Today’s List of Paid Apps That Are Free or on Sale at the Play Store

Loads of apps this week. Some interesting ones too.

Speccy ? Spectrum Analyzer ($0.99 -> free for five days)


Turn your phone into a Spectrum Analyzer. Speccy is an Audio Spectrum Analysis tool, which visualizes the spread of sound frequencies in the audible (and inaudible) spectrum, detected through your device's microphone, using Fast Fourier Transform signal processing. It supports the most languages of any similar app (English, Spanish, Portuguese, Polish, German, Italian, Russian, French and Thai - with more languages added regularly) and is the only app on the market which also lets you export audio snapshot data to the clipboard (for plotting in Excel, etc).

Download Speccy ? Spectrum Analyzer

SMM Friendships (twitter) ($0.99 -> Free for four days)

login with twitter see who follows who see twitter interactions support for 14+ languages

Download SMM Friendships (twitter)

Triathlon Calculator: Pace for Swim/Bike/Run $0.99 -> Free for a day)


Triathlon Calculator is an pace calculator designed for triathletes by triathletes. It will perform a lot of the calculations that we tend to need across all 3 disciplines of triathlon and adds up all times including transitions to give the finish time.

Select your race distance; Sprint Triathlon, Standard Triathlon, Middle Distance Triathlon / Ironman 70.3 or Long Distance Triathlon / Ironman. Move between the tabs and set your target speed or time for swim, bike, run and transitions. Result data updates as you type. You can also update any of the distances to customize your triathlon.

Download Triathlon Calculator: Pace for Swim/Bike/Run

Geometry Calculator ($3.95 -> $1.99 for seven days)


Calculates plane and solid figures:
Triangle, square, rectangle, parallelogram, rhombus, trapezoid, rectangle, polygon, circle, circle, ellipse.
Sphere, cube, box, cylinder, cone, truncated cone, prism, pyramid, truncated pyramid, the octahedron.

For every geometry shape there is step by step math solve solution provided! If you either a schoolkid or an undergraduate this math solver toolkit will be helpful for you!

Download Geometry Calculator

ColEm Deluxe - Coleco Emulator ($3.99 -> $1.99 for six days)


ColEm is a ColecoVision emulator. It runs Coleco games on your Android phone or tablet. Play Coleco games with Bluetooth joysticks, Xperia gaming buttons, Moga gamepad, or iCade joystick. Save game play at any time and restart once you get killed. Record ColecoVision music to MIDI files and use them as ringtones. Play with friends over WiFi or Internet, using NetPlay.

Download ColEm Deluxe - Coleco Emulator

Mobile Observatory - Astronomy ($4.99 -> $0.99 for five days)


Do you want to know if the next lunar eclipse is visible from your location or when the next bright comet is visible? Would you like to be notified by your smart phone next time, Jupiter and the Moon meet in the sky? Do you want to know what the blazing bright object in the evening sky is? Do you want to be always up-to-date which celestial events that are visible from your location? Then this app is a must-have for you!

Mobile Observatory does not only include a live, zoomable sky map which tells you what sky object you are looking at but provides you with loads of detailed extra information on stars, planets, deep sky objects, meteor showers, comets, asteroids, lunar and solar eclipses as well as detailed ephemeris of all included sky objects and an interactive top-down view of the Solar System. All that in just one app!

Download Mobile Observatory - Astronomy

doubleTwist Pro music player (FLAC/ALAC & Gapless) ($7.99 -> $5.59 for five days)

*** Optimized for large screens! *** doubleTwist Pro Lossless Player is the completely revamped premium version of doubleTwist Classic Player. It features a brand new material design UI with multiple themes, 10-band EQ, gapless support, lossless sound with FLAC & ALAC playback, casting support, podcast management and built-in AirSync for syncing your iTunes music to your Android device.

Download doubleTwist Pro music player (FLAC/ALAC & Gapless)

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