Up to 4 at once.
| Criteria | PostUp | Substack |
|---|---|---|
| Weighted Score | 3.9/5 | 3.6/5 |
| Pricing | Custom enterprise pricing; requires a demo request for a personalized quote. | Free to publish; Substack takes a 10% commission on paid subscription revenue plus standard Stripe processing fees. |
| Platform Type | Email newsletter platform | Subscription management |
| Deliverability & inbox placement | 4.2/5 | 4.2/5 |
| Audience growth tools | 4.0/5 | 4.6/5 |
| Segmentation & automation | 4.3/5 | 1.5/5 |
| Monetisation | 4.2/5 | 4.7/5 |
| Editor & template design | 3.8/5 | 2.0/5 |
| Analytics after Apple Mail Privacy Protection | 2.5/5 | 3.0/5 |
| Integrations & API | 4.1/5 | 1.2/5 |
| Subscriber management & data portability | 3.5/5 | 4.0/5 |
| Compliance & list hygiene | 4.0/5 | 3.5/5 |
| Sending performance at scale | 4.0/5 | 4.0/5 |
| Strengths | ✓ Audience development tools designed to build and maintain subscriber relationships ✓ Data gathering and audience segmentation that doesn't disrupt the user experience | ✓ Direct-to-subscriber model ✓ Multimedia support |
| Limitations | ✗ Smaller platform with less market presence than major competitors ✗ No transparent pricing — must be discussed with sales team based on individual use cases | ✗ Could do better with advanced content discovery features ✗ Substack takes 10% of revenue from paid subscriptions |
PostUp
3.9
Rating
★ 3.9/5
Pricing
Custom enterprise pricing; requires a demo request for a personalized quote.
Platform
Email newsletter platform
Scores
Deliverability & inbox placement
4.2
Audience growth tools
4.0
Segmentation & automation
4.3
Monetisation
4.2
Editor & template design
3.8
Analytics after Apple Mail Privacy Protection
2.5
Integrations & API
4.1
Subscriber management & data portability
3.5
Compliance & list hygiene
4.0
Sending performance at scale
4.0
Strengths
✓ Audience development tools designed to build and maintain subscriber relationships
✓ Data gathering and audience segmentation that doesn't disrupt the user experience
Limitations
✗ Smaller platform with less market presence than major competitors
✗ No transparent pricing — must be discussed with sales team based on individual use cases
Substack
3.6
Rating
★ 3.6/5
Pricing
Free to publish; Substack takes a 10% commission on paid subscription revenue plus standard Stripe processing fees.
Platform
Subscription management
Scores
Deliverability & inbox placement
4.2
Audience growth tools
4.6
Segmentation & automation
1.5
Monetisation
4.7
Editor & template design
2.0
Analytics after Apple Mail Privacy Protection
3.0
Integrations & API
1.2
Subscriber management & data portability
4.0
Compliance & list hygiene
3.5
Sending performance at scale
4.0
Strengths
✓ Direct-to-subscriber model
✓ Multimedia support
Limitations
✗ Could do better with advanced content discovery features
✗ Substack takes 10% of revenue from paid subscriptions
