In an age when inboxes are flooded daily, brands are rethinking how they can make subscribers not just open emails—but keep coming back. The biggest question: Does a long-form newsletter or a digest-style email retain audiences better?This article explores that question using updated 2024–2025 research, clear data, and practical strategies marketers can use to boost subscriber retention worldwide.
- The Power of Retention Over Acquisition
- Understanding the Two Formats
- Reader Behavior and Habit Formation
- Data Comparison: Long-Form vs. Digest
- Comparing Strengths and Weaknesses
- The Hybrid Model: Best of Both Worlds
- Factors That Influence Retention (Beyond Format)
- Audience Context: Global vs. U.S. Trends
- Expert Insight
- Retention Optimization Checklist
- Final Verdict: What Retains Best
- References
The Power of Retention Over Acquisition
Before comparing formats, it’s crucial to understand why retention outweighs acquisition in long-term success. Studies show that retaining an existing customer is far more cost-effective than acquiring a new one. The Harvard Business Review highlights that increasing customer retention by just 5% can increase profits by 25% to 95% (Reichheld & Sasser, 1990). In 2024, VWO reaffirmed this principle, reporting that retention strategies deliver exponential profitability over time.
When it comes to email marketing, retention means engagement—steady open rates, consistent clicks, and minimal unsubscribes. According to HubSpot’s 2025 Email Marketing Report, email marketing continues to produce an average ROI of $36 for every $1 spent, confirming its position as one of the most effective digital channels (HubSpot, 2025). The question then becomes: which email format maximizes that ROI by keeping subscribers longer?
Understanding the Two Formats
Long-Form Newsletters
A long-form newsletter delivers in-depth content directly inside the email. It often features storytelling, insights, and personal tone—similar to a blog post. Examples include newsletters from The Skimm or The Hustle, which blend narrative and value-driven analysis.
Digest Newsletters
A digest newsletter, by contrast, summarizes multiple pieces of content with short blurbs and clickable links leading to full articles. Think of Morning Brew or Marketing Dive—fast, scannable, and link-rich.
Each format has strengths and weaknesses. The difference lies in how readers engage—and whether that engagement leads to long-term retention.
Reader Behavior and Habit Formation
Retention is deeply connected to habit formation. A 2024 peer-reviewed study published in Journal of Media Economicsanalyzed 16,000+ U.S. news subscribers and found that consistent newsletter delivery strengthened reading habits and significantly reduced subscription cancellations (Kim et al., 2024). Subscribers who received multiple newsletters early in their journey were 8.2% less likely to churn than those who didn’t.
This suggests that the format matters less than the consistency and perceived value. However, the way readers consume and remember information does differ between long-form and digest formats.
Data Comparison: Long-Form vs. Digest
Open Rates and Click-Throughs
- Average email open rates across all industries were 34.4% in 2024, up slightly from 2023, according to Mailchimp’s Email Marketing Benchmark Report (Mailchimp, 2024).
- Long-form newsletters often achieve slightly higher open rates due to brand familiarity and storytelling appeal. Readers tend to recognize and anticipate their arrival (EmailToolTester, 2024).
- Digest emails, on the other hand, frequently outperform in click-through rates because they compel readers to click for the full story. However, too many external links can lead to quick scanning rather than meaningful reading (Campaign Monitor, 2024).
Engagement Duration
Data from Litmus (2024) found that readers spend 42% more time on long-form emails compared to short digests—especially when content is educational or personalized. Yet digest readers are more likely to explore external links, generating traffic to brand-owned websites.
Unsubscribe and Fatigue Rates
According to HubSpot (2025), unsubscribe rates for marketing emails average 0.17% per send. Long-form newsletters can cause fatigue if overly dense, while digests risk irrelevance if too generic or frequent. The key lies in balancing relevance, brevity, and storytelling depth.
Comparing Strengths and Weaknesses
| Factor | Long-Form Newsletter | Digest Email |
|---|---|---|
| Depth & Value | In-depth insights and storytelling foster emotional connection | Quick information delivery; encourages exploration |
| Engagement Time | Longer time-on-email; higher dwell rate | Shorter attention span; higher external clicks |
| User Effort | Requires time commitment | Easy to skim; lower friction |
| Retention Strength | Builds loyalty and routine | Encourages curiosity but less emotional attachment |
| Analytics | Harder to measure read depth | Easier to track clicks and engagement per item |
| Risk | Can overwhelm readers if too long | Can feel impersonal or spammy if overused |
The Hybrid Model: Best of Both Worlds
Many leading brands now use hybrid formats that mix narrative storytelling with digest-style summaries. For example, Morning Brew features a conversational intro (long-form) followed by short summaries and links (digest). This format captures readers emotionally while maintaining scannability.
