Comparison

Memory Detective vs while you were sleeping

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • AI voice analysis
  • Dementia risk assessment
  • Early detection screening
  • Cognitive health check
  • Based on clinical data
Features
Read full description

[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)

About

while you were sleeping

Features
Read full description

언제 잠들었는지, 몇 시간 동안 잠을 잤는지 데이터 기반으로 나의 수면을 확인하고, 개선으로 이어지도록 도와주는 하루하루 나의 수면을 변화시키는 챌린지에 도전하세요

Screenshots

Memory Detective4 screens
while you were sleeping4 screens

Verdict

The call

The clearest difference is in-app purchases: while you were sleeping at none against Memory Detective's 8. while you were sleeping also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Memory Detective sells 8 one-off in-app purchases. while you were sleeping asks for nothing beyond the download.

UpkeepUpdate frequency

Memory Detective ships an update every 2 weeks, while you were sleeping weekly. The most recent releases landed on June 6, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 7 level
Memory Detective versus while you were sleeping: the parameters behind the verdict, then further details
ParameterMemory Detectivewhile you were sleeping
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size38 MB304 MB
Age rating12+4+
DeveloperBAMBOL Inc.(주)허니냅스 (Honeynaps Co., Ltd.)

In-app purchases

8 purchases

Memory Detective

One-time8
  • Memory Detective Use Pass$1.00
  • Memory Detective Gift Pass$1.00
  • Memory Detective Use Pass$10.00
Show 5 more
  • 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
None

while you were sleeping

No in-app purchases

Questions

Is Memory Detective free?
Memory Detective is free to download, with in-app purchases available.
Is while you were sleeping free?
while you were sleeping is free to download, with no in-app purchases.
Do Memory Detective or while you were sleeping have ads?
Memory Detective shows ads; while you were sleeping does not.
Which is updated more often, Memory Detective or while you were sleeping?
Memory Detective ships an update every 2 weeks, and while you were sleeping weekly. Most recently, Memory Detective was updated on June 6, 2026 and while you were sleeping on September 15, 2026.

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