Calcbot, by Tapbots, is an easy to use calculator and unit converter. Recently, Tapbots updated the app and is now offering it for free.

The Calcbot 2 update includes style themes to customize your calculator, as well as a new favorites system, the ability to sync your history tape and constants across iOS devices, and an in-app purchase that lets you convert with over 500 units across 22 categories. The app has also been upgraded to work with iOS 8 to make for a smoother experience.

There are a bunch more additions (haha calculator jokes), so check out the newly free Calcbot on the App Store.

Fog Creek Software has updated their organizational notice board, Trello with a ton of new stuff. Trello can now share photos, videos, URLs, and more without having to actually open the app. The update also comes with a newly designed home screen, the Today widget that lets you create Trello cards from your calendar, and a whole lot more.

You can download Trello for free and start organizing your life today.

Gameloft is releasing a new tycoon war game, called Age of Sparta. You'll need to convince men and gods to work together to fend off the armies Xerxes and protect Greece.

The game gives you a wide variety of buildings that produce items, population, or military - including Infantry, air, and god units. it also allows you to attack or ally with other players around the world and compete against them on the leader boards. To buy items, units, and buildings you'll need to create a steady source of coins and faith, but if you can't wait you'll be able to purchase gems or gain them in quests to skip wait times and buy premium items.

You'll be able to download Age of Sparta very soon.

Noodlecake has announced that they've partnered with Finnish indie husband and wife duo Jyri and Piia Kilpelainen in order to help bring their 'difficult but addictive' twitch high score game Tiltagon to the App Store.

Dubbed "the Super Hexagon of tilt games," the high score chaser will come with two modes (Hard and Hard+), with the goal being to keep your ball on the platform and collect cubes while ensuring that you don't plunge to your doom.

Tiltagon is expected to lean its way into the App Store sometime in March.

Rovio Entertainment has released a new match-3 game called Jolly Jam - where you'll play as Prince Jam as you try to save Princess Honey and the Jelly Kingdom from the evil boss.

The game is delightfully adorable with its cute characters and bright graphics. It offers hundreds of levels, epic combo attacks, and an adventure across the Jelly Kingdom from Lemonade Lake to the Chocolate Mountains. It also features a new mechanic to match-3 games that lets you draw a box around matching jellies to complete levels.

You can download Jolly Jam for free on the App Store.

Liber Primus Games has announced they will be releasing the next chapter of their action-adventure story, Narborion Saga Book II: The God of Orcs in March.

The story, written by Sylvia Finali and Dr Tom Pollak (former editor-in-chief of Dragon magazine), will remain in the fantasy genre but will use a whole new game engine called SagaScribe. This will let readers have more customizable options and features. Players will also be able to scan an image of their table top figurine into the game and have more options for character creation, spell crafting and arena fight training.

There's a lot to look forward to, really. If you haven't checked out the original Narborion Saga, you can download it for free on the App Store.

Rebellion has launched a mobile version of their classic game of world domination, Evil Genius Online, for iOS.

Here you'll be wringing your hands and laughing maniacally as you build your secret lair and train minions to do your bidding. Your work will carry over between Facebook and your mobile device so you can play wherever your evil heart desires. You can also spy on your friends and disrupt whatever evil plans they were planning to carry out. Who will become the master evil genius? Rank up on the leader boards to find out.

Evil Genius Online can be downloaded for free on the App Store now.

From now until Monday, February 23, Sentinel 4: Dark Star by Origin8 is free to download. Now you can try the epic tower defense game and check out the Campaign 2 expansion with new maps, weapons, and the Juggernaut Commander. The game includes a campaign across 26 maps, an endless mode, and leader-boards and achievements on the GameCenter.

Download Sentinel 4: Dark Star today on the App Store, before the sale ends.

Three episodes in and AppSpy's James has decided to give GEOFF - the Gaming Entertainment Online Fact Finder - a serious test: why are guns being censored on the App Store?

And is looking at a pretend gun that bad?

And why are games being treated differently to other mediums?

AND ISN'T THIS AMERICA?

Mode 7's Frozen Synapse is now available for free on the iPhone and iPad. Frozen Synapse is a challenging tactics game where you control a team of soldiers using simultaneous turn-based play to let you plan out your moves before you send them against the enemy. It includes 5 multiplayer modes, a 55-mission single player campaign, and a random skirmish Generator.

