S
SaaS Decision
Admin Portal
⚡ Head-to-Head Deterministic Intelligence

Fillout vs beehiiv

Comprehensive deterministic comparison evaluating decision scores, pricing models, replacement difficulty, and open-source alternatives for 2026.

Forms & Surveys

Fillout

Starting PriceFree

Fillout provides specialized capabilities in forms & surveys, delivering intuitive features, flexible integration options, and team reliability.

Verdict:SELF HOST
Full Fillout Review ↗
Marketing & Email

beehiiv

Starting Price$0.3/mo

beehiiv provides specialized capabilities in marketing & email, delivering intuitive features, flexible integration options, and team reliability.

Verdict:SELF HOST
Full beehiiv Review ↗
Deterministic Decision Engine

Side-by-Side Decision Scores Matrix

Evaluated using pure deterministic algorithm scoring across retention, migration savings, self-hosting viability, and build complexity.

Evaluation MetricFilloutbeehiiv
Primary VerdictSELF HOSTSELF HOST
KEEP Score (Retention Value)
44/100
64/100
SWITCH Score (Migration Savings)
86/100
81/100
SELF-HOST Score (OSS Viability)
100/100
100/100
AUTOMATE Score (Workflow Parity)
100/100
95/100
BUILD Score (Custom In-House Feasibility)
77/100
35/100
Engine Confidence60%70%
Build Complexity (1 - 5)2 / 53 / 5
API & Webhook Availability4 / 54 / 5
Vendor Lock-in Risk2 / 52 / 5
Data Portability Score4 / 54 / 5
Cost Structure Analysis

Verified Pricing Tiers Comparison

Fillout Pricing Tiers

Freemonthly billing
Free
Startermonthly billing
$15/mo
Promonthly billing
$40/mo
Businessmonthly billing
$75/mo

beehiiv Pricing Tiers

Standardmonthly billing
$0.3/mo
Free plan availablemonthly billing
Free
Enterprise/Custommonthly billing
$0/mo
Zero License Fees

Self-Hostable Open Source Options

Fillout Open-Source Options

Formbricks8.5k★

Open-source survey and experience management software.

OhMyForm3.2k★

Open-source form builder alternative to Typeform & Google Forms.

beehiiv Open-Source Options

Listmonk14k★

High-performance self-hosted newsletter and mailing list manager.

Mautic8k★

Open-source marketing automation platform.

Head-to-Head FAQs

Frequently Asked Questions: Fillout vs beehiiv

Which tool is easier to migrate or build custom?▼

Fillout has a build complexity of 2/5 and API availability of 4/5. beehiiv has a build complexity of 3/5 and API availability of 4/5.

Should I choose Fillout or beehiiv?▼

If you prioritize retention value and deep integrations, beehiiv leads with a KEEP score of 64/100. If you are looking to switch or optimize costs, review their secondary verdicts and open-source alternatives above.