@INPROCEEDINGS{Saborido17-ICPC-AndroidAds,
   AUTHOR       = {Rub�n Saborido and Foutse Khomh and Giuliano Antoniol and 
      Yann-Ga�l Gu�h�neuc},
   BOOKTITLE    = {Proceedings of the 25<sup>th</sup> International Conference on Program Comprehension (ICPC)},
   TITLE        = {Comprehension of Ads-supported and Paid Android 
      Applications: Are They Different?},
   YEAR         = {2017},
   OPTADDRESS   = {},
   OPTCROSSREF  = {},
   EDITOR       = {David Lo and Alexander Serebrenik},
   MONTH        = {May},
   NOTE         = {10 pages.},
   OPTNUMBER    = {},
   OPTORGANIZATION = {},
   PAGES        = {143--153},
   PUBLISHER    = {IEEE CS Press},
   OPTSERIES    = {},
   OPTVOLUME    = {},
   KEYWORDS     = {Topic: <b>Program comprehension</b>, Venue: <c>ICPC</c>},
   URL          = {http://www.ptidej.net/publications/documents/ICPC17.doc.pdf},
   PDF          = {http://www.ptidej.net/publications/documents/ICPC17.ppt.pdf},
   ABSTRACT     = {The Android market is a place where developers offer 
      paid and-or free apps to users. Free apps are interesting to users 
      because they can try them immediately without incurring a monetary 
      cost. However, free apps often have limited features and-or contain 
      ads when compared to their paid counterparts. Thus, users may 
      eventually need to pay to get additional features and-or remove ads. 
      While paid apps have clear market values, their ads-supported 
      versions are not entirely free because ads have an impact on 
      performance. In this paper, first, we perform an exploratory study 
      about ads-supported and paid apps to understand their differences in 
      terms of implementation and development process. We analyze 40 
      Android apps and we observe that (i) ads-supported apps are preferred 
      by users although paid apps have a better rating, (ii) developers do 
      not usually offer a paid app without a corresponding free version, 
      (iii) ads-supported apps usually have more releases and are released 
      more often than their corresponding paid versions, (iv) there is no a 
      clear strategy about the way developers set prices of paid apps, (v) 
      paid apps do not usually include more functionalities than their 
      corresponding ads-supported versions, (vi) developers do not always 
      remove ad networks in paid versions of their ads-supported apps, and 
      (vii) paid apps require less permissions than ads-supported apps. 
      Second, we carry out an experimental study to compare the performance 
      of ads-supported and paid apps and we propose four equations to 
      estimate the cost of ads-supported apps. We obtain that (i) 
      ads-supported apps use more resources than their corresponding paid 
      versions with statistically significant differences and (ii) paid 
      apps could be considered a most cost-effective choice for users 
      because their cost can be amortized in a short period of time, 
      depending on their usage.}
}

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Free apps are interesting to users because they can try them immediately without incurring a monetary cost. However, free apps often have limited features and-or contain ads when compared to their paid counterparts. Thus, users may eventually need to pay to get additional features and-or remove ads. While paid apps have clear market values, their ads-supported versions are not entirely free because ads have an impact on performance. In this paper, first, we perform an exploratory study about ads-supported and paid apps to understand their differences in terms of implementation and development process. We analyze 40 Android apps and we observe that (i) ads-supported apps are preferred by users although paid apps have a better rating, (ii) developers do not usually offer a paid app without a corresponding free version, (iii) ads-supported apps usually have more releases and are released more often than their corresponding paid versions, (iv) there is no a clear strategy about the way developers set prices of paid apps, (v) paid apps do not usually include more functionalities than their corresponding ads-supported versions, (vi) developers do not always remove ad networks in paid versions of their ads-supported apps, and (vii) paid apps require less permissions than ads-supported apps. Second, we carry out an experimental study to compare the