SimplePractice is everywhere. Over 200,000 practitioners use it, making it the most popular practice management platform in the US. Its strength is insurance billing for mental health and small therapy practices. If you're a solo therapist who needs scheduling, documentation, and claim submission in one tool, SimplePractice is the default choice for good reason.
But SimplePractice's dominance in mental health creates a specific problem: practices outside that niche try to make it work and end up fighting the platform's assumptions. Functional medicine practitioners, DPC clinics, weight management programs, and cash-pay specialty practices all have workflows that SimplePractice wasn't designed to support.
Thimble Portal takes the opposite approach. It's designed for cash-pay and subscription-based practices that need patient engagement automation, white-label branding, and operational infrastructure. This comparison explains who should use which platform and why.
SimplePractice vs Thimble Portal: Quick Feature Comparison
- Pricing: SimplePractice starts at $29/mo per provider (Starter tier) up to $99/mo (Plus tier). Thimble Portal starts at $149/mo flat (no per-provider fee)
- Insurance billing: SimplePractice has full claim submission, ERA/EOB processing, and denial management. Thimble Portal does not support insurance billing
- Scheduling: SimplePractice has mature online booking with waitlists and recurring appointments. Thimble Portal's native scheduling is in active development
- Automation: SimplePractice has appointment reminders and basic recall. Thimble Portal has a visual workflow builder with 27 action types and conditional logic
- Patient portal: SimplePractice has a functional client portal. Thimble Portal is fully white-labeled to your brand, domain, and colors
- Billing model: SimplePractice focuses on per-visit billing. Thimble Portal focuses on subscription and membership billing through Stripe
- Encryption: SimplePractice uses standard encryption. Thimble Portal uses field-level AES-256-GCM across all data models
Where SimplePractice Wins
Insurance Billing
SimplePractice has the most complete insurance billing system in the small practice category. Electronic claim submission, ERA/EOB processing, superbills, and denial tracking are all built in. If you bill insurance for any portion of your practice, SimplePractice handles this workflow from scheduling through payment posting. Thimble Portal doesn't offer insurance billing and has no plans to add it.
Scheduling Maturity
SimplePractice's scheduling system is battle-tested across 200,000+ practices. Online booking, waitlists, recurring appointments, appointment-specific intake forms, and calendar sync all work reliably. Thimble Portal's native scheduling is in final development. For practices where scheduling is the primary workflow, SimplePractice is more mature today.
Pricing for Solo Practitioners
At $29-$99/mo (Starter through Plus tier), SimplePractice is more affordable for solo practitioners who primarily need scheduling, documentation, and insurance billing. Thimble Portal's $149/mo starting price includes more features (automation, CRM, analytics, white-label portal), but for a solo practitioner whose needs are straightforward, SimplePractice costs less.
Template Library
SimplePractice has an extensive library of documentation templates for various specialties. Treatment plans, progress notes, intake forms, and assessment tools are available out of the box. This head start matters for new practices that don't want to build everything from scratch.
Where Thimble Portal Wins
Subscription and Membership Billing
SimplePractice is built around per-visit billing. It handles copays, insurance claims, and sliding scale fees. But if your practice runs on monthly memberships, treatment packages, or subscription programs, SimplePractice's billing model doesn't fit.
Thimble Portal's Stripe-based billing handles recurring subscriptions, one-time packages, payment recovery sequences, and automatic proration for plan changes. Each clinic gets its own Stripe account, meaning your billing relationships belong to you. For cash-pay and membership-based practices, this is the billing model that actually matches your business.
Automation Beyond Reminders
SimplePractice's automation is limited to appointment reminders, basic recall messages, and billing notifications. These are table stakes.
Thimble Portal's automation engine has 27 action types in a visual builder. You can create multi-step workflows that trigger based on patient behavior, clinical events, billing status, or time-based rules. New patient onboarding over 30 days. Re-engagement sequences for inactive members. Payment failure recovery with escalating messages. Treatment milestone celebrations. These workflows run automatically with conditional branching (if patient did X, send Y; otherwise, send Z) and A/B message testing.
White-Label Patient Experience
SimplePractice's client portal is SimplePractice-branded. Your patients log into SimplePractice's interface, not yours. For practices building a premium brand, this undercuts your positioning. Thimble Portal is fully white-labeled: your domain, your logo, your colors, your email sender address. The patient never sees Thimble Portal's brand.
Patient CRM and Segmentation
SimplePractice tracks clients for scheduling and billing. Thimble Portal includes a full CRM with tagging, custom fields, saved filters, task management, and activity timelines. You can segment patients by program, engagement level, referral source, or any custom criteria. This turns your patient data into a growth tool rather than just a billing record.
