Comparison

Her Flo vs Vitals Sync

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Her Flo

Track your menstrual cycle, log period dates, flow, symptoms, and notes. This app helps you monitor your health and provide accurate information to your doctor, especially useful for teens and pre-teens experiencing irregular cycles.

Highlights
  • Log period dates and duration
  • Record flow amount
  • Track symptoms and notes
  • Review past logged data
  • Monitor menstrual health
  • Suitable for teens and pre-teens
Features
Read full description

Remember your doctor visits where you were asked when your last period was, and how long it was? And you just couldn’t remember so you had to end up giving the doctor a random estimate. These estimates give doctors unreliable data, which means an unreliable diagnosis. And perhaps there was that one time when your period was extremely painful, or there was a very unusual symptom, but you never really noticed. These small details are very important for your health, and giving the right information can prevent problems in your periods from becoming worse. Her Flo will help you exactly with that. Using our app, users can log their periods, and enter information such as their period date, flow amount, symptoms, and additional notes. The user can also take a look at previous symptoms that they logged, and check for anything unusual or odd in their periods. 9-14% of women have irregular periods*. That means around 535 million women suffer from periods that they can’t fully be prepared for. This leads to several problems… * Many women don’t even notice these irregularities between their busy lives, and miss signs that there is something unhealthy about their periods. * On top of that, young pre-teen girls who just had their first periods are confused. They have just experienced painful cramps, headaches, and more. * Most girls have irregular periods in their first few years, because their body is still new to this and doesn’t have a set schedule. It also reacts in different ways, and for some, these can be concerning. * And with their eventful teenage lives, these unpredictable and harsh periods just make things worse. Her Flo helps women of all ages, especially pre-teens and teens monitor their periods and stay healthy. So next time your doctor asks these questions, you can give them a confident and reliable answer just by checking the previous data you entered. *Source: Penn Medicine 2020

About

Vitals Sync

This app imports key health metrics from your Garmin device that are not automatically synced to your phone's health app. It securely transfers HRV, Respiration, SpO₂, and VO₂ Max data directly from your device.

Highlights
  • Syncs HRV, Respiration, SpO₂, and VO₂ Max
  • Automatic background sync
  • No duplicate entries
  • Secure token-based authentication
  • On-device processing
  • No app account or tracking
Features
Read full description

Vitals Sync imports four metrics your Garmin records but does not send to the Health app: HRV, Respiration, SpO₂, and VO₂ Max. Everything runs on your device. You sign in with your Garmin Connect account. The app reads the data your Garmin watch already recorded and writes it to the Health app on your iPhone. Most syncing tools cover only HRV. Vitals Sync does all four. WHAT YOU NEED • A Garmin Connect account • A Garmin watch that records these metrics, like the Forerunner, Fenix, Venu, vívoactive, Instinct, Epix, or Enduro series, and more WHAT IT SYNCS • Heart Rate Variability (HRV) • Respiration rate • Blood oxygen (SpO₂) • VO₂ Max FEATURES • Automatic background sync • No duplicates. Every reading is written once. • Your password is not stored. Only secure tokens, kept in the iOS Keychain on your device. • No account for this app, no tracking, no analytics, no servers PRIVACY Vitals Sync has no backend. It talks directly from your iPhone to your own Garmin account and to the Health app. We never see, collect, or store your data. Vitals Sync is an independent product and is not affiliated with, endorsed by, or sponsored by Garmin Ltd. or its subsidiaries, or by Apple Inc. Garmin® is a registered trademark of Garmin Ltd.

Screenshots

Her Flo4 screens
Vitals Sync4 screens

Verdict

The call

The clearest difference is review sentiment: Her Flo at 100% against Vitals Sync's 0%. Her Flo also leads on rating (5.0 vs 1.0) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Her Flo holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Her Flo has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Her Flo's written reviews are positive against 0% of Vitals Sync's.

Scorecard5 real differences · 5 level
Her Flo versus Vitals Sync: the parameters behind the verdict, then further details
ParameterHer FloVitals Sync
PriceFreeFree
Rating5.0 (6 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings6 — better1
Update frequency—Every 11 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11 — better17.0
Further details — not scored
Size49 MB4 MB
Age rating4+4+
DeveloperBusy Buzzy Bots Inc.UMUR GOKALP

Customer experience

Her Flo

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Vitals Sync

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Her Flo

No in-app purchases

None

Vitals Sync

No in-app purchases

Questions

Is Her Flo free?
Her Flo is free to download, with no in-app purchases.
Is Vitals Sync free?
Vitals Sync is free to download, with no in-app purchases.
Which has better reviews, Her Flo or Vitals Sync?
Her Flo is rated higher. Her Flo averages 5.0 out of 5 from 6 ratings, while Vitals Sync averages 1.0 from 1 ratings.
Do Her Flo or Vitals Sync have ads?
Neither Her Flo nor Vitals Sync shows ads.

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