Collectly vs Inbox Health
Two Patient Payments & Billing vendors, side by side. Facts from public sources; judgments are ours.
At a glance
Derived from public facts · a rough scale, not a ranking
| Collectly | Inbox Health | |
|---|---|---|
| Pricing model | Subscription (per user or PMPM) · module and volume based, quote only | Not published · Custom quotes |
| Speed to go live | 4 to 8 weeks with EHR sync | Integrates with common PM systems |
| Automation model | Software platform · patient billing plus AI agents | Software platform · Automated patient billing outreach |
| Built for | Mid-size groups, Enterprise systems, Billing companies | Small practices, Mid-size groups, Billing companies |
| Security posture | HITRUST, SOC 2 Type II, PCI DSS, HIPAA | SOC 2 Type II, HIPAA, PCI DSS |
| Company maturity | 9 yrs (est. 2017) | 12 yrs (est. 2014) |
| Financial backing | $34M · Series A | $60M+ · Series B+ |
| Named customers | None public | 2 named |
| Published results | Specific numbers public | Specific numbers public |
| Documented integrations | 4 listed | 5 listed |
| Third-party validation | None found | None found |
Bottom line
- Pick Collectly if patient balances sit unpaid for 60+ days and you want digital-first statements and payments live within two months.
- Pick Inbox Health if you are a billing company or practice that wants patient statements, reminders, and payments automated across email, text, and paper mail.
Collectly
Automated patient billing for medical groups
- Founded
- 2017
- HQ
- Santa Monica, CA
- Stage
- Series A
- Raised
- $34M
What it does
- Digital-first patient statements by text and email
- Self-serve payments and flexible payment plans
- AI agents answer patient billing questions
- Automated follow-up sequences until balance resolution
- Collections and DSO analytics for billing teams
- Connects to 30+ EHR and PM platforms
Where it's strong
- Purpose-built for medical groups and ambulatory practices, with quick EHR-connected deployment instead of an enterprise implementation.
- Publishes strong outcome claims: patient collections up 75%, DSO down to about 12 days, 93% patient satisfaction.
- Sapphire-led $29M Series A and 3x annual revenue growth suggest real momentum in the mid-market.
What buyers should weigh
- It has raised $34M against far larger competitors like Cedar, so weigh long-term vendor durability for enterprise commitments.
- Named customers are scarce in public materials; insist on references from groups your size and specialty.
- Hospital-scale organizations with deep Epic workflows are outside its sweet spot.
Integrations
Inbox Health
Patient billing communication for billing teams
- Founded
- 2014
- HQ
- New Haven, CT
- Stage
- Series B+
- Raised
- $60M+
What it does
- Patient billing platform built for medical billing companies
- Automated statement cycles across email, text, mail, and phone
- Built-in patient support that resolves most billing questions
- Online payments and payment plans
- Syncs balances with practice management systems
Where it's strong
- The only platform in this set designed around third-party billing companies, which serve thousands of small practices the enterprise vendors ignore.
- Proven distribution: 2,600+ practices reached through billing company partners and 3.5M+ patients have paid a bill on it.
- Its patient support layer answers billing questions itself, reported at 90% resolution, which directly cuts billing company phone load.
What buyers should weigh
- If you are a practice rather than a billing company, you will usually access it through a partner, which adds a layer to the relationship.
- Its September 2025 $20M raise was structured as other equity rather than a priced Series C, worth understanding in diligence.
- Channel focus means the patient experience can vary with how well your billing company configures it.
Named customers
CHE Behavioral Health Services · AdvancedCare
Integrations
Compare against the rest of Patient Payments & Billing
Deciding between these two?
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