Choose Your Plan

Start with Free to explore. Upgrade to Plus for serious revision. Choose Pro for publishing and recognition.

Free

Discover what's possible

£0 / month

A starter taster of Custom Backup. Enough to explore - not enough for serious revision.

Custom AI - CB Create
45K Tokens
≈ 3 Creates
Custom AI - CB Marker
50
markers/month
Custom AI - CB Notes
20K Tokens
≈ 10 Notes
Custom AI - CB Images
N/A
no AI generated images
Custom AI - CB Explanation
10K Tokens
≈ 20 Explanations
Recognition
N/A
no recognition
Advanced Mode
N/A
no advanced mode

Plus (Most Popular)

The Architect's toolkit

£4.99 / month

For serious students. Unlock Advanced Mode and enough tokens for consistent revision.

Custom AI - CB Create
300K Tokens
≈ 20 Creates
Custom AI - CB Marker
Unlimited
markers/month
Custom AI - CB Notes
100K Tokens
≈ 50 Notes
Custom AI - CB Images
50K Tokens
≈ 25 Images
Custom AI - CB Explanation
100K Tokens
≈ 200 Explanations
Recognition
Architect badge
+ silver username
Advanced Mode
Included
SM-2+ tracking

Pro

The Creator's tier

£11.99 / month

For ambitious students and creators. Publish, share, and earn recognition with Custom Distinctions.

Custom AI - CB Create
1M Tokens
≈ 60+ Creates
Custom AI - CB Marker
Unlimited
markers/month
Custom AI - CB Notes
400K Tokens
≈ 200 Notes
Custom AI - CB Images
100K Tokens
≈ 50 Images
Custom AI - CB Explanation
Unlimited Tokens
No limits
Recognition
Creator badge
+ gold username + Distinctions
Advanced Mode
Included
Full mastery tracking

Upgrading takes less than a minute.

Looking for more detail? What are tokens? What are The Custom Distinctions? What is Custom AI? How Advanced Mode Works