Contraction Timer + vs Waa Waa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contraction Timer +
Easily track the duration and frequency of your contractions. This app records labor history, displays progress graphically, and offers guided breathing exercises. It also includes a handbook with information on contractions and labor.
- Track contraction duration and intervals
- Graphic display of interval changes
- Meditation and breathing aids
- Handbook on contractions and labor
- Saves labor history across restarts
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Contraction Timer + helps you time your contractions. Simply press the start button when the contraction starts and the stop button when the contraction ends. Contraction Timer will keep a history of when each contraction started, how long it lasted, and the frequency between each one. Your full labor history and contraction progress will be saved regardless of whether you restart the application during your labor, or restart the entire device. There is no need to keep this application open the whole time. Main functions: - Tracking the duration of contractions and the intervals between them. - Graphic display of interval change. - Sounds and visual effects for meditation and proper breathing. - Handbook and answers to questions about contractions and labor. This App is not intended for medical use, or to replace the advice of a trained medical doctor. We disclaim any liability for the decisions you make based on this information, which is provided to you on a general information basis only and not as a substitute for personalized medical advice. If you have any concerns about your pregnancy, consult with your doctor or midwife.
Waa Waa
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A new way to truly connect with your baby. Ever wondered why your baby is crying? Every cry carries a message — and AI helps you hear it. Powered by advanced AI who delicately interprets the emotions within your baby’s cries to help you understand their needs and feelings in real time. Now, listen to the heart behind every cry. What You Can Do: Real-Time Cry Analysis – Record your baby’s cry and get instant emotional insights. Video & Audio File Analysis – Upload recorded files and discover what your baby was trying to say. Cry Pattern Statistics – Track and visualize your baby’s crying trends over time. Baby Profile Management – Create personalized profiles to log growth milestones and emotional history. How AI Understands Baby Cries: AI is trained on a dataset of over 1,500 labeled baby cry samples, each with known causes. Using the Audio Spectrogram Transformer (AST) — a state-of-the-art AI model that interprets complex sound patterns — AI performs single-class classification to identify emotional cues behind each cry. After countless learning iterations and backtesting, AI brings science and empathy together to decode your baby’s world of sound. Follows Apple’s standard license agreement. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Contraction Timer + at none against Waa Waa's 1. Waa Waa's advantage is update cadence (every 2 days vs every 7 months) and device support (3 vs 1). On price and ads 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
Both are free to download. Waa Waa sells 1 in-app purchase, starting at $0.99 per month. Contraction Timer + asks for nothing beyond the download.
Contraction Timer + ships an update every 7 months, Waa Waa every 2 days. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.
| Parameter | Contraction Timer + | Waa Waa |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.8K ratings) — better | — |
| Positive reviews | 76.1% of reviews | — |
| Number of ratings | 1.8K — better | — |
| Update frequency | Every 7 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 59 MB |
| Age rating | 12+ | 4+ |
| Developer | David Hendren | 1tier |
Bugs and requests
Contraction Timer +
Reported bugs
3 issues- Disappearing text on the screen
- Inaccurate contraction interval calculations
- Failure to record contraction data
Requested features
3 requests- Ability to track contraction intensity
- Background tracking of contractions
- Option to mute sounds
Waa Waa
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Contraction Timer +
No in-app purchases
Waa Waa
- Premium Plan (No Ads)1 Month trial$0.991 Month









