Comparison

MARINElife vs COSEA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MARINElife

Features
Read full description

MARINElife is a science charity that conducts an Ocean Health Check by gathering information of key marine species so they can be better protected. We provide relevant, robust and up-to-date information to those working for the sustainable future of our oceans.

About

COSEA

Document marine environments, coastal habitats, and species. Report on pollution, infrastructure, and the blue economy. Contribute data and photos to a collaborative map to help scientists understand marine factors and foster a healthy relationship between humans and the sea.

Highlights
  • Observe marine environments
  • Document coastal habitats and species
  • Report on pollution and infrastructure
  • Add photos and data to a collaborative map
  • Interact with the user community
  • Build an environment notebook
Features
Read full description

With COSEA you can observe your marine environment, document coastal habitats or species, do activities, and report on pollution, infrastructure, and the blue economy. COSEA is a collaborative, participatory, and community-driven project. With your contributions on the map and your activity in the app, you help scientists better understand the impacts and drivers of marine factors to protect and foster healthy relationship between humans and our seas. What can you do? In COSEA you can add your photos and data, aka "Spots, on the map. By submitting your observations and documentation, you can build up an environment notebook in your user profile and map your area. You can also interact, comment, and exchange with others in the user community, or simply respond to the contribution of a friend in the app with a heart & like. We all share a deep care for our seas and their resilience in changing times. With COSEA you can help strengthen a healthy relationship between humans and our oceans and learn more about marine protection, social impacts and sustainable use of natural resources. Open Project COSEA is an open project. We invite actors, stakeholders, environment groups, associations, youth projects, and others to co-use the COSEA App for observations, data collection, and community building. During the course of the projects, we will build innovative tools for you to enable independent and self-governed usage of COSEA for your marine and coastal activities. The COSEA App is running on the SPOTTERON Citizen Science Platform at www.spotteron.net

Screenshots

MARINElife4 screens
COSEA4 screens

Verdict

The call

The clearest difference is update cadence: MARINElife at daily against COSEA's every 5 weeks. COSEA's advantage is iOS requirement (12.0 vs 15.5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MARINElife ships an update daily, COSEA every 5 weeks. The most recent releases landed on May 16, 2026 and August 14, 2026 respectively.

Scorecard2 real differences · 7 level
MARINElife versus COSEA: the parameters behind the verdict, then further details
ParameterMARINElifeCOSEA
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyDaily — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.512.0 — better
Further details — not scored
Size7 MB206 MB
Age rating4+4+
DeveloperDaniel AllsoppSPOTTERON Gmbh

In-app purchases

None

MARINElife

No in-app purchases

None

COSEA

No in-app purchases

Questions

Is MARINElife free?
MARINElife is free to download, with no in-app purchases.
Is COSEA free?
COSEA is free to download, with no in-app purchases.
Do MARINElife or COSEA have ads?
Neither MARINElife nor COSEA shows ads.
Which is updated more often, MARINElife or COSEA?
MARINElife ships an update daily, and COSEA every 5 weeks. Most recently, MARINElife was updated on May 16, 2026 and COSEA on August 14, 2026.

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