Gestation Aging vs NAVAS VetACT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gestation Aging
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The Gestation Aging app helps the user estimate the age of gestation in the the species of animal chosen. The user picks the ultrasound measurement from the pick list and the app returns the gestation age. The species represented in this app include Bovine (Cow), Ovine (Sheep), Caprine (Goat), Camelid (Alpaca, Llama, Camel), Equine (Horse), Cervine (Deer), Bubaline (Buffalo), Canine (Dog), Feline (Cat) and Porcine (Swine). Within some species (Caprine, Camelid, Cervine and Canine), a list of animal types is offered. Each species has its own set of measured items used to assess the age of the fetus. Gestation age in days is either calculated based on formulas or derived from look up tables. The days to parturition is calculated using the average accepted gestation length and subtracting the gestation age. Also included is a +/- value to illustrate the normal range of gestation length.
NAVAS VetACT
Access critical event management guidelines and quickly find essential information on diagnoses, treatments, and medications. This educational tool supports veterinary professionals in managing common emergencies.
- Critical event management
- Diagnosis information
- Treatment protocols
- Drug reference
- NAVAS guidelines
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Manage critical events with NAVAS guidelines. Quickly find diagnosis, treatment, and drug information for common events.
Screenshots
Verdict
The clearest difference is price: NAVAS VetACT at Free against Gestation Aging's $0.99. NAVAS VetACT also leads on update cadence (every 5 weeks vs every 23 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement 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
NAVAS VetACT is free to download; Gestation Aging costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gestation Aging ships an update every 23 months, NAVAS VetACT every 5 weeks. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.
| Parameter | Gestation Aging | NAVAS VetACT |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 23 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 9 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Wisconsin - Madison School of Veterinary Medicine | Conor Vickers |
In-app purchases
Gestation Aging
No in-app purchases
NAVAS VetACT
No in-app purchases
Questions
Is Gestation Aging free?
Is NAVAS VetACT free?
Do Gestation Aging or NAVAS VetACT have ads?
Which is updated more often, Gestation Aging or NAVAS VetACT?
Other comparisons
