AppCoins is a protocol for the App Economy created by the Aptoide App Store, and the first ICO serving 200 million users with the goal of creating a trustworthy economy without intermediaries. The AppCoins project was designed to foster innovation in technology. To create a universal digital advertising protocol for mobile devices, the developers at Aptoide designed AppCoins. AppCoins is an application-specific token which was designed to create a universal digital advertising protocol for mobile devices. It can be used to incentivize behavior which can then be used to raise money for the development of an app. Aptoide is the 3rd biggest app store with a with over 4 billion downloads and 1 million Apps. WIth over 230,000,000 users, apps and support in 40 languages, more than 2.8 billion downloads, the cryptocoin can revolutionize how people use mobile technology and applications. AppCoins will bring in a range of standard protocols to be followed by all developers to advertise their games or apps in the app store.The “AppCoin” ERC20 token will bridge the gap between the advertisers and the users. A user earns 85% from every advertising investment that goes inside the app store. The user has to then use those coins to buy items (in-app purchases) inside the apps and games, thus, generating the return of the investment to the developers. Most industry enthusiasts believe that the immediate forecast of AppCoins price trends leans towards the downward slope. It is expected to be priced at an average price of ~$0.191 for a long while, with a few minor fluctuations.The trend is however, expected to stabilize at this point until Aptoide as a platform gains traction within the mobile usage industry. Once the ROI of the Aptoide platform starts multiplying significantly due to an increase in the number of users and developers on the network, the price will increase significantly and will correspond to good returns for investors. AppCoins is an innovative concept with a tidy site that conveys the underlying ideas well. As described above, investment in APPC is a favorable option for both developers and users. However, it is evident that the returns of the AppCoins’ solution are directly proportional to the development of the relationship of the App-store and the OEMs in the ecosystem. Thus, the amount of profit or returns gained by a trader will be a function of the ROI which the platform develops and its reputation in the crypto space.With almost 50% of the APPC coins in circulation as of July 2018, users have a good opportunity to buy them. However, it should be noted that it does not form a good investment option for a short period of time.
QuarkChain is a secure, permission-less, scalable, and decentralized blockchain. One of the goals of QuarkChain is to utilize sharding technology to deliver over 1 million transactions per second (tps). Essentially, QuarkChain markets itself as a peer-to-peer blockchain with a high capacity throughput to help deliver fast and secure decentralized applications. The team behind QuarkChain created this blockchain to resolve the issue of scalability that all the major blockchains are currently facing. The team feels that because of the urgency of this issue, the Bitcoin community simply cannot afford to wait until they all agree on a solution. Instead, they feel that by offering different solutions, such as the one inherent in QuarkChain, this compels the community to split via a hard fork and find the solution that works best. QuarkChain encourages increased decentralization through multiple cheap nodes that then create a cluster that works as a super-full node. This prevents the high expenses associated with super-full nodes when the tps gets high. In terms of protection, all transactions within QuarkChain get the protection of 50 percent of the network’s hash power. This makes a double-spending attack incredibly challenging, particularly when combined with QuarkChain’s decentralized nature. QuarkChain relies on a two-layer blockchain structure. Sharding blockchains known as shards are the first layer, while the second layer is a root blockchain that confirms the shards’ blocks.The major work on QuarkChain began in Q2 2017 with research into the problem of blockchain scalability. In Q4 of that year, the team drafted the whitepaper. In February 2018, it released the white paper and completed verification code 0.1. March 2018 saw the 0.1 versions of both the wallet and testnet. Now in Q2, the team is working on the testnet 1.0 and smart contract 0.1. In Q4 2018, the team will have the QuarkChain Core 1.0, along with the mainnet 1.0 and the SmartWallet 1.0. By Q2 2019, both the SmartWallet and QuarkChain Core will be in their 2.0 versions. QuarkChain is a decentralized blockchain network that aims to resolve the issues of scalability that plague existing networks by using sharding technology. In this way, QuarkChain can dramatically extend the usefulness of blockchain technology since many applications are limited by the scalability of existing blockchain networks. The project is still in progress, but QuarkChain has already made many positive steps and already began invite-based beta testing for the testnet, showing significant progress and potential. The main features of Quarkchain are: 1. Reshardable two-layered blockchain: Quarkchain consists of two layers of blockchains. We apply elastic sharding blockchains (shards) as the first layer, and a root blockchain as the second layer that confirms the blocks from the first layer. The second layer that confirms the blocks from the first layer. The second layer is flexible to be resharded as needed without changing the root layer. 2. Guaranteed security by market-driven collaborative mining: To ensure the security of all transactions, a game-theoretic framework is designed for incentives, where at least 50% of overall hash powers are allocated to the root chain to prevent double spending attack on any transactions. 3. Anti-centralized horizontal scalability: In any blockchain network with a high TPS, a super-full node can be extremely expensive, which encourages centralization. In contrast, QuarkChain allows multiple cheap nodes forming a cluster to replace a super-full node. 4. Efficient cross-shard transactions: Cross-shard transactions in QuarkChain can be issued at any time, and confirmed in minutes. The speed of cross-shard transactions increases linearly as the number of shards increases. 5. Simple account management: There is only one account needed for the entire blockchain (shards) in QuarkChain. All cryptocurrencies from different shards are stored in one smart wallet.