Memory Detective vs Sleep Focus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Memory Detective
This app uses AI to analyze your voice and assess potential dementia risk. It's designed for early detection by having you read a sentence, providing a cognitive screening. Remember, it's not a medical device and professional consultation is recommended for any concerns.
- AI voice analysis
- Dementia risk assessment
- Early detection screening
- Cognitive health check
- Based on clinical data
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[Notice] Memory Detective is not a medical device. This test uses AI technology developed and trained in the field of engineering to assess and indicate the potential risk of dementia for the test subject. However, it does not provide any medical diagnosis or judgment. If you believe you need a dementia-related test due to memory decline or other concerns, we recommend visiting a professional institution and consulting with a qualified specialist or expert, regardless of the results of this test. -------------------------------------------------- With advancements in medical science, even dementia, once considered an incurable disease, is showing signs of treatment possibilities. Recently, a drug effective for early-stage dementia was developed and approved by the U.S. FDA, bringing hope to dementia patients and their families. The challenge, however, lies in the fact that the current treatments are effective only for early-stage dementia. * This highlights the critical importance of early diagnosis for dementia. Memory Detective is an app that analyzes users’ voices using AI algorithms. By simply reading a sentence displayed on the app, the AI helps assess the potential risk of dementia. With Memory Detective, you can easily and regularly check your brain health and detect potential dementia early! -------------------------------------------------- About Memory Detective Memory Detective is an AI-based cognitive screening service developed using clinically collected and diagnosed voice data from major university hospitals in Korea. Based on validation using this clinical dataset: ① 85% accuracy in detecting dementia ② 83% accuracy in detecting mild cognitive impairment (MCI)
Sleep Focus
This app helps you reclaim your sleep by locking distracting applications during your chosen bedtime and wake-up times. It uses your device's built-in screen time features to enforce the schedule, ensuring you stay off your phone until morning. Calls and texts remain accessible for emergencies.
- Locks distracting apps during set sleep window
- Automatic unlock at wake time
- Uses Apple's Screen Time for robust locking
- Calls and texts remain accessible
- Optional one-time purchase for early unlock
- No account or sign-up required
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Put the phone to bed, and get your sleep back. Sleep Focus locks distracting apps from the bedtime you pick until the wake time you pick — and unlocks them by itself, free, every morning. "Just five more minutes" keeps turning into 2 a.m.? Sleep Focus swaps willpower for a simple system. You set a sleep window once, and your apps rest while you do. WHAT IT DOES Locks from bedtime to wake time - Pick a bedtime and a wake time. That's the whole setup. - Distracting apps stop opening for the window you chose. - Sleep Focus blocks broadly rather than app by app, so there's no per-app picker to fuss with at bedtime. - Built on Apple's Screen Time (Family Controls), so the lock holds. A free unlock every morning - At your wake time the lock ends automatically. - No payment, no conditions, no button to press. Every single day. - A single lock runs between 1 and 12 hours and never longer, so morning always arrives. Calls and texts are never locked - Calls, texts and emergency dialing keep working the whole time. - You stay reachable for the people and the moments that matter. The schedule is fixed once the lock starts - After bedtime you can't move the times until morning. - That's the whole point: 1 a.m. you doesn't get to overrule 10 p.m. you. Early unlock, if you truly need it (optional) - Something urgent came up? A small one-time purchase ends tonight's lock right away. - It's a consumable in-app purchase, not a subscription, and the price is shown before you buy. - It works as a speed bump — "is this worth paying for?" is a surprisingly good question at 1 a.m. PLEASE READ THIS BEFORE YOU INSTALL Sleep Focus is a self-control tool that you set up yourself. It never holds your phone hostage. - The lock only ever runs during the window you set yourself. - At your wake time it unlocks automatically, at no cost. - Turning off the Screen Time permission in iOS Settings, or deleting the app, ends the lock at any time. - The paid early unlock is optional and is never required to get out. WHO IT'S FOR - You keep doomscrolling short videos and social feeds long past bedtime - Your sleep keeps getting shorter because your phone is in your hand - Willpower on its own hasn't worked and you want something with teeth - You're building a steadier sleep routine, or a real digital detox - You want less screen time at night without policing yourself all evening GOOD TO KNOW - Requires iOS 16 or later. - App locking uses Apple's Screen Time (Family Controls) permission, which you grant yourself during setup. - Notifications are used to bring you back to Sleep Focus from a locked app. - Sleep Focus does not measure or track your sleep. It just gets the phone out of your hands so you can. - No account and no sign-up. QUESTIONS OR FEEDBACK Something not working, or an idea for what's next? Write to jinhom6225@insightmyung.com, or leave a review. Your notes genuinely shape what gets built. Tonight, put the phone to bed first.
Screenshots
Verdict
The clearest difference is ads: Sleep Focus at none against Memory Detective's shown. Sleep Focus also leads on update cadence (every 2 days vs every 4 weeks). On price, rating, ratings volume and in-app purchases 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. Memory Detective sells 8 one-off in-app purchases and Sleep Focus sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Memory Detective against 5.0 for Sleep Focus. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Memory Detective ships an update every 4 weeks, Sleep Focus every 2 days. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.
| Parameter | Memory Detective | Sleep Focus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 56 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | BAMBOL Inc. | Insight&myung, LLC |
Customer experience
Memory Detective
Sleep Focus
In-app purchases
Memory Detective
- Memory Detective Use Pass$1.00
- Memory Detective Gift Pass$1.00
- Memory Detective Use Pass$10.00
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- Memory Detective Gift Pass$10.00
- Memory Detective Use Pass$20.00
- Memory Detective Gift Pass$20.00
- Memory Detective Use Pass$30.00
- Memory Detective Gift Pass$30.00
Sleep Focus
- 일찍 풀기$0.99
- 일찍 풀기2$1.99