Analytics and Business Intelligence
SimplePractice reports on billing and appointments. Thimble Portal provides 15 dashboard tabs covering revenue trends, patient retention, cohort analysis, churn risk, acquisition channel performance, and clinical metrics. For practices that want to make data-driven decisions about marketing spend, program design, and patient engagement, this is a significant difference.
Multi-Provider Pricing
SimplePractice charges per provider. At the Plus tier ($99/mo per provider), a 5-provider practice pays $495/mo for SimplePractice alone. Add Mailchimp, a CRM, and Zapier, and total costs approach $700/mo.
Thimble Portal's team tier is $349/mo plus $99 per additional provider. That same 5-provider practice pays $745/mo for Thimble Portal with automation, CRM, analytics, email, SMS, and the patient portal included. Slightly more than SimplePractice alone, but significantly less than SimplePractice plus the 3-4 tools you need alongside it.
Pharmacy and Fulfillment
SimplePractice has no pharmacy or supplement dispensary integration. Thimble Portal has a built-in pharmacy fulfillment pipeline that handles compounded medications, supplements, and GLP-1 fulfillment through integrated pharmacy partners. For practices that prescribe anything beyond standard medications, this is a workflow SimplePractice simply can't support.
The Core Difference: Visit-Based vs Relationship-Based
SimplePractice is organized around the visit. Schedule a session, document it, bill for it. This works perfectly for therapy, counseling, and insurance-based practices where the unit of care is the appointment.
Thimble Portal is organized around the patient relationship. Enroll in a membership, engage between visits, track treatment progress over months, automate ongoing communication, and manage the full lifecycle from acquisition to retention. This works for functional medicine, DPC, weight management, hormone therapy, and any practice where the goal is an ongoing relationship rather than a series of discrete visits.
Neither approach is wrong. They serve fundamentally different practice models.
Who Should Use SimplePractice
- Insurance-based therapy and counseling practices
- Solo practitioners who need affordable scheduling + billing + documentation
- Practices where the visit is the primary unit of care
- Practitioners who want a large template library out of the box
- Mental health professionals who need insurance claim management
Who Should Use Thimble Portal
- Cash-pay and membership-based practices (functional medicine, DPC, weight management, hormone therapy)
- Practices that want to automate patient engagement beyond appointment reminders
- Multi-provider practices looking for flat pricing instead of per-provider scaling
- Practices building a premium brand that needs white-labeled patient experience
- Practices prescribing compounded meds or supplements that need pharmacy fulfillment
- Practices that want CRM, analytics, and automation without bolting on 3-4 separate tools
See Which Platform Fits Your Practice
Book a 15-minute demo and we'll show you how Thimble Portal handles your specific workflows, from intake through ongoing patient engagement. Ask about The Switch Program: first month free + free data migration from SimplePractice.
Book a Demo →Frequently Asked Questions
- Is Thimble Portal a good SimplePractice alternative in 2026?
- For cash-pay and membership-based practices, yes. Thimble Portal is purpose-built for subscription billing, patient engagement automation, and white-label branding. SimplePractice is purpose-built for insurance billing and visit-based therapy. If you bill insurance or primarily need scheduling and documentation, SimplePractice is the better fit. If you run a functional medicine, DPC, weight management, or other cash-pay practice, Thimble Portal addresses your actual workflows.
- Is Thimble Portal cheaper than SimplePractice?
- For solo practitioners, SimplePractice starts at $29/mo (Starter) versus Thimble Portal's $149/mo. For multi-provider practices, the math is closer: a 5-provider practice pays $495/mo for SimplePractice Plus tier, plus $150-300/mo for email marketing, CRM, and automation tools. Thimble Portal's $745/mo includes all of those features natively. Total cost of ownership favors Thimble Portal for practices that need more than scheduling and billing.
- Can Thimble Portal replace SimplePractice for a therapy practice?
- Not if you bill insurance. Thimble Portal does not support insurance claims, ERA/EOB processing, or denial management. For insurance-based therapy practices, SimplePractice remains the better fit. Thimble Portal targets cash-pay and membership-based practice models.
- Does Thimble Portal have telehealth video?
- Thimble Portal integrates with video platforms rather than building its own. It supports scheduling and workflow automation around telehealth visits. SimplePractice includes built-in video. For practices that need native video, SimplePractice has this out of the box.
- How hard is it to switch from SimplePractice to Thimble Portal?
- Thimble Portal provides migration support for patient records and billing data. Most practices run both platforms in parallel for 2-4 weeks. New patients go through Thimble Portal immediately. Existing patients transition as they come in for their next visit.
- Can I use both SimplePractice and Thimble Portal together?
- Yes. Some practices use SimplePractice for insurance billing and clinical documentation while using Thimble Portal for patient engagement automation, the branded portal, and CRM. This combination works well for hybrid practices that have both insurance and cash-pay programs.