Today’s Apps Gone Free: Astra, BrainWave Study Smart, The Mystery of Blackthorn Castle and More

Help Hemera fight the darkness, improve focus and memory retention, and go out in search of lost treasure with today’s collection of apps and games.

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.

Universal:

BrainWave Study Smart ($0.99 → Free, 94.4 MB): Improve your focus, concentration, and memory retention with BrainWave Study Smart. Students and teachers.

BrainWave Study Smart syncs your brainwaves to specific frequencies to help with cognitive function. You’re able to select from morning, midday, afternoon, evening, and late night programs, and choose a soothing background sound to accompany them. Then hit play and allow the app to sync your brainwaves to the low theta, delta, and beta waves. The app also allows you to adjust the signal intensity and save your settings for later use.

BrainWave Study Smart is available for free for a limited time. It has a 3-star rating with a total of 396 ratings.

BrainWave Binaural Zen ($0.99 → Free, 94.4 MB): Lower stress and improve your problem solving ability by listening to low frequency waves with this health app. Those who want to relax their minds.

BrainWave Zen Meditation offers advanced brainwave entrainment therapy. You’re able to select from morning, afternoon, and evening programs, and choose a soothing background sound to accompany them. Then hit play and allow the app to sync your brainwaves to the deeply relaxing low frequency alpha, theta, and beta waves. The app also allows you to adjust the signal intensity and save your settings for later use.

BrainWave Binaural Zen is available for free for a limited time. It has a 3.5-star rating with a total of 93 ratings.

Astrå ($0.99 → Free, 205.7 MB): Help Hemera fight the darkness in Astra. Those who enjoy platformers.

Astra provides a whimsical experience that can be enjoyed by gamers of all ages. You’re put in control of Hemera, the goddess of daylight. You must help her fight the darkness by traveling across the universe collecting daylight. Tap to leap into the air and over your enemies, and tap again to break free from gravity and reach other planets. You’re also able to slow down your descent with a tap and hold. The game includes 32 levels to explore, and two difficulty settings.

Astrå is available for free for a limited time. It has a 4-star rating with a total of 43 ratings.

The Mystery of Blackthorn Castle ($2.99 → Free, 112.1 MB): Go out in search of lost treasure in Blackthorn Castle. Fans of classic point and click adventure games.

Uncle Henry is back at it again. This time he needs you and your newly acquired archeology skills to help him track down a mysterious artifact known to be hidden in the Castle Blackthorn in England. To find the long lost treasure you must pick the correct paths, solve puzzles, and search through old structures with just a tap. A built-in hint system will assist you when you’re stuck, and a dynamic map will ensure you won’t simply go running around in circles.

The Mystery of Blackthorn Castle is available for free for a limited time. It has a 5-star rating with a total of 420 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.
The app must not have been free numerous times (3+) over the last six months.
The free version of your app must not include ads.

To submit an app, simply send a request to tyler@appadvice.com with the subject “Apps Gone Free.” Please include the name of the app, a link to it in the App Store, when and for how long you intend to offer the app for free, and anything else you would like to share. We will take it from there.