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IVY Perioden Kalender icon
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IVY Perioden Kalender

String Health, Inc. · Health & Fitness · Germany store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
+0
in 1 days, 148.2K in total
Rating
4.3 of 5
1.2K ratings in this store
Countries it ranks in
0
was 0 on Oct 18, 2026

Revenue

Estimated from the grossing charts of Oct 24, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in any grossing chart, and it sells nothing in the store (no in-app purchases, free download). Any revenue comes from ads or payments outside the store, which we can't see.
EST. LIFETIME DOWNLOADS
40.9K to 116.8K
Estimated from ratings count
RATINGS
1.2K
AVG RATING
4.33
PRICE
Gratis
AGE
15.4y
LAST UPDATE
12d ago
VERSION
7.7.3
SIZE
242 MB
AGE RATING
12+

Last 30 days

From our daily snapshots of every grossing chart and daily ratings counts.

DAYS IN A GROSSING CHART
6 / 30
COUNTRIES NOW
0 (was 0)
NEW RATINGS, LAST 1 DAYS
-1
EST. REVENUE A MONTH, DAILY · APP STORE EST
Show daily values
Sep 26, 2026not in a grossing chart
Sep 27, 2026$1.5K a month
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026$1.3K a month
Oct 24, 2026not in a grossing chart
Oct 25, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 26, 2026: not ranked. Now: not ranked.
RATINGS IN THE CORE COUNTRIES, DAILY
Show daily values
Oct 23, 2026148.2K ratings
Oct 24, 2026148.2K ratings
148.2K on Oct 23, 2026, 148.2K on Oct 24, 2026. New ratings track new downloads, even outside the charts.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
2.5 reviews / week
  • Trendfalling
  • Recent reviews average3.1 stars
  • Recent 1 and 2 star share48%
From the latest 500 written reviews, covering 1374 days. The store only returns this many, so this is the most recent slice.
RELEASE CADENCE
5 updates in 90 days
  • Typical gap between releases20 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
1.2K ratings
5★66%
4★16%
3★9%
2★2%
1★6%

What users want

From the latest 500 reviews on the Germany App Store, Jan 20, 2023 to Oct 8, 2026: 48% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Worse after an update55%

132 of the 1 and 2 star reviews.

★★★★★ With every update comes more disappointment.
★★★★★ I was forced to update the app from P.D.
★★★★★ I've been using this app for over 10 YEARS and update just deleted ALL OF IT.
Lost data, sync, backup19%

46 of the 1 and 2 star reviews.

★★★★★ With one of the last updates, it kicked me out and lost ALL of my data.
★★★★★ I've been using this app for over 10 YEARS and update just deleted ALL OF IT.
★★★★★ Have used this app for multiple years… recent update deleted everything.
Bugs, things not working16%

38 of the 1 and 2 star reviews.

★★★★★ However, for the last three months it's been glitching.
★★★★★ Every time I open this app, it keeps closing then opening then closing again.
★★★★★ App isn't working and no way to contact support.
Crashes and freezes11%

25 of the 1 and 2 star reviews.

★★★★★ the app won't load past the main screen :/
★★★★★ Instead the app is stuck on an ad trying to force me to pay almost $70 and I don't even get to try out what they want me to pay for.
★★★★★ i'm trying to at least retrieve my information at this point so i can have my history since i'm pretty irregular in general apps are very important to me i haven't opened the app in a week now the app won't open
Login and account problems8%

19 of the 1 and 2 star reviews.

★★★★★ Can't log in specific dates.
★★★★★ I cannot log in to my account.
★★★★★ Now it's gonna try charging me and I won't have anything in my account.
Slow, laggy, battery8%

18 of the 1 and 2 star reviews.

★★★★★ Now it lacks any visuals and it lags.
★★★★★ I get on the app this month to do my login and the screen hasn't been loading for about 4 days so I restarted the app.
★★★★★ However data/page loading takes unacceptably long, testing everyone's patience.
Wrong or poor results8%

18 of the 1 and 2 star reviews.

★★★★★ Useless I don't want yo spend my time dealing with an app all I want is to log my periods while going through perimenopause but apparently a literal period tracking app can't I am obviously going through perimenopause…
★★★★★ This used to be an amazing app years ago! The redesign IS AWFUL! It had a flower on ovulation day and much easier to navigate with better icons. Now it lacks any visuals and it lags. It takes forever just to click to…
★★★★★ So I have used this app for a while now and their newest update is the absolute worst! I get very irregular periods and on their old design I used to be able to have a nice list of the start and end dates of my period.…
Price and subscription5%

12 of the 1 and 2 star reviews.

