Spamva
Hiding premium features within the interface without clear distinction, making it hard for users to understand what is free and what requires payment.

Altruheuristics
Biology
- Flow: Hard to carry out workflow when wrong buttons are selected.
- Stress: Frustration when wrong actions are selected.
CBT Distortions
- Personalization e.g. Why do I keep choosing the option?
- Shoulds e.g. I should not be making this mistake.
Biases
- Anchoring Bias
- Framing Bias
- Priming
Circ’s Principles
- Declutter: Avoid spamming the interface with freemium and premium interactions.
Mental Health
- None.
Traditional Heuristics
Jakob Nielson Principles
- Consistency: Mix causes confusion.
- Error Prevention: Easy to click on wrong action.
Gestalt
- Continuation: Mix of free and premium is inconsistent.
Don Norman Principles
- Signifier: Too subtle as interface is scannable and elements are stored in memory.
Graphic Design
- Proximity: Free and premium features too close to each other.
Deceptive Patterns
- None