Remove anything you do not need.

A note on Apple Watch and HealthKit

Bloom reads and writes weight, blood pressure, and glucose through Apple Health. That data stays between your iPhone and the Health app on your devices. Bloom does not receive a copy.

The Apple Watch app for kick counting and contraction timing runs locally. The watch does the timing, the iPhone logs it, and nothing leaves your wrist without you choosing to share it.

The bottom line

For users in 2026 who want a real, full-featured pregnancy tracker that does not harvest their data, Bloom is the only major choice that meets the bar. The closest competitors require accounts and sync to the cloud, and the bereavement mode is genuinely unique to Bloom.

The app is free to download, has a 7-day free trial of Bloom Premium ($19.99/month), and works fully without an account. Whether you are early enough to start clean or already 30 weeks in, the switch is a quiet one.

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Last reviewed: June 2026. Reviewed against the live App Store listing and the company privacy policy. This page is informational, not medical advice. Always defer to your care team on clinical questions.