★★★★★ I enjoyed this app for a while. With every update comes more disappointment. They want you to pay for everything they can squeeze out of you. Such a weird flex.
★★★★★ I wish I had read the reviews more seriously before paying for a year long subscription, as some of them are 10 years old (probably when the app was last updated).
★★★★★ I haven't been able to obtain a refund either.
WHAT THEY ASK FOR
  • I wish I had read the reviews more seriously before paying for a year long subscription, as some of them are 10 years old (probably when the app was last updated). 1★, Jun 25, 2025
  • Just wish they still had the section where you choose the discharge characteristics of that day. 5★, Sep 8, 2024
  • I wish the app still had the function to show my Fertile window in the cycle window and calendar window 4★, Jul 24, 2024
  • This app is extremely helpful to me, but it would be great to get help with finding good and trusted resources to help me with my period like pads, swimsuits, and even underwear for periods. 4★, May 8, 2024
  • i wish there was a better remedy for something like this since the point of an app like this is to click a button and forget about the rest. 1★, May 5, 2024
  • I also wish they brought back a calendar layout. 3★, Apr 2, 2024
  • I love this app but premium, it should be free because everything else in the app is free except some of the diet and exercises are with premium so I think you guys should let everything be free in the app because all… 5★, Feb 1, 2024
  • I wish that I could revert to the original version. 1★, Sep 19, 2023
WORDS THAT KEEP COMING UP IN BAD REVIEWS
new update39user friendly28find new11recent update11old version12update i've8update is terrible8go back11newest update7latest update7please fix8worth of data6
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Easy to use21%

49 of the 4 and 5 star reviews.

★★★★★ Simple and keeps data in one place.
★★★★★ Great tracker and predictor
★★★★★ I job this easy to use app that allows me to be reassured of there I am in my flow!
Useful, it helps18%

42 of the 4 and 5 star reviews.

★★★★★ This app is so cool and useful.
★★★★★ Very helpful and always on track!
★★★★★ I'm 11 and this helps me a lot when I'm to shy to ask questions
Accurate, great results14%

34 of the 4 and 5 star reviews.

★★★★★ I've been using this app for the last 10 years and it's always been accurate and it's free
★★★★★ it works perfectly for me because i tend to have normal cycles.
★★★★★ Very accurate every month it tolds me tha same day my period come !love it😍😍❤️❤️🔥🔥
Worth the money6%

14 of the 4 and 5 star reviews.

★★★★★ I've been using this app for the last 10 years and it's always been accurate and it's free
★★★★★ As I've learned more about cycle syncing I love that in the free version even of this app it shows you what part of your cycle you are in and will tell you the hormonal effects you may be feeling.
★★★★★ I used the free version for a long time and feel that I got a lot out this app.
Looks great4%

10 of the 4 and 5 star reviews.

★★★★★ Also Hi ich benutze die App schon ein mehreren Monate die App ist Mega aber da gibt es ein Problem nach dem Update sehe ich da kaum noch durch und zu viele Dinge kosten Geld bitte wir Frauen brauchen Hilfe und ihr…
★★★★★ I like this app, it's easy to use!
★★★★★ Plus the user-interface is really nice.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Germany App Store.

★★★★★Oct 8, 2026
No longer accurate

Since my wife started perimenopause and her periods are irregular the data no longer shifts when the information is entered. So if her period starts in the middle of the predicted ovulation cycle the app no longer adjusts the dates.

★★★★★Jul 8, 2026
Period Log Won’t Save

I started my cycle and went to enter it days later and it won’t accept the old date. It’s very frustrating.

★★★★★Jun 30, 2026
New Update fixed Issue

After you all posted a new update, the app is now working again, and I am soooo happy! 😃 I didn’t lose any of my saved information.

★★★★★Jun 10, 2026
Been tracking with this for years

Simple and keeps data in one place. Love it!

★★★★★May 28, 2026
Works, but AI

The app works great for tracking and has some cool meditation and workout things, but its privacy policy states it submits all your data to OpenAI and uses AI to create their content,

★★★★★May 21, 2026
Easy and Reliable

Great tracker and predictor

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

und35die11der10zyklus9ivy perioden8perioden kalender8perioden7mit7kalender6deine6des6ivy5periode5gesundheit5oder5jeder phase5deine periode5deinen4symptome4jeder4phase4zur4ist4eisprung und3

What's new in 7.7.3

Hallo Bellas, diesmal keine großen Änderungen, nur ein kleines Feintuning! Wir haben kleinere Fehler behoben und ein paar Verbesserungen vorgenommen, damit eure IVY-App reibungslos läuft. Alles Liebe, das IVY-Team

Released May 19, 2011. Current version shipped Oct 13, 2026.

