Comparison

Kalendarzyk Bella vs Bude App

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

Head to head
About

Kalendarzyk Bella

Track your menstrual cycle, ovulation, and fertile days with this free app. Set reminders for pills and log symptoms to stay informed about your cycle. Designed for safety, comfort, and convenience.

Highlights
  • Menstrual cycle tracking
  • Ovulation prediction
  • Fertile window calculation
  • Pill reminders
  • Symptom logging
  • Cycle data updates
Features
Read full description

Do you want to know when your period starts? Or perhaps you need to know when your fertile days start in the coming month? Thanks to this free application you will be able to make a note of your cycle on your smartphone which you carry around with you almost all the time. Ovulation, infertile days or the menstruation itself will not surprise you anymore. The Bella menstrual calendar allows you to update the data, set reminders about, for example, taking the pill or describe the symptoms of the last period. The safety, comfort and convenience of this tool mean that you will never forget about your important days again. --------------------------------------- Application is also available in languages: Polish, Russian, Lithuanian, Slovak, Uzbek and Georgian. Read further for short description in your language. --------------------------------------- Polish: Chcesz wiedzieć, kiedy zaczyna się Twoja miesiączka? A może potrzebujesz widzieć, jak w nadchodzącym miesiącu wypadną Twoje dni płodne? Dzięki tej bezpłatnej aplikacji będziesz mogła z powodzeniem zapisywać dane swojego cyklu na smartfonie, którego niemal zawsze nosisz przy sobie. Owulacja, dni niepłodne czy sama menstruacja już Cię nie zaskoczą. Kalendarzyk miesiączkowy Bella pozwoli Ci aktualizować dane, ustawiać przypomnienia dotyczące np. wzięcia pigułki czy opisywać objawy ostatniej miesiączki. Bezpieczeństwo, komfort i wygoda użytkowania tego narzędzia, już nigdy nie pozwolą Ci zapomnieć o ważnych dla Ciebie dniach. (http://bella.pl/mobile_app) --------------------------------------- Lithuanian: Ar norėtum žinoti kada prasidės ateinantis tavo periodas? O galbūt tau reikia informacijos apie artimiausias vaisingas dienas? Ši aplikacija padės tau gauti atsakymus apie tavo ciklą tavo telefone, kuris visada su tavimi. Ovuliacija, nevaisingos dienos ar artėjančios menstruacijų dienos tau nebus staigmena. Bella kalendoriuje galėsi atnaujinti duomenis, gauti priminimus ar žymėtis pastabas apie savo ciklą. Aplikacija yra saugi ir ja patogu naudotis. (http://bella-global.com/mobile_app) --------------------------------------- Slovak: Chceš mať prehľad o tom, kedy ti začne menštruácia? Alebo potrebuješ vedieť kedy ti začínajú plodné dní? Vďaka tejto aplikácii, ktorá je zadarmo, si budeš môcť zaznamenávať svoj cyklus. Ovulácia, plodné dni alebo menštruácia ťa už viac neprekvapí. Menštruačný kalendár Bella ťa navyše aj upozorní napr. aby si si zobrala tabletku alebo si môžeš zaznamenať poznámky, symptómy a nálady. Bezpečnosť, komfort a pohodlie s touto aplikáciou ti zaručí, že už nikdy nezabudneš na svoje dni. (http://bella-global.com/mobile_app) --------------------------------------- Georgian: (http://bella-global.com/mobile_app) --------------------------------------- Uzbek: Hayz ko’rishga oid Bella taqvimi. Hayz qachon boshlanishini har doim yodda tutishni istaysizmi? Balki homilador bo’lishga qulay kunlar qachonligini bilishni hohlaysiz? Ushbu bepul ilova yordamida siz qo’l ostidagi qo’l telefoningizda qaydlar qilishingiz mumkin. Ovulyatsiya kunlari, havfsiz kunlar, hayz kunlari endi siz uchun kutilmagan yangilik bo’lmaydi. Bella hayz taqvimi sizga quyidagi imkoniyatlarni beradi: qachon kerakli dorilarni qabul qilishingiz kerak, o’zingizni qanday his qilyapsiz. Qulay va havfsiz ilova sizning muxim kunlaringiz haqida eslatib turadi. (http://bella-global.com/mobile_app)

About

Bude App

Track your pregnancy progress with health monitoring, weekly insights, and planning tools. Connect with a supportive community of expectant mothers to share experiences and find encouragement throughout your journey.

