FiftyThree, the company behind the Paper app for sketching on iPad, has announced an online community for Paper artists. The community will allow people to post, edit and download each other's Paper sketches. This community is called Mix and will be made available to all the people who use Paper for iPad by the end of October. This community can be accessed from the Web as well.

The purpose of Mix is to enable people to collaborate without going through hoops. This community lets people create sketches, which could be outlines for colouring books or even the position of fielders for a cricket game, and share them online. Others can then download these sketches with a single tap and find them saved in a notebook within Paper for iPad. They can then make changes to it and share it back. This is called remixing a sketch by the firm.

An interesting feature is that Paper allows people to track changes on every one of these shared sketches. The Verge reports that people will be able to see how a sketch was created as the app gathers all the edits to a sketch in a stack-like interface. This might help artists improve their sketches on Paper, as the collaboration platform is likely to help them learn from the best.

(Also see: App Review: Paper by FiftyThree)

The Verge report says the number of sketches and remixes will show up on a person's Mix profile. As of now all shared sketches are public and there is no way to keep these private. However, the content is licensed under the Creative Commons Universal Domain Public Licence, which lets you retain ownership but allows anyone to remix your sketches.

Earlier, Paper was in the news because Facebook launched an app with the same name. The naming controversy resulted in FiftyThree filing a trademark applicationfor the name Paper. It already has a trademark on Paper by FiftyThree. Facebook's app is unrelated to sketching. It finds the best stories from Facebook and shows it as pretty cards. However, the name of the app - Paper - had led to the controversy.

Want to get all the best apps without emptying your wallet? In our series, we search through all the different app stores to find the best deals for mobile, tablet and PC users. This week, there's a good selection of games, password management tools, and even comic books. Here's the list:

1. Star Horizon

This great looking 3D space fighting game has smooth controls and amazing graphics. The game itself looks like a flying game but it's really more of a shooting gallery - your movement is on rails, though within that you have to dodge to avoid enemy shots and dangerous hazards like asteroids. Buttons on the left side of the screen handle your weapons, while you can use the rest of the screen to control movement. There's no in-app spending here - you pay a flat fee and get to play the game, but despite the gorgeous visuals, the game itself is a little shallow, so your enjoyment will depend on how much you like the genre.

iOS (usually Rs. 240, is Rs. 120), Android (usually Rs. 220, is Rs. 110)

2. 1Password

The well-known and highly popular password manager 1Password has gone free for now. A password manager is a great way of keeping track of multiple, difficult passwords. Instead of having to remember all your passwords, you store them in 1password, and need only to remember the password for the app.

It also comes with a built in browser, where you can store your credit card details as well as login information safely, and the app can autofill these for you.

iOS (usually Rs. 600, is free), Android (free with in-app purchase to unlock features)

3. Fieldrunners 2

Fieldrunners 2 is one of the best tower defence games for the iPhone iPad, and it has gone free for a limited time only. There are versions of the game for Android, and Blackberry, but those are all at full price; only the iOS version has seen a price cut. The game has been at the forefront of the TD genre, and couples this with a fun style with great visuals and audio, and shouldn't be missed.

There is also a version called Fieldrunners 2 HD Free, which could cause some confusion, but that's a demo to give you a taste of the full game. You cannot unlock all levels and abilities on Fieldrunners 2 HD Free, so make sure that the app you download is named Fieldrunners 2 HD, or Fieldrunners 2.

iPad (usually Rs. 300, is free), iPhone (usually Rs. 190, is free)

4. Humble Indie Bundle 12

The Humble Indie Bundle is a great way to build up your game collection, discover Indie hits, and save a lot of money as well. The bundle follows a pay what you want model, so you can buy three great games for as little as $0.01 (under Rs. 1), although paying more than average (around $7 (Rs. 426) at the time of writing) will get you access to at least six more games. More games tend to be added over time, so if you're looking for the most bang for your buck you should get in early. If you pay more than $10, then you also get early access to Prison Architect. Some of the amazing games in the latest bundle include Steamworld Dig, Papers Please, Luftrausers, Gone Home and Monaco: What's Yours Is Mine. These are superstar titles, and frankly, worth more than the MRP of $171 (Rs. 10,430), and if you haven't played these games already, don't miss the bundle.

PC (Pay what you want. Total value is $171 (Rs. 10,430), Pay $10 (Rs. 609) to unlock everything)

5. BusyBox - Time spent tracker and multi task keeper

BusyBox is a very simple app that just lets you save timer logs with categories and notes to describe what you were doing. You could just use the built in timer and make notes if you wanted to, but BusyBox makes it simple.

