Comparison

Conceplanner vs Belli

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

Head to head
About

Conceplanner

Features
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Conceplanner combines cycle tracking and partner biorhythms, offering tailored predictions to boost your chances of conception. Key Features: • Predict menstrual cycles and FERTILE DAYS with high accuracy. • Sync and analyze both partners’ BIORHYTHMS for optimal alignment. • Add your most favorable days directly to your CALENDAR. • Beautiful, intuitive WIDGETS: red gradients signal predicted flow, green gradients highlight fertile days. • Clear CHARTS to help you understand your biorhythms. Why this might work? Conception isn’t just about one person’s biology – it’s about harmony. By combining your cycle with partner biorhythms, Conceplanner highlights the golden days when your chances of conceiving are at their peak --- Begin your journey today and let love, timing, and science come together to help you create the family of your dreams! If the thought of motherhood has been quietly blooming within you, now may be the perfect moment to let it flourish. Plan your conception with Conceplanner. Joint parenthood planning isn’t just about increasing your chances of pregnancy. It’s about building a strong foundation for the future, for your children and your partnership. Conceplanner combines the power of biorhythm theory with data from the Apple Health app. Our app merges the biorhythms of both partners and highlights your most favorable and unfavorable days. It predicts fertility based on your menstrual cycle data, showing results clearly in the app and through intuitive widgets: red gradients signal predicted flow, while green gradients mark fertile days. You can easily save the best dates to your calendar or track them at a glance with widgets. Don’t let your dream of family stay on hold. Simply enter your and your partner’s dates of birth, and let the app do the calculations for you. It’s that easy. :) Are you ready to begin the next chapter of your life? Every great story begins with the right timing... --- Web: https://www.conceplanner.com/ Facebook: https://www.facebook.com/people/Conceplanner/61573611370975/ Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ !!! VERY IMPORTANT: Always trust your doctor! Please ask your doctor’s advice in addition to using this app and its components before making any decisions. WARNING: The applications and their components are provided as is with NO WARRANTY, you use them at your own risk and you acknowledge that we are not responsible for any losses, injuries, deaths or damages to persons or properties – direct, indirect or consequential. Follow the laws of your country and the country where you are located. Using the applications and their components and following the information contained in them is solely at your own risk. The biorhythm theory is the pseudoscientific idea – there is no scientific evidence that biorhythms work.

About

Belli

This app uses AI to estimate a baby's weight from a photo, offering a fun way to celebrate pregnancy. It's perfect for baby showers and other celebrations but is not for medical use.

Highlights
  • AI vision detection
  • Estimate baby weight
  • Use photo or selfie
  • Fun for baby showers
  • Pregnancy celebration tool
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Belli-Ai is a fun and engaging app designed to estimate the size of you baby. It uses an advanced AI vision detection engine to utilize an image or selfie photo and estimate the weight of your baby. Great fun at baby showers, or any celebration of your pregnancy! It is just for fun though and not clinically validated. Please do not make any medical decisions based on this app!

Screenshots

Conceplanner4 screens
Belli4 screens

Verdict

The call

The clearest difference is in-app purchases: Belli at none against Conceplanner's 2. Belli also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (12.0 vs 16.0). On price, ads and device support 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. Conceplanner sells 2 in-app purchases, starting at $0.99 per month. Belli asks for nothing beyond the download.

UpkeepUpdate frequency

Conceplanner ships an update every 3 months, Belli every 2 weeks. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 6 level
Conceplanner versus Belli: the parameters behind the verdict, then further details
ParameterConceplannerBelli
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size10 MB178 MB
Age rating17+4+
DeveloperMichal IndraFrederick Blair

In-app purchases

2 purchases

Conceplanner

Subscriptions2
  • Monthly subscription14 Days trial$0.991 Month
  • Yearly subscription1 Month trial$4.991 Year
None

Belli

No in-app purchases

Questions

Is Conceplanner free?
Conceplanner is free to download, with in-app purchases available.
Is Belli free?
Belli is free to download, with no in-app purchases.
Do Conceplanner or Belli have ads?
Both Conceplanner and Belli show ads.
Which is updated more often, Conceplanner or Belli?
Conceplanner ships an update every 3 months, and Belli every 2 weeks. Most recently, Conceplanner was updated on September 29, 2026 and Belli on September 30, 2026.

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