Help a little crab build a home for his mermaid friend in G5's matching game, Hidden Wonders of the Depths. We also have a fast-paced arcade game that will test your reflexes, and an app that allows you to have a look through a virtual window to check the weather.
All app prices are subject to change at any time and without notice regardless of stated free duration. Price changes are solely under the control of the developers.
Sleep Genius Baby: Calming Nap and Sleeping Music for Babies ($1.99 → Free, 14.8 MB): This healthcare app will help your baby fall asleep quicker and sleep deeper. Upon first launch the app will need a few moments to download all of the high fidelity audio. Once complete, you're able to choose from either nap time audio or bed time audio. Both versions can include a sleep timer that can be set down to the minute. The music in Sleep Genius Baby was created by the world's leading experts in neurodevelopment and is played in hospital nurseries throughout the country. The app also includes loads tips for success.
Sleep Genius Baby: Calming Nap and Sleeping Music for Babies is available for free for a limited time. It has a 4-star rating with a total of 22 ratings.
Hidden Wonders of the Depths (Full) ($1.99 → Free, 337.0 MB): Help a pleasant little crab build a fantastic home for his mermaid friend in this matching game from G5. Swipe to match three or more underwater items to complete different objectives before time expires. Mahjong-style mini-games are also thrown into the mix to break up the gameplay. Each completed stage will award you with a new piece of an item for your mermaids home. The game includes 204 stages, 25 levels, bonus content to unlock, and achievements via Game Center.
Hidden Wonders of the Depths (Full) is available for free for a limited time. It has a 3.5-star rating with a total of 8 ratings.
RunPee.com ($0.99 → Free, 21.8 MB): Discover the best time to leave the theater for a bathroom break with this entertainment app. RunPee's movie database is updated the day all big movies are released. Just pick one from the list and you'll be presented with the best possible times to leave along with a overview of what is happening on screen during your brief departure. You're able to set a timer that will vibrate when your pee time is approaching, allowing you to exit freely without disturbing anyone in the theater. The app also includes a built-in flashlight and the ability to change the text size.
RunPee.com is available for free for a limited time. It has a 4-star rating with a total of 215 ratings.
Jake Escapes HD ($1.99 → Free, 133.8 MB): Play as Jake, the world's greatest thief, and take on difficult jobs in this climbing game. Jake needs your help discovering the secret behind an ancient alien artifact known only as the G.R.A.I.L. But Jake isn't the only one after it! Help him outrun secret agents, crime lords, and other fiends by scaling skyscrapers. Just swipe to jump from point to point, and tap on your enemies to have your partner in crime take them out. The game includes two modes, a variety of challenges, and comic-style cutscenes.
Jake Escapes HD is available for free for a limited time. It has a 3.5-star rating with a total of 10 ratings.
RRBBYY ($1.99 → Free, 19.1 MB): This original action puzzler requires you to frantically match colored blocks. You're put in control of a single block that can be switched from red, blue, and yellow with a tap. Drag it into like-colored blocks to remove them from the screen before they fall through the bottom. You also want to avoid ramming into blocks that aren't the same color. String together combos to earn more points and earn health back, and smash into modifiers to unleash them. Remember, the sequence goes red, blue, yellow. Trust me, it'll come in handy. The game also includes achievements and leaderboards via Game Center.
RRBBYY is available for free for a limited time. It has a 4.5-star rating with a total of 27 ratings.
True or False - US Edition ($4.99 → Free, 26.1 MB): Today Only: Receive a set of extra lives worth $5 just by playing a round of True or False before day's end!
True or false: You need to download and play this challenging trivia game right now. True! Test your wits with thousands of interesting facts handpicked for the U.S. The game covers everything from geography and science to film and music. Each round starts you off with a target number of true and false questions that you must get correct before running out of lives. You can also utilize a limited number of passes if you get stuck. Just don't let time expire! The game includes a single-player mode, and a local head-to-head multiplayer mode.
True or False - US Edition is available for free today only (09/16). It has a 4.5-star rating with a total of 216 ratings.
YoWindow ($1.99 → Free, 23.1 MB): Have a look out your window to see what the conditions are like with this fun weather app. You're presented with a quick look at the current time, temperature, and conditions. You can then slide your finger from left to right to scroll time forward and watch as the scene changes to reflect what it will be like later on in the day. The app includes a seven-day forecast, multiple units of measurement, and five scenes to choose from.
YoWindow is available for free for a limited time. It has a 4.5-star rating with a total of 357 ratings.
Hidden Wonders of the Depths HD (Full) ($2.99 → Free, 337.6 MB): Help a pleasant little crab build a fantastic home for his mermaid friend in this matching game from G5. Swipe to match three or more underwater items to complete different objectives before time expires. Mahjong-style mini-games are also thrown into the mix to break up the gameplay. Each completed stage will award you with a new piece of an item for your mermaids home. The game includes 204 stages, 25 levels, bonus content to unlock, and achievements via Game Center.
Hidden Wonders of the Depths HD (Full) is available for free for a limited time. It has a 4.5-star rating with a total of 47 ratings.
Omicron HD ($1.99 → Free, 18.0 MB): Put your reflexes to the test with this fast-paced arcade game. You're presented with a color before each round begins. You must try to tap on the tiles while they are that color to remove them from the board. They won't stay in their same positions for long, so you must be quick about it. Remove all tiles before time expires to move on to the next round. You're able to choose from three different modes, including a same-device multiplayer mode. The game also includes achievements and leaderboards via Game Center.
Omicron HD is available for free for a limited time. It has a 3-star rating with a total of 14 ratings.
That concludes today's issue of Apps Gone Free. If you like staying on top of these daily deals, don't forget to check out our free AppsGoneFree app. 
It provides all the deals each day, and even an archive of past deals that are still active.
Developers:
If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:
- It must have at least a three-star average rating at the time it goes free.
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