Nerd Contraction Timer vs World Heart Day
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nerd Contraction Timer
Effortlessly track labor contractions with this intuitive app. It provides clear visualizations of patterns, intensity, and duration, offering smart alerts to help you know when to head to the hospital. Focus on your delivery with organized data and a clean interface.
- One-tap start/stop contraction tracking
- Contraction chart with intensity levels
- Adjustable contraction intensity
- Edit contractions anytime
- Smart 5-1-1 hospital alerts
- Progress bar visualization
- Automatic duration, interval, and frequency calculations
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Nerd Contraction Timer; Track Labor Easily and Confidently Your reliable companion for every moment of labor. Designed for expecting mothers and birth partners, Contraction Timer makes it effortless to track contractions, understand patterns, and know exactly when it’s time to head to the hospital, all in one clear, intuitive view. Smart Features for Peace of Mind - One-tap start/stop to record each contraction with precision - Contraction Chart with color-coded intensity levels that instantly show how your labor is progressing - Adjust intensity easily long-press any contraction to change its strength - Edit contractions anytime by tapping once to fix or update details - Smart 5-1-1 alerts that notify you when it’s time to go to the hospital - Progress Bar that visualizes how far along you are in your delivery journey - Automatic calculations of duration, intervals, and frequency - Nerd Interface Mode — a minimalist, data-focused design for users who love clean visuals and exact stats Stay Calm. Stay Informed. Contraction Timer keeps all your contraction data organized in one simple, beautiful interface — so you can focus on what matters most: welcoming your baby. Disclaimer: This app is not a medical device. Always consult your healthcare provider to guide decisions about labor or delivery timing.
World Heart Day
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Welcome to the official World Heart Day app, created by the World Heart Federation. Every year on September 29, World Heart Day unites individuals, healthcare leaders, and organizations across more than 100 countries to take daily action against cardiovascular disease (CVD) — the world's leading cause of death. Join our global movement to protect heart health, track physical activity, test your knowledge, and connect with a passionate community worldwide! Key Features: INTERACTIVE WORLD HEART MAP Explore real-time community engagement around the globe. Discover heartfelt stories, physical activity pulses, and photos from participants in every country and city. KEEP THE BEAT CHALLENGE Track your daily activities — whether walking, running, cycling, dancing, or healthy habits. Sync with your pedometer, reach daily step goals, and share your milestones with inspiring photos and captions. INTERACTIVE HEART HEALTH QUIZ Challenge yourself with official cardiovascular health quizzes. Discover key facts about heart disease prevention, healthy nutrition, and lifestyle habits, and receive a personalized health score. MEET CARDI – YOUR AI HEALTH ASSISTANT Have questions about cardiovascular well-being, exercise routines, or heart-healthy nutrition? Ask Cardi, your intelligent guide for daily motivation and credible health insights. MULTILINGUAL & GLOBAL COMMUNITY Fully available in over 25 languages with an inclusive global design. Like, comment, and encourage stories shared by heart champions around the world. Take action for your heart and inspire others. Download the World Heart Day app today and Use Heart for every beat!
Screenshots
Verdict
The clearest difference is update cadence: World Heart Day at every 3 days against Nerd Contraction Timer's every 10 days. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Nerd Contraction Timer ships an update every 10 days, World Heart Day every 3 days. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.
| Parameter | Nerd Contraction Timer | World Heart Day |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 162 MB |
| Age rating | 4+ | 4+ |
| Developer | Clement Rousseau | Synaptic Hub |
In-app purchases
Nerd Contraction Timer
No in-app purchases
World Heart Day
No in-app purchases
Questions
Is Nerd Contraction Timer free?
Is World Heart Day free?
Do Nerd Contraction Timer or World Heart Day have ads?
Which is updated more often, Nerd Contraction Timer or World Heart Day?
Other comparisons
