New App Review Series 1: ’45’ Demonstrates How Fun Simple Apps Can Be

Welcome to Hacked’s first series, which is yet to be named. This series will focus on reviewing new (mainly indie) mobile applications, with the hopes of encouraging indie developers to create apps. I will write new reviews for this series periodically, likely every other week. The first review will be on the application ‘45’, available in the App Store. This review will be on v1.0 of the iPhone application.

Objective & Background

A screenshot of an iPhone. There is an advertisement at the top of the screen for a game (whose name is blurred out). The actual game has 10 variously-colored rectangles, and a timer at the top of the game shows that there are 15.78 seconds left in the game. Above the timer is a text box saying that the player has 25 points, and another text box to the right of that says that the player is on level 5. A button to the top left of the game has two bars, meaning that the player can tap this to pause the game.45 was released to the App Store on January 3rd, 2015, so it’s very new. It was developed by a developer named Vince Kramers, founder and CEO of Limitless Development.

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While 45 may look fairly complex, once you figure out how to play, you’ll see how simple it is.

The game opens with a screen filled with rectangles of various colors. When the player taps on a rectangle, it changes color. The colors change in a pattern: purple, beige, orange, brown, yellow, red, blue, and finally green. The goal of the game is to tap each and every rectangle enough times to get them to the green-colored rectangle. When every rectangle on the screen is green, the player advances to the next level. The player is given 45 seconds to make as many rectangles green as they can.

45 utilizes Apple’s Game Center for keeping track of high scores. The current high score is tied at 57 points (you get one point per green rectangle). I am ranked fourth, with 51 points. The Game Center provides friendly competition with other players around the world.


45 is an addictive, yet very simple game, which is somewhat of a pattern in mobile applications (e.g. Doodle Jump, Flappy Bird, Temple Run, and many others). A major similarity of all of these games is that the player restarts from the beginning when they lose, which usually happens fairly quickly (within a minute). This keeps the player wanting to improve their score, especially since they can attempt to do so every minute.

A significant difference from 45 and the apps used as examples above is that 45 is not an endless running game, a game that theoretically never ends and newly generated obstacles are placed in the player’s path. With 45, the game will end in 45 seconds regardless of what the player does. The player needs to tap quickly, and practice certainly makes them better.

Here are a few strategies I’ve utilized:

  • I know that tapping blue once will get me to green, tapping red twice will get me to green, and tapping yellow three times will get me to green. I attempt to get all of my rectangles to these colors so I can quickly know how many times to tap them.
  • If there is only one rectangle left to fill in (every other one is green), just keep tapping it. When it turns green, you will advance to the next level. You don’t need to be careful on the last rectangle.
  • If you want to increase your scores, I highly suggest trying to use two (or more!) fingers. I am currently only using two, but a major way to improve your score in 45 is to be able to focus on more than one rectangle at once. You need to be able to change more than one rectangle at once if you hope to hit a score of 50 or higher.

One thing I noticed that interested me was the lack of instructions. Sure, there is a basic explanation in the App Store, but I actually prefer the obscurity. The only instructions in-game are when you tap the play button, you are given a countdown from 3 to prepare yourself to play and the text “make all the tiles green!” appears on the screen. These scarce instructions encourage the player to figure out how to play the game themselves, which shouldn’t take more than a minute. I appreciate this, and I’m not sure whether it was intentional by the developer. Another thing I’ve been pondering is how the app could be improved. I can’t decide whether adding additional minigames would make it more fun or take away from the simplicity that makes me admire it.

Overall, I am impressed with this app. I have not found a single bug, and this is its first version! The app is free, but it has banner ads at the top of the screen. Fortunately I’ve found these ads to not be intrusive of gameplay, and I don’t even realize that they’re there during the game. I have fortunately yet to accidentally tap on an ad during a game.

The next installment of this series is scheduled to be published in two weeks, so be sure to check back if you enjoyed this review!

Images from ’45,’ Simone Mescolini and Shutterstock.

Interested in science, cryptography, new technology, and applications.