Virtual Observer vs Bivalves@IPMA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Virtual Observer
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Our unique solar or boat powered camera mounts onto a fishing vessels of all shapes and sizes and works with a simple smart-phone app.
Bivalves@IPMA
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App of the Portuguese System for Bivalve Mollusc Monitoring bivalves@ipma is a free application of the Instituto Português do Mar e da Atmosfera, which provides up-to-date information on the current status of bivalve mollusc harvesting in Portugal.
Screenshots
Verdict
The clearest difference is update cadence: Virtual Observer at every 2 weeks against Bivalves@IPMA's every 3 months. Virtual Observer also leads on iOS requirement (13.4 vs 15.6). 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.
Virtual Observer ships an update every 2 weeks, Bivalves@IPMA every 3 months. Both last shipped on November 3, 2026.
| Parameter | Virtual Observer | Bivalves@IPMA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 70 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Shellcatch Inc | Gisgeo Information Systems, LDA |
In-app purchases
Virtual Observer
No in-app purchases
Bivalves@IPMA
No in-app purchases
Questions
Is Virtual Observer free?
Is Bivalves@IPMA free?
Do Virtual Observer or Bivalves@IPMA have ads?
Which is updated more often, Virtual Observer or Bivalves@IPMA?
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