# WorldData vs Obsera

The clearest difference is rating: Obsera at 5.0 against WorldData's 3.5. Obsera also leads on update cadence (every 5 days vs every 31 months). WorldData's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. Obsera sells 3 in-app purchases, starting at $9.99 per month. WorldData asks for nothing beyond the download.

Obsera holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

WorldData ships an update every 31 months, Obsera every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WorldData | Obsera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/worlddata/id1506365990/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/obsera/id6761337539/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 34 MB | 20 MB |
| Requires iOS | **13.2** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [JUAN GIL](https://appshunter.io/developer/1068656492) | [Cerebra Solutions LLC](https://appshunter.io/developer/1887115648) |

## What reviewers say

### WorldData

[App page](https://appshunter.io/ios/app/worlddata/id1506365990)

Explore global challenges and progress with accessible research and data. Visualize worldwide living conditions and environmental changes. Future updates will include more data on health, energy, and the environment.

**Highlights:** Global problem research, Data visualization, Worldwide living conditions, Environmental changes, Demography data, Future data updates

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

**In-app purchases:** none


### Obsera

[App page](https://appshunter.io/ios/app/obsera/id6761337539)

Gain objective clarity on your social interactions and relationship patterns. Analyze conversations and identify recurring dynamics with a privacy-first approach. Understand your social world better through psychologically-informed insights.

**Highlights:** Multimodal conversation analysis, Relational memory and subject profiles, Psychologically-informed insights, Privacy-first architecture, Relationship pattern tracking, Screenshot analysis for tone and subtext

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Obsera Pro Monthly | $9.99 | per month |
| Obsera Pro Yearly | $89.99 | per year |
| Insight Energy Refill | $9.99 | one-time |


## Frequently asked questions

### Is WorldData free?

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

### Is Obsera free?

Obsera is free to download, with in-app purchases available.

### Which has better reviews, WorldData or Obsera?

Obsera is rated higher. WorldData averages 3.5 out of 5 from 2 ratings, while Obsera averages 5.0 from 3 ratings.

### Do WorldData or Obsera have ads?

Neither WorldData nor Obsera shows ads.

### Which is updated more often, WorldData or Obsera?

WorldData ships an update every 31 months, and Obsera every 5 days. Most recently, WorldData was updated on November 3, 2026 and Obsera on October 31, 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.*