Comparison

Make Babies vs Rainbow data

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

Head to head

Your fertility data tracker

Free

💪 Health & Fitness

No ratingsView app →

About

Make Babies

Features

Read full description

It takes two to Make Babies. Make Babies lets you connect with your partner so they know when the optimal time is for you to conceive a baby. Comes with Apple Watch support. Keep it personal between you and your partner. Get a tap on your wrist when the optimal time is coming. View a count down on your Apple Watch. Supports Apple Watch Complications. Ladies and Gentlemen. It's time to make babies.

About

Rainbow data

Features

Read full description

The fertility data tracker for data geeks. Rainbow Data will help you: - Track your cycle and predict ovulation if you are trying to conceive naturally - Track your Basal body temperature (BBT) and detect ovulation based on charting, ovulation tests or lab tests - Schedule drug and supplement reminders and track their usage - Record, review and analyse lab test results - Build a full picture of your fertility data - Enjoy a beautiful and minimal design!

Screenshots

Make Babies2 screens

Rainbow data4 screens

Verdict

The call

The clearest difference is update cadence: Rainbow data at every 3 weeks against Make Babies's every 3 months. Make Babies's advantage is device support (4 vs 2) and iOS requirement (9.0 vs 13.0). On price, ads and in-app purchases 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.

UpkeepUpdate frequency

Make Babies ships an update every 3 months, Rainbow data every 3 weeks. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 3 level

Make Babies versus Rainbow data: the parameters behind the verdict, then further details
Parameter	Make Babies	Rainbow data
Price	Free	Free
Update frequency	Every 3 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod, Apple Watch — better	iPhone, iPod
Requires iOS	9.0 — better	13.0
Further details — not scored
Size	22 MB	29 MB
Age rating	4+	17+
Developer	Big Feet Productions Ltd	Various MB

In-app purchases

None

Make Babies

No in-app purchases

None

Rainbow data

No in-app purchases

Questions

Is Make Babies free?

Make Babies is free to download, with no in-app purchases.

Is Rainbow data free?

Rainbow data is free to download, with no in-app purchases.

Do Make Babies or Rainbow data have ads?

Neither Make Babies nor Rainbow data shows ads.

Which is updated more often, Make Babies or Rainbow data?

Make Babies ships an update every 3 months, and Rainbow data every 3 weeks. Most recently, Make Babies was updated on October 15, 2026 and Rainbow data on September 28, 2026.