Highlights
  • Health and growth monitoring
  • Weekly pregnancy insights
  • Pregnancy calendar and task management
  • Community support network
  • Belly size tracking
  • Blood pressure and weight logging
Features
Read full description

Navigate your pregnancy journey with a comprehensive set of tools designed for the modern expectant mother. Our application focuses on providing clear health data and organizational support while connecting you with a network of peers experiencing the same milestones. Health and Growth Monitoring: Stay informed about your physical changes by logging vital statistics including blood pressure and weight. The application provides a clear visual representation of your data, allowing you to monitor trends and belly size changes through intuitive charts. We focus on providing you with your own raw data in an organized format to help you stay aware of your progress from the first trimester through delivery. Weekly Insights and Planning: Receive updates tailored to your specific week of pregnancy. These insights cover your baby’s development and explain the common physical changes you may experience. Keep you organized: the built-in pregnancy calendar and task management system help you track medical appointments and manage essential preparations like hospital bag checklists and nursery planning. Community and Support: Join a dedicated community of pregnant women to share experiences and find support. The social features allow you to communicate with others in your specific stage of pregnancy, offering a space to exchange tips and discuss the unique joys and challenges of the journey toward motherhood. Medical Disclaimer: This app is a tool for tracking and logging information and is not intended to diagnose, treat, or prevent any medical condition, including hypertension or preeclampsia. The blood pressure tracking feature is for personal record-keeping only. Always seek the advice of a doctor or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this app.

Screenshots

Kalendarzyk Bella4 screens
Bude App4 screens

Verdict

The call

The clearest difference is rating: Bude App at 5.0 against Kalendarzyk Bella's 4.5. Bude App also leads on update cadence (monthly vs every 3 months). Kalendarzyk Bella's advantage is ratings volume (33 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

Bude App holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Kalendarzyk Bella has 33 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Kalendarzyk Bella ships an update every 3 months, Bude App monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Kalendarzyk Bella versus Bude App: the parameters behind the verdict, then further details
ParameterKalendarzyk BellaBude App
PriceFreeFree
Rating4.5 (33 ratings)5.0 (1 ratings) — better
Positive reviews37.5% of reviews—
Number of ratings33 — better1
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 — better14.0
Further details — not scored
Size35 MB9 MB
Age rating12+17+
DeveloperTORUNSKIE ZAKLADY MATERIALOW OPATRUNKOWYCH S AJarji Janadze

Customer experience

Kalendarzyk Bella

All ratings32 ratings
Positive90.6%
Neutral0.0%
Negative9.4%
Written reviews8 reviews
Positive37.5%
Neutral12.5%
Negative50.0%

Bude App

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kalendarzyk Bella

No in-app purchases

None

Bude App

No in-app purchases

Questions

Is Kalendarzyk Bella free?
Kalendarzyk Bella is free to download, with no in-app purchases.
Is Bude App free?
Bude App is free to download, with no in-app purchases.
Which has better reviews, Kalendarzyk Bella or Bude App?
Bude App is rated higher. Kalendarzyk Bella averages 4.5 out of 5 from 33 ratings, while Bude App averages 5.0 from 1 ratings.
Do Kalendarzyk Bella or Bude App have ads?
Neither Kalendarzyk Bella nor Bude App shows ads.
Which is updated more often, Kalendarzyk Bella or Bude App?
Kalendarzyk Bella ships an update every 3 months, and Bude App monthly. Most recently, Kalendarzyk Bella was updated on November 6, 2026 and Bude App on October 30, 2026.

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