At the end of the day, you could look at all the entries with the category coffee break, for example, to see how much time was actually wasted today. And it can be useful to keep track of how you work through the day so that you can more carefully manage your time moving forward.

iOS (usually Rs. 190, is free)

Some other great deals:

Assassin's Creed Pirates: iOS, Android (usually Rs. 300, is free)

Archos Video Player: Android (usually Rs. 300, is Rs. 59)

Swype Keyboard: Android (was Rs. 180, is Rs. 60)

Humble Star Trek Bundle: Digital comics (Pay what you want. Total value is $335 (Rs. 20,433), pay $15 (Rs. 915) to unlock everything)

If we missed any great deals, let us know via the comments.

Apple, in a bid to offer more security to users following the high-profile nude celebrity image leak, has brought two-step verification for iCloud access.

The Cupertino-based giant in an email titled "Two-step verification now protects iCloud" detailed the new changes.

The email (via Engadget) reads, "Starting today [Tuesday], in addition to protecting your Apple ID account information, two-step verification also protects all of the data you store and keep up to date with iCloud. The company also points users to its two-step verification support page.

(Also see: How to Enable Two-Factor Authentication For Gmail, Facebook, Apple, Twitter, Outlook, Yahoo Accounts)

The company also revealed that starting October 1, app-specific passwords will be required to access to third-party apps such as Microsoft Outlook, Mozilla Thunderbird, and BusyCal, which do not support the two-step verification feature. More details can be found on Apple's support page.

The email further said, "Sign in securely with app-specific passwords: If you use iCloud with any third party apps, you can now generate app-specific passwords that allow you to sign in securely even if the app you are using does not support two-step verification."

Ars Technica reported the roll-out of two-step verification for iCloud first, and noted, "The accounts of victims of social engineering attacks or those who used passwords based on personal data could be harvested of their backup data-allowing the attacker to gain access to photos, call records, SMS records, e-mail, and other personal data."

(Also see: How to Prevent Theft of Photos From Your iCloud Account)

Apple Insider points out that the new two-step verification does not include Find My iPhone by default, which allows users to deactivate or wipe data from a trusted device remotely if lost or stolen.

The move to expand the two-step verification to Apple iCloud is aimed at restoring confidence in Apple's security since the leak of racy nude celebrity photos reported earlier this month, sparking widespread criticism of Apple's security processes from all over the world.

The company, just ahead of the iPhone 6 unveiling, had rolled out a new feature for iCloud users. Apple started sending alert emails when users' iCloud accounts were accessed through a Web browser.

Earlier this year, Apple expanded availability of its two-step verification feature for iCloud and Apple ID users to 59 countries, a list that included India as well.

For the uninitiated, Apple ID users can go to the Password and Security tab to enable the two-step verification. Users will also need to register one or more trusted devices. Following this, a 4-digit verification code is sent via SMS or through the Find My iPhone app, if installed.

After enabling it, users won't need to remember answers to security questions each time they set-up a new device with that ID. Apple also sends a 14-digit Recovery Key for safekeeping which users can use to access their account if they forget their password or lose their device.

Also, Apple does not allow two-step verification setup to proceed if the user had recently made any significant changes including resetting his password or selecting new security questions to his account information and puts a waiting period as a security measure.

Karbonn seems all set to launch a new smartphone called Titanium S10, as it was briefly listed for purchase on an e-commerce website at a discounted price of Rs. 7,990 (with a listed MRP of Rs. 8,490) ahead of an official announcement. The page is still up, but shows the product as not available.

As seen on the e-commerce site's Karbonn Titanium S10 listing page, the smartphone features dual-SIM (GSM+GSM) support and runs Android 4.4 KitKat out-of-the-box. It bears a 5-inch HD (720x1280 pixel) IPS display and is powered by a 1.3GHz quad-core (unspecified chipset) processor coupled with 1GB of RAM.

The smartphone comes with an 8-megapixel rear camera along with LED flash support and there is a 2-megapixel front-facing camera also onboard. The Karbonn Titanium S10 supports an additional expansion via microSD card (up to 32GB), apart from the 4GB of inbuilt storage.

Connectivity options on Titanium S10 smartphone are listed to include 3G, Wi-Fi, Bluetooth, GPRS/ EDGE and GPS. It also comes with G-sensor, proximity sensor, and an ambient light sensor.

The Titanium S10 packs an 1850mAh Li-Ion battery and is listed on Snapdeal in a Black colour variant.

Earlier this week Karbonn launched its first Google-partnered Android One smartphone in India called Karbonn Sparkle V priced at Rs. 6,399. The is available in Magnum Blue, Mild Grey, Wild Red and Pearl White colour variants exclusively via Snapdeal.

Specifications of the Karbonn Sparkle V include a 4.5-inch (480x854 pixels) IPS FWVGA display; 1.3GHz quad-core MediaTek processor; 1GB of RAM, 4GB of inbuilt storage; expandable storage support via microSD card (up to 32GB); a 5-megapixel rear camera with LED flash; a 2-megapixel front camera; Wi-Fi, Bluetooth, GPS, GPRS/ EDGE, 3G, and a 1700mAh battery