Eileen vs Memory Developer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eileen
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.
- 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
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Visiting a store with the Eileen app is the fastest and easiest way to earn great rewards while performing quick guided tasks in your local shops. From snapping a photo to counting a product's units on the shelf, you can claim and capture as many active rewards as you'd like during your trip. No product purchases are necessary, earn on your schedule with no commitments, and support your favorite brands in your favorite stores. What to expect when Shopping with Eileen: ~Easy Extra Cash~ You can earn quick cash while shopping in stores you already visit on a weekly and daily basis. Eileen tasks take from 1 to 5 minutes to complete and pay anywhere from $2-$20+ when completed accurately. Payments are usually released within 72 hours and delivered to your bank account through our payment partner. ~Effortless Opportunities~ Eileen tasks are designed to be low-effort, no commitment, and performed if and when you want to earn a little cash. No driving strangers, delivering food, or assembling furniture. Simply snap, scan, count, and submit feedback for brands on the platform and continue your personal shopping trip. ~Explore the Store~ Shopping with Eileen can make your mundane trips to the store a little more exciting. Capture exclusive rewards, discover new brands, and make money without even chaining your favorite cart route. ~Support Brands You Love~ Support brands and categories that you would love to see success. Local favorites, healthy snacks, plant based alternatives, influencer launches, you can contribute to a brands success in sustaining and expanding their presence in your go to shops. We're here to earn your trust and welcome you to our community. Your feedback and engagement is key to our ability to improve and modify our app to make your next shopping trip even more fun and rewarding. New brands and stores are being added soon, and we'll be sure to let you know when more rewards become available in your local shops!
Memory Developer
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.
- Data collection for AI research
- Data organization
- Research project support
- Information gathering
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For Memory Developers collecting data for Sunday's AI research
Screenshots
Verdict
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.
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.
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.
| Parameter | Eileen | Memory Developer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (31 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 52.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 31 — better | 5 |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 86 MB | 18 MB |
| Age rating | 17+ | 17+ |
| Developer | Shop With Eileen | chores.bot |
Customer experience
Eileen
Memory Developer
In-app purchases
Eileen
No in-app purchases
Memory Developer
No in-app purchases









