Games are a great way to bring a big dose of fun to any gathering. But in most situations, you'll need to have already purchased a board game or card game before the party gets started.

However, there are a number of different iPhone games available that are perfect for parties, large or small. To help get you started, we're highlighting some fun iPhone party games.

1. Heads Up!

From talk show host Ellen DeGeneres, Heads Up! is one of the most popular party games available. Perfect for all ages, the game's appeal is in large part thanks to its simplicity and the fact that it can be played with anywhere between two people to a huge group.

You'll hold up an iPhone to your forehead, and the phone screen then displays a word from a diverse number of different categories. It's up to everyone else to give clues so you can correctly guess the right answer. If you guess correctly, tilt the phone screen down to draw a new card. Tilting up will pass the word and also show a new clue.

Some of the fun deck categories include celebrities, movies, animals, accents, and more. So you'll always find something new to play with. At the end of the round, you can see exactly how well you did. As a hilarious touch, you can even use the iPhone's front-facing camera to record and then playback videos of everyone trying to give clues.

And if you're looking to have more age-appropriate fun without an iPhone, take a look at these great family board games you've never heard of.

Download: Heads Up! ($0.99, in-app purchases available)

2. Evil Apples: Dirty as ____.

Make sure to hide the kids when playing Evil Apples: Dirty as ____. A digital take on the popular card game Cards Against Humanity, prepare to laugh.

To start, a question card is shown to all players. Each player then selects an answer card to fill in the blank. The selected judge will then pick their favorite answer card. The first player to win seven rounds is declared the victor. The question and answer combinations can range from merely funny to downright hysterical.

There are more than 4,000 answer cards and 800 questions cards to always keep things interesting. You can play with nearby friends at a gathering or even at other times through texts, Twitter, or Facebook. A random blitz mode will even allow you to play immediately with strangers.

Download: Evil Apples: Dirty as ____. (Free, in-app purchases available)

If you're looking for a more traditional card game for grown-ups, try one of these free Texas Hold'em Poker apps.

3. Just Dance Now

Dancing is a great way to turn up the fun at any party. And Just Dance Now brings that excitement to almost anywhere without needing a games console. Your iPhone acts as the controller while any internet-connected screen like an Apple TV, iPad, computer, or Chromecast device will show all of the action.

After a few minutes of set up, it’s time to dance. While the larger screen shows the dance and moves, your iPhone will act as a motion tracker. There are more than 400 different songs available to dance to. You can even create your own playlist for a party or anytime else. All of your calories burned while dancing will also appear in Apple's Health app.

The free version of the game allows limited access to songs, but you can unlock the entire catalog through an in-app purchase or subscription.

Download: Just Dance Now (Free, in-app purchases and subscription available)

4. The Truth Comes Out

DeGeneres makes the list again with another great party game. The Truth Comes Out takes some inspiration from Cards Against Humanity but adds a more personal touch focusing on you and your friends. You'll need at least three people to play a game.

Everyone will answer questions like "What's the last thing Maria Googled?" or "What is the biggest secret that Laura is keeping?" Players will then vote for their favorite answers. You'll score points when friends choose your answers. The player with the most points at the end of the game is victorious.

A paid monthly subscription will unlock access to hundreds of more adult-oriented questions.

Download: The Truth Comes Out (Free, subscription available)

5. What Would You Choose? Rather

A great app to start a conversation, What You Choose has a simple premise.

The app has hundreds of different would you rather questions. For example, would you rather be a professional athlete or a professional actor? You can vote on your favorite options and then see real-time results from players all around the world. There are no inappropriate questions, meaning this game is suitable for kids.

Download: What Would You Choose? Rather (Free)

6. Triple Agent!

Get ready for deception in Triple Agent! A party game for between five and seven players, all you need is a single iPhone. Each round lasts around 10 minutes and features 12 different operations to create a different experience each time.

To begin, each player is assigned a role: a secret agent or a VIRUS double agent.

You'll continue to pass around the device to learn more information about all of the players. At the end of the round, players will vote who to imprison. If a double agent is chosen, the service members win. If not, VIRUS is victorious.

The paid expansion pack will bring support for up to nine players and mode that will also unlock a special mode where abilities are randomly assigned.

Download: Triple Agent! (Free, in-app purchases available)

Turn Up the Fun With iPhone Party Apps

Instead of needing to plan ahead, these options can help get your friends in a great mood no matter where you are. Have fun talking and laughing as everyone plays these fun iPhone party games. Also, take a look at these iPhone gaming options for more fun games.

We also think the Jackbox Games make for an awesome party experience. Learn more about what Jackbox Games are and which Jackbox Party Packs are worth getting.

Another quick way to bring fun to any party is to add some music. So definitely make sure to take a look at these great wireless outdoor speakers to pump up the volume at your next get-together.