Comparison

MOBROG vs SMELLiT

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

Head to head
About

MOBROG

Share your opinions and earn money by participating in online surveys. Get rewarded for your insights with various redemption options. Join a global community and make a difference.

Highlights
  • Participate in online surveys
  • Earn money for opinions
  • Diverse survey topics
  • Flexible participation
  • Multiple reward options
  • Privacy protection
Features
Read full description

Earn rewards with surveys and games! MOBROG is a survey panel operating in 74 countries. Run by Splendid Research from Germany based in Hamburg. With our app and website, you can share your opinion, help shape the future and earn money – anytime, anywhere. Thanks to our various global partners, we always have a wide range of suitable surveys for you. For short surveys, we pay an average of between $0.50 and $3. To earn more, you can invite friends or take part in competitions. To ensure your data is secure with us, your survey responses are anonymised through the use of data encryption and security protocols. We guarantee high standards by ensuring the ICC/ESOMAR International Code of Market and Social Research. With MOBROG Arcade, you can have fun playing games and earn rewards. You’ll find a variety of changing games where you receive rewards in your MOBROG account upon reaching certain levels. Get paid easily and conveniently! You can withdraw your money from as little as $5. We offer various options for this. You can use digital wallets such as PayPal or Skrill, choose from various vouchers, make a bank transfer, or even plant trees. Payout options may vary depending on the payment provider or due to restrictions in the respective countries. It’s that easy to get started! Download the app with no obligation. Sign up, and you can start earning rewards by completing surveys or reaching new levels by playing games. Fill out your profile to receive surveys that are right for you. Once you’ve registered, you can also log in via our website. Everything in one account. Sign up now with no obligation and start earning some extra income!

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
Read full description

SMELLiT is an app behind a collaboration project spanning 4 labs across Europe, the D2Smell project. Funded by the European Research Council, it studies human olfaction where it actually happens - in kitchens, on streets, on buses, in the air you move through all day without thinking about it. Every report you send is something no laboratory could have produced. WHAT YOU DO Four times a day, at random moments, the app asks simple questions: can you smell anything right now? What is it? How long have you been smelling it, and where? Together with the pictures the and the free description of the smell you will provide, this first of its kind database will go a long way helping the olfaction research march forward. The times are random on purpose. The smells you notice when you go looking for them are not the smells that make up our naturalistic daily live. WHAT YOU GET Get paid for taking part in real research. Complete the study and receive a gift voucher by email, with a bonus for finishing all 40 questionnaires. If you would rather your participation simply contribute to the science, you can waive the payment instead. After you finish, an elaborated portfolio of your nose type will be provided: where does YOUR nose fall relative to everyone else? It is not a race, and there are no right answers, so trying to hard will actually hurt your results. Be your true self, and you will find your true nose. :) YOUR DATA The study is approved by the Weizmann Institute of Science Institutional Review Board. You read and accept a full consent statement before anything is collected. You can find more information in out Privacy Policy statement. LANGUAGES SMELLiT is available in 13 languages: Arabic, Danish, English, French, German, Hebrew, Icelandic, Italian, Japanese, Portuguese, Russian, Spanish and Swedish. Arabic and Hebrew read right to left throughout. Join D2Smell, and use your nose to help discover what the nose knows it knows.

Screenshots

MOBROG4 screens
SMELLiT4 screens

Verdict

The call

The clearest difference is rating: SMELLiT at 4.5 against MOBROG's 3.8. MOBROG's advantage is review sentiment (39% vs 0%) and update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads 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

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

SMELLiT holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 113 and 61 respectively. Written reviews complicate that: 39% of MOBROG's written reviews are positive against 0% of SMELLiT's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MOBROG ships an update every 3 weeks, SMELLiT every 2 months. The most recent releases landed on October 8, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
MOBROG versus SMELLiT: the parameters behind the verdict, then further details
ParameterMOBROGSMELLiT
PriceFreeFree
Rating3.8 (113 ratings)4.5 (61 ratings) — better
Positive reviews39.4% of reviews — better0.0% of reviews
Number of ratings113 — better61
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size40 MB67 MB
Age rating4+4+
DeveloperSPLENDID RESEARCH GmbHWeizmann Institute of Science

Customer experience

MOBROG

All ratings113 ratings
Positive67.3%
Neutral8.0%
Negative24.8%
Written reviews94 reviews
Positive39.4%
Neutral9.6%
Negative51.1%

SMELLiT

All ratings61 ratings
Positive85.2%
Neutral3.3%
Negative11.5%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

MOBROG

Reported bugs

13 issues
  • Survey crashes at 99% completion
  • Login credentials not recognized despite correct input
  • Password reset email not received
  • Account suddenly inaccessible with no explanation
  • Email address shows as 'taken' when reregistering
Show 8 more
  • Survey pages show 'already taken' when available
  • Technical terminate errors on mobile devices
  • Survey timeout due to slow internet handling
  • Postcode validation errors during registration
  • App sign-out without user action
  • Survey compatibility issues with mobile browsers
  • Error pages for all surveys
  • Connection errors alternating with invalid credentials

Requested features

10 requests
  • Display survey payment amounts before starting
  • Allow users to decline surveys based on compensation
  • Implement in-app survey completion instead of browser redirect
  • Add ability to delete or refresh survey list
  • Mobile-first website design for surveys
Show 5 more
  • Password recovery option in app
  • Show estimated time more accurately
  • Category selection for survey preferences
  • Feedback option for app experience
  • More frequent survey availability

SMELLiT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

MOBROG

No in-app purchases

None

SMELLiT

No in-app purchases

Questions

Is MOBROG free?
MOBROG is free to download, with no in-app purchases.
Is SMELLiT free?
SMELLiT is free to download, with no in-app purchases.
Which has better reviews, MOBROG or SMELLiT?
SMELLiT is rated higher. MOBROG averages 3.8 out of 5 from 113 ratings, while SMELLiT averages 4.5 from 61 ratings.
Do MOBROG or SMELLiT have ads?
Neither MOBROG nor SMELLiT shows ads.
Which is updated more often, MOBROG or SMELLiT?
MOBROG ships an update every 3 weeks, and SMELLiT every 2 months. Most recently, MOBROG was updated on October 8, 2026 and SMELLiT on September 24, 2026.

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