SMELLiT vs 캐시드릴
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Log daily scents
- Learn about olfaction
- Participate in research
- Earn rewards
- Randomized questionnaires
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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.
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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
SMELLiT ships an update monthly, 캐시드릴 every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | SMELLiT | 캐시드릴 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (60 ratings) | 4.9 (140 ratings) — better |
| Positive reviews | 0.0% of reviews | 97.2% of reviews — better |
| Number of ratings | 60 | 140 — better |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 71 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Weizmann Institute of Science | eunyeol you |
Customer experience
SMELLiT
캐시드릴
In-app purchases
SMELLiT
No in-app purchases
캐시드릴
No in-app purchases