Frozen Synapse is pretty deep and intriguing, so you should definitely try it out now while it's free.

Set for release next month, RAD Boarding is looking to be a pretty fun endless runner in the vein of Tiny Wings. You play a burnt-out 90s celebrity with nothing left to do in life but grab his snowboard, don his shades, and go on one final ride because, oh yeah, the world’s ending. The game promises a 90s inspired soundtrack as well as the inclusion of collectible Milk Caps, which will seem somewhat familiar to fans of Pogs from the 1990s. Plus you can smash through tombstones, if that’s your kind of thing.

Developed by Other Ocean, best known for NBA Rush, and published by the team behind the Super Stickman Golf series, Noodlecake Games, RAD Boarding certainly has some quality pedigree backing it. Intrigued by the game, we were able to talk to Noodlecake Games’ Ryan Holowaty and Other Ocean’s Marc McGinley to learn more.

148Apps: As a Tiny Wings style game, how many areas/worlds are there going to be to explore in RAD Boarding overall?
Marc McGinley (MM): Players can unlock new environments by beating Tiny the Bear (the boss). Tiny is a (not-so-tiny) eye patch wearing circus bear who is impressed by performing crazy trick combos. There are four environments in the game at launch: Grasslands, Desert, Jungle, and Ice Lands. Later environments help you earn more coins and collect more frogs.

148Apps: How long has the game been in development, roughly?
MM: We started out with a very different game and have gone through a lot of iteration and player feedback to get to where we are today. What you see right now in the game took us around a year to develop.

148Apps: What kind of in-app purchases will be available? Are there any upgrade paths to pursue?
MM: All of the upgrades in the game are focused around helping the player get further into the level, or earning them more currency to buy more upgrades. For convenience, players can purchase coin packs to speed up their progress, but the game is balanced fairly for non-paying users. Players can also buy Boost Tokens that multiply the number of coins they earn for a number of runs. We also have ads in the game, we're proud that they're very non-intrusive and players can optionally earn rewards by watching certain ads. Rewards could include Boost Tokens, coins, or Frogs.

148Apps:Regarding the Milk Caps and other types of collectible, are they just visual collectibles or do they offer anything extra?
MM: Milk Caps are just one type of collectible which you can find inside a frog. Frogs spawn on the slope occasionally and you have to collide with them to collect them. Milk Caps are mostly for collection, but who knows.... maybe they'll be worth something in the future? Players can also collect costume pieces which unlock new costumes once players have a full set. Tombstones and Tricks are earned by leveling up, and upgrades can be purchased with in-game currency.

Thanks to Ryan and Marc for taking the time to answer our questions. RAD Boarding sounds like it could be a pretty cool endless racer. It’s set for release March 5 and, of course, we’ll have a review for you then.

From Studio Batkin,the creators of Dark Guardians, comes a dark, Lovecraftian game called Slashing Demons.

The game faces you off against a many eyed, betentacled horror from beyond the pale. You must slash your way through its seemingly endless trunk to save all of humanity from destruction. The game offers a bunch of characters to unlock, rocking music, and the ability to share your high scores with friends in Game Center.

We'll find out more soon when Slashing Demons is officially released.

Pangoland, by Studio Pango, is a sandbox style game for kids where they'll get to explore the world of Pango, Piggy, Fox, Squirrel and Bunny and play tons of games and activities.

The game features secret mini-games, hundreds objects to interact with, the ability to switch between day and night, and no advertising. Among the many things they can do, kids can help Bunny to grow vegetables in the garden, decorate the Christmas tree with Pango, cook dinner for everyone, dig up fossils with Squirrel, or build a robot in Fox’s workshop. With its' cute graphics and endless activities, Pangoland is sure to keep kids busy exploring and having fun.

Pangoland comes out tomorrow on the App Store.

Super Monster Mayhem: Rampage, by eRepublik Labs, is a cute new take on an old classic. You play as a monster set on destroying the city. You'll have to swipe back and forth as your monster ascends a building to avoid bullets, angry cops, fire, explosions and other hazards. Eat as many people as you can to top the leaderboards and become the true king of the monsters.

Super Monster Mayhem: Rampage is currently is soft launch but will be available on the U.S. App Store for free "soon."