Duelle vs TwinLog
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Duelle
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Duelle is a pregnancy tracking and education app built exclusively for women carrying twins, triplets, or more. Every piece of content, every tracking tool, and every week of your pregnancy is designed around the realities of a multiples pregnancy, including higher-risk monitoring, chorionicity differences, and the unique physical and emotional experience of carrying more than one baby. What Duelle includes: - Week-by-week education written specifically for multiples pregnancies, covering what is happening with your babies and your body from the first trimester through delivery. Free through Week 20. Full access through Week 35 requires a Duelle Premium subscription ($12.99/month). - Content automatically adjusts based on your due date and chorionicity type, so monochorionic twin families see the content that is relevant to them. - Growth and development tracking for both babies, with the ability to log appointments, scan results, and notes from your care team. Growth tracking requires a Duelle Premium subscription ($12.99/month). - TTTS awareness content and early symptom education for families with monochorionic twins, delivered at the gestational weeks it matters most. - A Care Team log to store provider contacts, appointment notes, and communication history in one place. Shareable care summaries make it easy to stay organized across your OB, MFM, and birth team. - A built-in due date calculator and pregnancy timeline that accounts for the earlier typical delivery window for multiples. - Medication tracking and appointment reminders require a Duelle Premium subscription ($12.99/month). Duelle does not replace your medical team. All health-related content includes medical disclaimers, and the app is designed to help you show up to your appointments more informed, not to provide medical advice. Duelle Premium: $12.99/month, auto-renewing. Subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. Cancel anytime in your App Store account settings. Who Duelle is for: Duelle is for any woman pregnant with multiples who has searched for information and found content that was not written for her situation. It is for the woman who just found out she is having twins and does not know what to expect. It is for the monochorionic pregnancy that needs more specific information, and so many more. Every heartbeat, accounted for. Privacy Policy: https://duelle.app/privacy Terms of Use: https://duelle.app/terms
TwinLog
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Baby Tracker helps parents log and review everything that matters in their baby's day โ feedings, sleep, medicine, temperature, eliminations and weight. Designed from the ground up for families with twins or multiples, the app supports multiple babies in a shared household so both parents always see the same data in real time. Features: โข Log feedings with optional milk quantity โข Track sleep, medicine (Paracetamol, Antibiotics, Vitamin D), temperature, eliminations and weight โข Shared household โ both parents log and see the same data โข Full history with timeline view per baby โข Works offline โ syncs automatically when back online โข Dark mode
Screenshots
Verdict
The clearest difference is in-app purchases: TwinLog at none against Duelle's 1. TwinLog also leads on update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Duelle sells 1 in-app purchase, starting at $12.99 per month. TwinLog asks for nothing beyond the download.
Duelle ships an update every 4 months, TwinLog every 3 weeks. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.
| Parameter | Duelle | TwinLog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details โ not scored | ||
| Size | 29 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | MaterniFlow, INC | David Gormez |
In-app purchases
Duelle
- Duelle Premium$12.991 Month
TwinLog
No in-app purchases







