# Eileen vs Memory Developer

The clearest difference is review sentiment: Eileen at 53% against Memory Developer's 0%. Eileen also leads on update cadence (fortnightly vs every 3 months) and ratings volume (31 vs 5). Memory Developer's advantage is rating (5.0 vs 3.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Memory Developer holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Eileen has 31 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 53% of Eileen's written reviews are positive against 0% of Memory Developer's, so the app with the better star average is not the one people write more warmly about.

Eileen ships an update fortnightly, Memory Developer every 3 months. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Eileen | Memory Developer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (31 ratings)](https://appshunter.io/ios/app/eileen/id6504560653/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/memory-developer/id6504975314/reviews)** |
| Number of ratings | **31** | 5 |
| Positive reviews | **52.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | Free |
| Size | 86 MB | 18 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Shop With Eileen](https://appshunter.io/developer/1752859487) | [chores.bot](https://appshunter.io/developer/1754056159) |

## What reviewers say

### Eileen

[App page](https://appshunter.io/ios/app/eileen/id6504560653)

Earn cash rewards by completing simple tasks in retail stores. Tasks involve activities like taking photos or counting products, taking only a few minutes to complete. Payments are processed quickly and deposited directly into your bank account.

**Highlights:** Earn cash rewards in stores, Complete quick guided tasks, Tasks take 1-5 minutes, Payments within 72 hours, No product purchases required, Flexible, no-commitment tasks

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

**In-app purchases:** none


### Memory Developer

[App page](https://appshunter.io/ios/app/memory-developer/id6504975314)

This app is designed for individuals involved in AI research, specifically for collecting and organizing data. It facilitates the process of gathering information required for research projects, ensuring data is ready for analysis.

**Highlights:** Data collection for AI research, Data organization, Research project support, Information gathering

**In-app purchases:** none


## Frequently asked questions

### Is Eileen free?

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

### Is Memory Developer free?

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

### Which has better reviews, Eileen or Memory Developer?

Memory Developer is rated higher. Eileen averages 3.4 out of 5 from 31 ratings, while Memory Developer averages 5.0 from 5 ratings.

### Do Eileen or Memory Developer have ads?

Neither Eileen nor Memory Developer shows ads.

### Which is updated more often, Eileen or Memory Developer?

Eileen ships an update fortnightly, and Memory Developer every 3 months. Most recently, Eileen was updated on October 5, 2026 and Memory Developer on September 29, 2026.

---

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