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Utilities SDKs in Top 200 Free Android Apps

  1. Gson Gson 138 Apps (69% of Top 200)

    Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of.

    • 130. The Weather Channel - Radar
    • 142. Tinder - Dating & Make Friends
    • 45. Uber - Request a ride
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
  2. Google Guava Google Guava 122 Apps (61% of Top 200)

    Guava is a set of core libraries that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, and more. Guava comes in two flavors; the JRE flavor requires JDK 1.8 or higher, if you need support for JDK 1.7 or Android, use the Android flavor. You can find the Android Guava source in the android directory.

    • 130. The Weather Channel - Radar
    • 142. Tinder - Dating & Make Friends
    • 45. Uber - Request a ride
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
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  4. Glide Glide 107 Apps (54% of Top 200)

    Glide is a fast and efficient open source media management and image loading framework for Android that wraps media decoding, memory and disk caching, and resource pooling into a simple and easy to use interface. Glide includes a flexible API that allows developers to plug in to almost any network stack.

    • 130. The Weather Channel - Radar
    • 142. Tinder - Dating & Make Friends
    • 7. Amazon Shopping
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 32. Expedia: Hotels, Flights & Car
    • 160. Google Docs
  5. Square Okio Square Okio 99 Apps (50% of Top 200)

    • 130. The Weather Channel - Radar
    • 142. Tinder - Dating & Make Friends
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 127. Picsart Photo & Video Editor
  6. Protocol Buffers Protocol Buffers 85 Apps (43% of Top 200)

    Protocol Buffers are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data. The protocol compiler for Protocol Buffers is written in C++ with pre-built binaries only provided for released versions.

    • 142. Tinder - Dating & Make Friends
    • 45. Uber - Request a ride
    • 7. Amazon Shopping
    • 36. Twitter
    • 127. Picsart Photo & Video Editor
    • 32. Expedia: Hotels, Flights & Car
  7. Google Actions Google Actions 85 Apps (43% of Top 200)

    • 142. Tinder - Dating & Make Friends
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 127. Picsart Photo & Video Editor
    • 32. Expedia: Hotels, Flights & Car
    • 63. eBay: The shopping marketplace
  8. ZXing ZXing 79 Apps (40% of Top 200)

    Zxing is a multi-format 1D/2D barcode image processing library. This opensource pluggin even though presently in development mode, still is a great option for developers. The pluggin is optimized with JRprofilerand implemented in Java, with ports to other languages

    • 142. Tinder - Dating & Make Friends
    • 7. Amazon Shopping
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 36. Twitter
    • 30. Elevate - Brain Training Games
    • 127. Picsart Photo & Video Editor
  9. Square Picasso Square Picasso 56 Apps (28% of Top 200)

    Picasso is a powerful image downloading and caching library for Android. Picasso allows for hassle-free image loading in your application—often in one line of code!

    • 130. The Weather Channel - Radar
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 30. Elevate - Brain Training Games
    • 127. Picsart Photo & Video Editor
  10. Greenrobot EventBus Greenrobot EventBus 56 Apps (28% of Top 200)

    EventBus is an open-source library for Android and Java using the publisher/subscriber pattern for loose coupling. EventBus enables central communication to decoupled classes with just a few lines of code – simplifying the code, removing dependencies, and speeding up app development.

    • 130. The Weather Channel - Radar
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 36. Twitter
    • 177. ESPN
  11. Square Dagger Square Dagger 53 Apps (27% of Top 200)

    Squares dagger presently deprecated by googles dagger allows you to focus on the interesting classes, declare dependencies, specify how to satisfy them, and ship your app. To contrast, the worst classes in any application are the ones that take up space without doing much at all: the BarcodeDecoderFactory, the CameraServiceLoader, and the MutableContextWrapper. These classes are the clumsy duct tape that wires the interesting stuff together. Dagger is a replacement for these FactoryFactory classes.

    • 130. The Weather Channel - Radar
    • 142. Tinder - Dating & Make Friends
    • 7. Amazon Shopping
    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 63. eBay: The shopping marketplace
  12. DuAd DuAd 49 Apps (25% of Top 200)

    • 130. The Weather Channel - Radar
    • 36. Twitter
    • 127. Picsart Photo & Video Editor
    • 29. Spotify: Music and Podcasts
    • 9. Snapchat
    • 160. Google Docs
  13. FasterXML Jackson FasterXML Jackson 49 Apps (25% of Top 200)

    Jackson is a suite of data-processing tools for Java (and the JVM platform), including the flagship streaming JSON parser / generator library, matching data-binding library (POJOs to and from JSON) and additional data format modules to process data encoded in Avro, BSON, CBOR, CSV, Smile, (Java) Properties, Protobuf, XML or YAML. Jackson suite has two major branches: 1.x is in maintenance mode, and only bug-fix versions are released; 2.x is the actively developed version.