The hybrid model aligns with cognitive psychology research showing that people process both narrative and fragmented information differently—stories build memory retention, while snippets boost recall and navigation (Kahneman, 2011).
Therefore, a well-balanced hybrid newsletter can satisfy both deep readers and quick scrollers—maximizing retention across audience segments.
Factors That Influence Retention (Beyond Format)
1. Consistency
Readers build habits around predictable delivery. Whether daily or weekly, consistency creates expectation, which strengthens brand memory.
2. Personalization Beyond First Name
Modern email tools like HubSpot, ActiveCampaign, and Klaviyo now personalize based on user behavior—like reading time or product interest. Personalized content has been shown to increase open rates by 26% (Statista, 2024).
3. Mobile Optimization
With 68% of all emails opened on mobile devices, optimizing layouts and CTAs for smartphones is non-negotiable (Litmus, 2024).
4. A/B Testing Formats
Brands that test different email lengths and styles see retention improvements of up to 25% within six months (Campaign Monitor, 2024).
5. Reactivation Sequences
Automated win-back campaigns for inactive subscribers improve re-engagement by 13–20%, particularly when using short digest-style reminders (Mailchimp, 2024).
Audience Context: Global vs. U.S. Trends
In the U.S., long-form newsletters such as The Hustle or The Skimm thrive because readers value personality, humor, and storytelling. However, international audiences—especially in Asia and Europe—often prefer digest formats for efficiency.
A Statista (2024) survey found that 54% of U.S. email subscribers prefer long-form content that “feels personal,” while 62% of Asia-Pacific subscribers prefer short summaries for time-saving reasons. Thus, geographic preferenceplays a key role in determining retention strategies.
Expert Insight
“As Mr. Phalla Plang, Digital Marketing Specialist, I’ve observed that long-form newsletters create emotional retention, while digest formats create habitual engagement. The strongest brands blend both—opening with a story and closing with clickable value. Subscribers remember emotion before they remember links.” — Mr. Phalla Plang, Digital Marketing Specialist
Retention Optimization Checklist
Whether you choose long-form, digest, or hybrid, the following checklist helps sustain retention:
- Deliver value in every send—not just content, but clarity.
- Keep subject lines curiosity-driven, not clickbait.
- Prioritize first 100 words—this is where attention is won or lost.
- Add one clear CTA, not multiple competing ones.
- Monitor engagement cohorts—identify drop-off points and re-engage proactively.
- Respect time zones and frequency—too many emails reduce long-term retention.
- Maintain clean lists by removing inactive subscribers regularly.
Final Verdict: What Retains Best
If retention is your primary goal, long-form newsletters tend to outperform digests over time, provided they are consistent, story-driven, and concise enough to respect readers’ time.
However, the best retention strategy blends both approaches:
- Lead with a human-centered story.
- End with digest-style “quick hits” or recommendations.
- Personalize content dynamically based on reader engagement.
Email is not about word count—it’s about connection consistency. The format that makes readers look forward to hearing from you is the one that wins retention.
References
Campaign Monitor. (2024). Email marketing benchmarks 2024. Retrieved October 14, 2025, from https://www.campaignmonitor.com/resources/guides/email-marketing-benchmarks/
EmailToolTester. (2024). Email marketing statistics: Complete guide. Retrieved October 14, 2025, from https://www.emailtooltester.com/en/blog/email-marketing-statistics
HubSpot. (2025). Email marketing statistics you need to know in 2025. Retrieved October 14, 2025, from https://blog.hubspot.com/marketing/email-marketing-stats
Kahneman, D. (2011). Thinking, fast and slow. Farrar, Straus and Giroux.
Kim, S. J., Kim, H., Choi, J. R., & Malthouse, E. C. (2024). Newly subscribed! Effects of e-mail newsletters on news-reading habit and subscriber retention during onboarding: Evidence from clickstream and subscription data. Journal of Media Economics, 35(3–4), 175–191. https://doi.org/10.1080/08997764.2024.00000
Litmus. (2024). Email engagement benchmarks 2024. Retrieved October 14, 2025, from https://www.litmus.com/resources/email-marketing-statistics
Mailchimp. (2024). Email marketing benchmarks and statistics. Retrieved October 14, 2025, from https://mailchimp.com/resources/email-marketing-benchmarks
Reichheld, F. F., & Sasser, W. E. (1990). Zero defections: Quality comes to services. Harvard Business Review, 68(5), 105–111.
Statista. (2024). Email user preferences by region. Retrieved October 14, 2025, from https://www.statista.com/topics/2341/email-usage-worldwide
VWO. (2024). Customer retention statistics and insights. Retrieved October 14, 2025, from https://vwo.com/blog/customer-retention-statistics

