GestAge vs ALUVUU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GestAge
This medical app assists healthcare professionals and pregnant individuals in accurately calculating due dates and gestational age. It provides essential tools for managing pregnancy timelines.
- Calculate due date
- Calculate gestational age
- Pregnancy timeline management
- Tools for healthcare professionals
- Tools for pregnant women
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Gynaecologists, midwives, general practitioners, medecine students, nurses and above all pregnant women, this software easily calculates the due date and the gestational age during a pregnancy.
ALUVUU
This app offers detailed fetal growth information, including 3D models and graphs from 4 to 40 weeks. It allows for customization of fetal avatars and management of personal health data like blood pressure and weight. Users can also archive fetal milestones and upload 3D ultrasound videos.
- Fetal 3D avatar model editing
- Fetal growth information and graphs
- Healthcare data management
- Bluetooth device support
- 3D ultrasound video uploads
- Fetal Model Archives
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ALUVUU is a service that provides fetal growth information and fetal 3D model editing / recommendation for your baby, and allows you manage your health information through healthcare service. * You can sign in with Apple without any registration process. Main features - Fetal 3D avatar model editing / recommendation: You can modify the fetal model after 17 weeks. When you register the fetus information, if you register an ultrasound image with a good fetal face by 3D ultrasound device in hospital, it will recommend and reflect the appearance. The input image is not necessary unless you are using recommendation. - Fetal growth information: fetus 3D models (4~40 weeks) and fetal growth graph provided - Fetal Model Archives: Save models of specific weeks to stories via snapshot function - Healthcare: You can check your health status by entering the data you measured - Healthcare Support Items: Blood Pressure/Glucose, Body Weight, Body Temperature, Fetal Movement, Labor Pain, Food, Exercise, Menstruation - Bluetooth Device Support Items: Body Weight - Uploading 3D ultrasound videos ( video will be uploaded to story post )
Screenshots
Verdict
The clearest difference is rating: ALUVUU at 5.0 against GestAge's 2.0. ALUVUU also leads on in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 3 months). On price, ratings volume, ads 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. GestAge sells 2 one-off in-app purchases. ALUVUU asks for nothing beyond the download.
ALUVUU holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 81% of GestAge's written reviews are positive against 100% of ALUVUU's.
GestAge ships an update every 3 months, ALUVUU every 3 weeks. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | GestAge | ALUVUU |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 81.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 63 MB |
| Age rating | 17+ | 12+ |
| Developer | J. Verchere | GIRJAESOFT Co., Ltd. |
Customer experience
GestAge
ALUVUU
In-app purchases
GestAge
- Ultrasound scan tools$0.99
- Just get rid of the ads !$9.99
ALUVUU
No in-app purchases









