Track everything from your speed to calories burned when going out for a bike ride with AppAnnex's GPS Cycle Computer. We also have a fixed-path tower defense game, and one of the most customizable clock apps you'll ever use.
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.
Tower Defense: Lost Earth ($0.99 → Free, 19.8 MB): Fight off wave after wave of alien creatures in this fixed-path tower defense game from Com2uS. You're able to place units anywhere along your enemy's path by tapping on an open square on the grid. Upgrade units with the resources you earn during battle, and purchase power-ups like additional lives to keep the action going. The game includes four modes, 40 campaign missions, nine towers to choose from, 10 enemy types, four special weapons, five worlds to conquer, and leaderboards via Game Center.
Tower Defense: Lost Earth is available for free for a limited time. It has a 5-star rating with a total of 14898 ratings.
GIF SHOP ($0.99 → Free, 2.8 MB): This animated .gif maker allows you to quickly capture photos, stitch them together, and share your creations. The app includes a free GIF SHOP account, so you can host your animated .gifs. It also includes two loop modes, two export sizes, the ability to adjust loop speed, and the ability to delete unwanted frames.
GIF SHOP is available for free for a limited time. It has a 4-star rating with a total of 99 ratings.
Picnic Wars™ ($0.99 → Free, 81.6 MB): It's an all-out food fight in this physics-based arcade game. Launch either fruit or vegetable ammo at your enemy's towers to bring them crumbling down. You can choose from 23 fruit and veggie ammo varieties, and deploy 12 different kinds of launchers. The game also includes 64 levels, bios for all fruits and veggies, and a variety of power-ups.
Picnic Wars™ is available for free for a limited time. It has a 3.5-star rating with a total of 5 ratings.
LightBomber ($0.99 → Free, 17.9 MB): Create light paintings in the dark with this photography app. Grab anything that lights up, head into a dark place, and then start flailing around and allow LightBomber to capture the moment. Light paintings can be uploaded to the LightBomber community, or you can share your creations via Facebook, Twitter, email, or MMS. The app also includes a vast selection of lights and colors to paint with.
LightBomber is available for free for a limited time. It has a 4.5-star rating with a total of 24 ratings.
GPS Cycle Computer ($1.99 → Free, 9.4 MB): Track all facets of your bike ride with this navigation app. GPS Cycle Computer's intuitive interface allows you to easily monitor your distance, time, speed, elevation, calories burned, and location. You can set personal goals every time you go for a ride, or just coast along to your favorite music. Fill in your personal profile with your weight, height, gender, and age to get more accurate results. The app also includes the ability to share your accomplishments via your favorite social networks, and the ability to export data in GPX, KML, or CSV formats.
GPS Cycle Computer is available for free for a limited time. It has a 4.5-star rating with a total of 18 ratings.
Bobolz ($0.99 → Free, 6.9 MB): A physics-based ball-rolling matching game. Fire balls all over the screen in hopes of getting same-colored ones to crash into each other and disappear from the board. Just pick a colored ball, tap and drag your finger in the direction you want to fire it, and then release to send balls crashing into each other. The game includes 40 levels, an arcade mode, and achievements and leaderboards via Game Center.
Bobolz is available for free for a limited time. It has a 4.5-star rating with a total of 7 ratings.
Heat Sense ($0.99 → Free, 1.1 MB): Brighten up your day with this entertaining and extremely colorful app. Heat Sense mimics the heat produced by your finger, allowing you to create glowing works of art. The app includes more than 25 color palettes, 39 preset images to start with, 39 stamps to choose from, a variety of additional effects, and customizable decay rate, finger size, and finger temperature.
Heat Sense is available for free for a limited time. It has a 4.5-star rating with a total of 60 ratings.
TikTok (+Alarm) ($0.99 → Free, 47.2 MB): The most customizable clock app you may ever come across. Start off with a basic analog or digital clock design, and then customize everything from the background to the clock hands. The app also includes a sleep timer, repeating alarms, local weather information, weekly and monthly calendars, the ability to slide your finger up and down to change screen brightness, and shake to activate the built-in flashlight.
TikTok (+Alarm) is available for free for a limited time. It has a 4.5-star rating with a total of 29 ratings.
Picnic Wars™ HD ($1.99 → Free, 91.6 MB): It's an all-out food fight in this physics-based arcade game. Launch either fruit or vegetable ammo at your enemy's towers to bring them crumbling down. You can choose from 23 fruit and veggie ammo varieties, and deploy 12 different kinds of launchers. The game also includes 64 levels, bios for all fruits and veggies, and a variety of power-ups.
Picnic Wars™ HD is available for free for a limited time. It has a 4.5-star rating with a total of 11 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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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.
