# Anecdata.org vs Coastal Observer | SPOTTERON

The clearest difference is update cadence: Anecdata.org at every 3 weeks against Coastal Observer | SPOTTERON's every 4 months. Anecdata.org also leads on rating (5.0 vs 4.7). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Anecdata.org holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 4 and 10 respectively.

Anecdata.org ships an update every 3 weeks, Coastal Observer | SPOTTERON every 4 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Anecdata.org | Coastal Observer | SPOTTERON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/anecdataorg/id1315666791/reviews)** | [4.7 (10 ratings)](https://appshunter.io/ios/app/coastal-observer-spotteron/id1475663669/reviews) |
| Number of ratings | 4 | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 47 MB | 62 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MDI Biological Laboratory](https://appshunter.io/developer/1210127056) | [SPOTTERON Gmbh](https://appshunter.io/developer/1378099707) |

## What reviewers say

### Anecdata.org

[App page](https://appshunter.io/ios/app/anecdataorg/id1315666791)

This platform empowers users to create, manage, and participate in citizen science projects. It facilitates data collection in the field, even offline, and supports project analysis and download.

**Highlights:** Project creation and management, Datasheet design, Participant invitation, Offline data collection, Data download and analysis

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Coastal Observer | SPOTTERON

[App page](https://appshunter.io/ios/app/coastal-observer-spotteron/id1475663669)

This app empowers citizens to monitor local weather and water conditions, contributing to climate change research. Users can document environmental observations, weather impacts, water levels, and water quality to help build a sustainable future.

**Highlights:** Environmental observations, Weather documentation, Water level measurement, Water quality monitoring, Photo documentation, Educational curriculum integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Anecdata.org free?

Anecdata.org is free to download, with no in-app purchases.

### Is Coastal Observer | SPOTTERON free?

Coastal Observer | SPOTTERON is free to download, with no in-app purchases.

### Which has better reviews, Anecdata.org or Coastal Observer | SPOTTERON?

Anecdata.org is rated higher. Anecdata.org averages 5.0 out of 5 from 4 ratings, while Coastal Observer | SPOTTERON averages 4.7 from 10 ratings.

### Do Anecdata.org or Coastal Observer | SPOTTERON have ads?

Neither Anecdata.org nor Coastal Observer | SPOTTERON shows ads.

### Which is updated more often, Anecdata.org or Coastal Observer | SPOTTERON?

Anecdata.org ships an update every 3 weeks, and Coastal Observer | SPOTTERON every 4 months. Most recently, Anecdata.org was updated on October 9, 2026 and Coastal Observer | SPOTTERON on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*