# Календарь прививок и развития vs Сontractions Timer

The clearest difference is rating: Сontractions Timer at 5.0 against Календарь прививок и развития's 4.1. Сontractions Timer also leads on iOS requirement (15.0 vs 17.0). Календарь прививок и развития's advantage is in-app purchases (none vs 1) and ratings volume (76 vs 2). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Сontractions Timer sells 1 one-off in-app purchase. Календарь прививок и развития asks for nothing beyond the download.

Сontractions Timer holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Календарь прививок и развития has 76 ratings behind it against 2, so its average is the more settled of the two.

Календарь прививок и развития ships an update every 2 days, Сontractions Timer every 4 days. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Календарь прививок и развития | Сontractions Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (76 ratings)](https://appshunter.io/ios/app/id6473169862/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ontractions-timer-labor/id6746668275/reviews)** |
| Number of ratings | **76** | 2 |
| Positive reviews | 75.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free | Free |
| Size | 64 MB | 52 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitrii Chetovanov](https://appshunter.io/developer/1718524648) | [Yauheni Shcharbuk](https://appshunter.io/developer/1817790294) |

## What reviewers say

### Календарь прививок и развития

[App page](https://appshunter.io/ios/app/id6473169862)

This app helps mothers track their baby's development and growth spurts with expert advice and personalized recommendations. It offers a comprehensive suite of tools to make childcare easier and more enjoyable, all for free.

**Highlights:** Baby development trackers, Growth spurt tracking, Expert articles on parenting, Personalized recommendations, Childcare convenience tools

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Very user-friendly interface
- 🌟 Excellent for tracking baby's development
- 💡 Comprehensive information and articles
- 💬 Great community chat support
- 🚀 Efficient tracking of sleep and feeding

**What reviewers complain about**

- 🐛 Bugs and glitches reported
- ⚠️ Frequent app updates can be annoying
- ❌ Some updates negatively impact functionality
- 🚫 Issues with app login/access
- 📉 Data loss due to account issues

**Reported bugs**

- App crashes and logs out users
- Data loss after logging out
- Incorrect time tracking for bottle feeding and sleep
- Buttons not responding or not saving information
- App not launching or login errors

**Requested features**

- Widget on the lock screen
- More space for comments in 'complementary feeding'
- Widget for baby's awake time on the main screen
- Manual entry for walks
- Widget for iOS main screen


### Сontractions Timer

[App page](https://appshunter.io/ios/app/ontractions-timer-labor/id6746668275)

This app helps pregnant women time contractions, track their duration and intervals, and provides guidance on when to head to the hospital. It's designed to be a reliable companion during labor and childbirth.

**Highlights:** Contraction timer, Automatic interval calculation, Contraction history log, Labor recommendations, First pregnancy mode, Resources for expectant mothers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Календарь прививок и развития free?

Календарь прививок и развития is free to download, with no in-app purchases.

### Is Сontractions Timer free?

Сontractions Timer is free to download, with in-app purchases available.

### Which has better reviews, Календарь прививок и развития or Сontractions Timer?

Сontractions Timer is rated higher. Календарь прививок и развития averages 4.1 out of 5 from 76 ratings, while Сontractions Timer averages 5.0 from 2 ratings.

### Do Календарь прививок и развития or Сontractions Timer have ads?

Neither Календарь прививок и развития nor Сontractions Timer shows ads.

### Which is updated more often, Календарь прививок и развития or Сontractions Timer?

Календарь прививок и развития ships an update every 2 days, and Сontractions Timer every 4 days. Most recently, Календарь прививок и развития was updated on October 16, 2026 and Сontractions Timer on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*