performance of ads-supported and paid apps and we propose four equations to estimate the cost of ads-supported apps. We obtain that (i) ads-supported apps use more resources than their corresponding paid versions with statistically significant differences and (ii) paid apps could be considered a most cost-effective choice for users because their cost can be amortized in a short period of time, depending on their usage.","bibtex":"@INPROCEEDINGS{Saborido17-ICPC-AndroidAds,\r\n AUTHOR = {Rub�n Saborido and Foutse Khomh and Giuliano Antoniol and \r\n Yann-Ga�l Gu�h�neuc},\r\n BOOKTITLE = {Proceedings of the 25^th International Conference on Program Comprehension (ICPC)},\r\n TITLE = {Comprehension of Ads-supported and Paid Android \r\n Applications: Are They Different?},\r\n YEAR = {2017},\r\n OPTADDRESS = {},\r\n OPTCROSSREF = {},\r\n EDITOR = {David Lo and Alexander Serebrenik},\r\n MONTH = {May},\r\n NOTE = {10 pages.},\r\n OPTNUMBER = {},\r\n OPTORGANIZATION = {},\r\n PAGES = {143--153},\r\n PUBLISHER = {IEEE CS Press},\r\n OPTSERIES = {},\r\n OPTVOLUME = {},\r\n KEYWORDS = {Topic: <b>Program comprehension</b>, Venue: <c>ICPC</c>},\r\n URL = {http://www.ptidej.net/publications/documents/ICPC17.doc.pdf},\r\n PDF = {http://www.ptidej.net/publications/documents/ICPC17.ppt.pdf},\r\n ABSTRACT = {The Android market is a place where developers offer \r\n paid and-or free apps to users. Free apps are interesting to users \r\n because they can try them immediately without incurring a monetary \r\n cost. However, free apps often have limited features and-or contain \r\n ads when compared to their paid counterparts. Thus, users may \r\n eventually need to pay to get additional features and-or remove ads. \r\n While paid apps have clear market values, their ads-supported \r\n versions are not entirely free because ads have an impact on \r\n performance. In this paper, first, we perform an exploratory study \r\n about ads-supported and paid apps to understand their differences in \r\n terms of implementation and development process. We analyze 40 \r\n Android apps and we observe that (i) ads-supported apps are preferred \r\n by users although paid apps have a better rating, (ii) developers do \r\n not usually offer a paid app without a corresponding free version, \r\n (iii) ads-supported apps usually have more releases and are released \r\n more often than their corresponding paid versions, (iv) there is no a \r\n clear strategy about the way developers set prices of paid apps, (v) \r\n paid apps do not usually include more functionalities than their \r\n corresponding ads-supported versions, (vi) developers do not always \r\n remove ad networks in paid versions of their ads-supported apps, and \r\n (vii) paid apps require less permissions than ads-supported apps. \r\n Second, we carry out an experimental study to compare the performance \r\n of ads-supported and paid apps and we propose four equations to \r\n estimate the cost of ads-supported apps. We obtain that (i) \r\n ads-supported apps use more resources than their corresponding paid \r\n versions with statistically significant differences and (ii) paid \r\n apps could be considered a most cost-effective choice for users \r\n because their cost can be amortized in a short period of time, \r\n depending on their usage.}\r\n}\r\n\r\n","author_short":["Saborido, R.","Khomh, F.","Antoniol, G.","Gu�h�neuc, Y."],"editor_short":["Lo, D.","Serebrenik, A."],"key":"Saborido17-ICPC-AndroidAds","id":"Saborido17-ICPC-AndroidAds","bibbaseid":"saborido-khomh-antoniol-guhneuc-comprehensionofadssupportedandpaidandroidapplicationsaretheydifferent-2017","role":"author","urls":{"Paper":"http://www.ptidej.net/publications/documents/ICPC17.doc.pdf"},"keyword":["Topic: <b>Program comprehension</b>","Venue: <c>ICPC</c>"],"metadata":{"authorlinks":{"gu�h�neuc, y":"https://bibbase.org/show?bib=http%3A%2F%2Fwww.yann-gael.gueheneuc.net%2FWork%2FPublications%2FBiblio%2Fcomplete-bibliography.bib&msg=embed","guéhéneuc, y":"https://bibbase.org/show?bib=http://www.yann-gael.gueheneuc.net/Work/BibBase/guehene%20(automatically%20cleaned).bib"}},"downloads":0},"search_terms":["comprehension","ads","supported","paid","android","applications","different","saborido","khomh","antoniol","gu�h�neuc"],"keywords":["topic: <b>program comprehension</b>","venue: <c>icpc</c>"],"authorIDs":["AfJhKcg96muyPdu7S","xkviMnkrGBneANvMr"],"dataSources":["Sed98LbBeGaXxenrM","8vn5MSGYWB4fAx9Z4"]}