    • 130. The Weather Channel - Radar
    • 7. Amazon Shopping
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 36. Twitter
    • 127. Picsart Photo & Video Editor
    • 29. Spotify: Music and Podcasts
  14. Joda Time Joda Time 40 Apps (20% of Top 200)

    Joda Time provides a quality replacement for the Java date and time classes. The design allows for multiple calendar systems, while still providing a simple API. The 'default' calendar is the ISO8601 standard which is used by XML. In Joda-Time the Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic systems are also included. Supporting classes include time zone, duration, format and parsing.

    • 142. Tinder - Dating & Make Friends
    • 7. Amazon Shopping
    • 32. Expedia: Hotels, Flights & Car
    • 177. ESPN
    • 99. Adobe Acrobat Reader: Edit PDF
    • 42. Booking.com: Hotels and more
  15. Slf4j Slf4j 34 Apps (17% of Top 200)

    • 139. Talking Ben the Dog
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 29. Spotify: Music and Podcasts
    • 177. ESPN
    • 74. Pandora - Music & Podcasts
    • 105. Audible: audiobooks & podcasts
  16. Apache Commons Lang3 Apache Commons Lang3 27 Apps (14% of Top 200)

    Commons Lang provides a host of helper utilities for the java.lang API, notably String manipulation methods, basic numerical methods, object reflection, concurrency, creation and serialization and System properties. Commons Lang contains basic enhancements to java.util.Date and a series of utilities dedicated to help with building methods, such as hashCode, toString and equals.

    • 7. Amazon Shopping
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 127. Picsart Photo & Video Editor
    • 29. Spotify: Music and Podcasts
    • 90. Etsy: Buy & Sell Unique Items
    • 74. Pandora - Music & Podcasts
  17. Apache Commons.io Apache Commons.io 26 Apps (13% of Top 200)

    Commons IO is a library of utilities to assist with developing IO functionality. Commons IO consists of six main areas, namely; Utility classes (with static methods to perform common tasks), Input (useful Input Stream and Reader implementations), Output (useful Output Stream and Writer implementations), Filters (various implementations of file filters), Comparators (various implementations of java.util.Comparator for files), File Monitor (a component for monitoring file system events)

    • 7. Amazon Shopping
    • 127. Picsart Photo & Video Editor
    • 29. Spotify: Music and Podcasts
    • 177. ESPN
    • 74. Pandora - Music & Podcasts
    • 62. Pinterest
  18. Butterknife Butterknife 23 Apps (12% of Top 200)

    Annotate fields with @BindView and a view ID for Butter Knife to find and automatically cast the corresponding view in your layout. Calls to ButterKnife.bind can also be made anywhere you would otherwise put findViewById calls.

    • 142. Tinder - Dating & Make Friends
    • 177. ESPN
    • 106. Airbnb
    • 125. Chase Mobile
    • 43. Roku - Official Remote Control
    • 135. Microsoft Outlook
  19. Apache Commons Codec Apache Commons Codec 22 Apps (11% of Top 200)

    Apache Commons Codec (TM) software provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URLs. Apache commons codec was formed as an attempt to focus development effort on one definitive implementation of the Base64 encoder. At the time of Codec's proposal, there were approximately 34 different Java classes that dealt with Base64 encoding spread over the Foundation's CVS repository.

    • 7. Amazon Shopping
    • 141. ZEDGE™ Wallpapers & Ringtones
    • 90. Etsy: Buy & Sell Unique Items
    • 74. Pandora - Music & Podcasts
    • 62. Pinterest
    • 42. Booking.com: Hotels and more
  20. Chromium Chromium 21 Apps (11% of Top 200)

    • 45. Uber - Request a ride
    • 9. Snapchat
    • 160. Google Docs
    • 63. eBay: The shopping marketplace
    • 62. Pinterest
    • 165. LinkedIn: Jobs & Business News
  21. Android SVG Android SVG 17 Apps (9% of Top 200)

    AndroidSVG is a SVG parser and renderer for Android. It has almost complete support for the static visual elements of the SVG 1.1 and SVG 1.2 Tiny specifications (except for filters). AndroidSVG is licensed under the Apache License v2.0.

    • 36. Twitter
    • 32. Expedia: Hotels, Flights & Car
    • 62. Pinterest
    • 23. PayPal - Send, Shop, Manage
    • 88. Duolingo: language lessons
    • 150. Nextdoor: Your Neighborhood

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