Store description

Erlebe, warum so viele Frauen auf IVY Perioden Kalender vertrauen, um ihre Periode, ihren Eisprung und ihre allgemeine reproduktive Gesundheit zu verfolgen. - Perioden- und Zyklusüberwachung mit optionaler Verschlüsselung - Jederzeit alle oder ausgewählte Gesundheitsdaten dauerhaft löschen - Die Daten werden niemals an Drittorganisationen weitergegeben oder verkauft - Gemeinsam mit führenden Gesundheits- und Medizinexperten entwickelt Beende das Rätselraten bei Zyklusverfolgung und Schwangerschaftsplanung. Verfolge deinen einmaligen Menstruationszyklus und erhalte tiefe Einblicke und Kenntnisse zu deiner reproduktive Gesundheit. Die eigenentwickelt KI-Technologie in IVY Perioden Kalender hilft, deinen Menstruationszyklus sowie Symptome, Gewicht und Temperatur in jeder Phase zu verfolgen. Mit dieser Periodenverfolgungs-App überwachst und verstehst du deinen Zyklus besser, und triffst fundierte Entscheidungen über deine Gesundheit, z. B. bei Familienplanung und anderen reproduktiven Gesundheitsanforderungen. Außer zur Verfolgung von Periode und fruchtbaren Zeitfenstern ist IVY Perioden Kalender eine der besten Apps zur Überwachung des weiblichen Zyklus. Sie enthält Gesundheits- und Wellness-Inhalte und -Einblicke, die mit und nicht gegen die schwankenden Hormonen arbeiten. ZYKLUS- UND PERIODENVERFOLGUNG Hast du dich je gefragt, wann du deine Periode bekommst? IVY Perioden Kalender hilft, deinen Zyklus zu erfassen, zu verstehen, in welcher Phase du bist, und zu lernen, wie du mit den steigenden und fallenden Hormonspiegeln umgehen kannst. Verfolge deine Periode und notiere alle Symptome, die mit jeder Phase des Zyklus einhergehen. - Periodenprotokoll - Periodenkalender - Erfasse Blutfluss, Symptome, Stimmungen, Gewicht, Temperatur und Notizen. EISPRUNG-RECHNER UND KALENDER Das Wissen um fruchtbares Zeitfenster und Tag des Eisprungs ist entscheidend, ob du schwanger werden willst oder nicht. Der Algorithmus des Perioden-Tagebuchs meldet, wann es „Zeit ist“ oder wann du vorsichtig sein musst. - Vorhersage von Eisprung und fruchtbarem Zeitfenster - Zykluskalender - Erfassung von Ausfluss, Symptomen, Stimmungen, Gewicht, Temperatur und Notizen ÜBERWACHUNG DER SCHWANGERSCHAFT Verfolge die Entwicklung deines Babys in jeder Phase. Erfahre, was jede Woche, jeder Monat und jedes Trimester bringt und wie du jede Phasen voll ausnutzt. Befolge Ratschläge der Experten, um das Beste aus deiner Schwangerschaft zu machen. - Unterstützung in der Schwangerschaft und nach der Geburt BERICHT ZUR REPRODUKTIVEN GESUNDHEIT Exportiere deine Daten zur reproduktiven Gesundheit, inklusive aller Zyklusprotokolle und einer Übersicht über die Muster im Laufe des Monats. WELLNESS-COACHING Erfasse Zyklus und Symptome und abonniere ein Coaching, um auf dich, deine Ziele und Zyklusphase abgestimmtes Material zu erhalten. IVY Perioden Kalender bietet dir täglich Tipps zu Ernährung, Workout und Achtsamkeit, damit du während deines Zyklus gesund und ausgeglichen bleibst. Mit über 1.000 Artikeln zu allen Aspekten der Frauengesundheit wirst du Expertin deines Körpers und Zyklus. - Stimmungsaufhellung, Schmerzlinderung, Energieschub, Hilfe bei der Verdauung, besserer Schlaf, Workouts, Ernährung, Meditationen, Achtsamkeitsübungen und mehr. ERINNERUNGEN Lass dich erinnern, wenn deine Periode fällig ist oder dein fruchtbares Zeitfenster beginnt. Nachdem ein Abonnement erworben wurde: - Die Zahlung wird nach der Kaufbestätigung deinem Apple-Konto belastet. - Wird die automatische Verlängerung in den Kontoeinstellungen nicht mindestens 24 Stunden vor Ablauf des aktuellen Zeitraums abgeschaltet, verlängern sich die Abonnements automatisch und kostenpflichtig. - Der ungenutzte Teil eines Gratis-Testzeitraums, falls angeboten, verfällt, wenn die Nutzerinnen ein Abonnement erwerben. Nutzungsbedingungen: https://legal.stringhealth.ai/terms-of-use.html

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