Apr 9 / Mattea Hart

Comparing 321, Alpha and Christianity Explored: finding the Christianity course that's right for you

When comparing Christianity courses, you’ll likely come across three popular options: 321, Alpha and Christianity Explored.

Which Is Right for Me?
  • Choose 321 if you want a short, online and self-paced way of investigating Christianity
  • Choose Christianity Explored if you’re ready for deeper Bible study and a mid-length course
  • Choose Alpha if you’re ready for a longer, social, group-based experience


All three introduce the Christian faith, but they differ in format, length and who they’re best suited for. Here’s a comparative overview to help you decide.

Comparing 321, Alpha and Christianity Explored

Alpha is a longer, group-based course often run in churches, while 321 is a shorter, flexible online course designed for individuals or small groups exploring faith for the first time.

Christianity Explored is a longer, group based Bible study, while 321 is a shorter, self-paced online course for individuals or small groups curious about Christianity.

Key Differences
321 Course
  • Fully self-paced and online (but can be done in person through a church too)
  • Short video-based sessions (each video is about 12 mins long)
  • Designed primarily for seekers exploring faith
  • Flexible for individual reflection or small groups
  • Uses storytelling to explore faith and meaning


Christianity Explored
  • Mid length course (typically 7 sessions)
  • Often run in person (online option available)
  • Bible-study based (focused on Mark’s Gospel)
  • Strong emphasis on exploring Jesus’ identity and mission through reading the Bible and group discussion


Alpha Course
  • Typically longer (8–12 sessions)
  • Run in person
  • Strong focus on testimonies and big questions
  • Often based around meals and communal discussion
  • Widely used in church-based outreach settings


Which Is Right for Me?
  • Choose 321 if you want a short, online and self-paced way of investigating Christianity
  • Choose Alpha if you’re ready for a longer, social, group-based experience
  • Choose Christianity Explored if you’re ready for deeper Bible study and longer sessions

For many first-time seekers who are new to Christianity, 321 is an easy starting point, especially if you prefer to explore at your own pace.

Many people start with 321 and then move on to something like Christianity Explored or Alpha if they want to go further.
Course Access Format Length Ideal for
321 Online and in-person Video + reflection 4 sessions First time seekers
Christianity Explored Primarily in-person Video + Bible study 7 sessions Deeper exploration
Alpha In-person Video + discussion 8-12 sessions Making friends
Course Access Format Length Ideal for
321 Online and in-person Video + reflection 4 sessions First time seekers
CE Primarily in-person Video + Bible study 7 sessions Deeper exploration
Alpha In-person Video + discussion 8-12 sessions Making friends

So, Where Should I Start?

If you’re completely new and asking:
  • What do Christians believe?
  • Who was Jesus?
  • Is there a God?


Then 321 is often a great place to start. It’s short, clear and designed for today’s world—helping you explore the big questions of life and faith without needing prior knowledge or a big time commitment.

Begin learning about Christianity

If you’re looking for a simple, engaging introduction to Christianity, start with the 321 Course.

It’s designed to meet you where you are, and help you take your first step toward understanding Jesus.

Bottom line: you don’t need to choose. All three are great introductions to the Christian faith, but perhaps 321, as the shortest, is the easiest to begin with.
You can also explore Who is 321 For? Seekers, Churches, and Small Groups to see how it fits different people.