Comparison

SMELLiT vs 캐시드릴

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

Head to head
About

SMELLiT

Participate in scientific research about the human sense of smell. Log daily scents and learn about olfaction. Earn rewards for consistent participation in this research project.

Highlights
  • Log daily scents
  • Learn about olfaction
  • Participate in research
  • Earn rewards
  • Randomized questionnaires
Features
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SMELLiT asks what you smell, four times a day. It is the research app of d2smell, an international collaboration of four labs. The project is funded by the European Research Council and studies what people actually smell in everyday life. Every answer you send is something no laboratory could have produced. WHAT YOU DO At random times within your waking hours, you get a notification. You have 15 minutes to open it. Then answer a few short questions about what you’re smelling right now: describe it, rate it, say where you are and take a quick photo without people in it. Smelling nothing? We still want to hear from you! The times are random on purpose. The smells you notice when you go looking for them are not the smells that make up our daily life. The study is 40 questionnaires, spread over about 10 days (longer if you miss some). WHAT YOU GET Get paid with a gift card by email, with a bonus for finishing all 40. You can also waive the payment as a donation to science. You can stop at any time. When you have completed all 40, you will see your own smell story. There are no right answers, so trying too hard will actually hurt your results. Be yourself, and you will find your true nose. WHO CAN TAKE PART Adults with a normal sense of smell, using one phone for the whole study. You sign up with your mobile number. Recruitment is open in selected countries, and the app tells you if yours is not one of them. YOUR DATA The study is approved by the Weizmann Institute of Science Institutional Review Board. You read and accept a consent statement before anything is collected. No ads and no ad tracking. More in our privacy policy. Join d2smell, and use your nose to help discover what the nose knows it knows.

About

캐시드릴

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충전기만 꽂으면 자동으로 조각이 채굴됩니다. - 10분마다 조각 1개 자동 적립 - 조각 10개로 원석 제작 - 원석 정제로 현금 전환 충전하면서 잠들어도, 일하면서 방치해도 OK. 하루 최대 100조각까지 채굴할 수 있어요. 친구 초대하면 보너스 조각도 받을 수 있습니다!

Screenshots

SMELLiT4 screens
캐시드릴4 screens

Verdict

The call

The clearest difference is review sentiment: 캐시드릴 at 97% against SMELLiT's 0%. 캐시드릴 also leads on rating (4.9 vs 4.5) and update cadence (every 4 days vs monthly). SMELLiT's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

캐시드릴 holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 60 and 140 respectively. Written reviews point the same way: 0% of SMELLiT's written reviews are positive against 97% of 캐시드릴's.

UpkeepUpdate frequency

SMELLiT ships an update monthly, 캐시드릴 every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
SMELLiT versus 캐시드릴: the parameters behind the verdict, then further details
ParameterSMELLiT캐시드릴
PriceFreeFree
Rating4.5 (60 ratings)4.9 (140 ratings) — better
Positive reviews0.0% of reviews97.2% of reviews — better
Number of ratings60140 — better
Update frequencyMonthlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size71 MB97 MB
Age rating4+4+
DeveloperWeizmann Institute of Scienceeunyeol you

Customer experience

SMELLiT

All ratings60 ratings
Positive85.0%
Neutral3.3%
Negative11.7%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

캐시드릴

All ratings140 ratings
Positive97.9%
Neutral2.1%
Negative0.0%
Written reviews71 reviews
Positive97.2%
Neutral2.8%
Negative0.0%

In-app purchases

None

SMELLiT

No in-app purchases

None

캐시드릴

No in-app purchases

Questions

Is SMELLiT free?
SMELLiT is free to download, with no in-app purchases.
Is 캐시드릴 free?
캐시드릴 is free to download, with no in-app purchases.
Which has better reviews, SMELLiT or 캐시드릴?
캐시드릴 is rated higher. SMELLiT averages 4.5 out of 5 from 60 ratings, while 캐시드릴 averages 4.9 from 140 ratings.
Do SMELLiT or 캐시드릴 have ads?
캐시드릴 shows ads; SMELLiT does not.
Which is updated more often, SMELLiT or 캐시드릴?
SMELLiT ships an update monthly, and 캐시드릴 every 4 days. Most recently, SMELLiT was updated on October 30, 2026 and 캐시드릴 on October 31, 2026.

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