Why Settle for SaaS Vendor Lock-In?
Legacy property management platforms charge escalating monthly per-unit minimums while storing your financial records in closed proprietary databases. See how GarrisonOS compares.
| Core Capability | GarrisonOS | AppFolio® | Buildium® | Yardi® Breeze | Rent Manager® |
|---|---|---|---|---|---|
| Monthly Software Cost | $0 (AGPL v3) | $280/mo minimum ($1.40/unit) | $55–$375+/mo tiers | $100–$250/mo minimum | $1.00/unit/mo + setup |
| Data Sovereignty | 100% Sovereign (Your Hardware) | Vendor Cloud Silo | Vendor Cloud Silo | Vendor Cloud Silo | Proprietary Cloud/Hosted |
| Accounting Engine | Double-Entry GL + Trust Funds | Standard Double-Entry | Standard Double-Entry | Tiered Features | Double-Entry |
| Runtime Dependencies | 0 External npm Packages | Black Box | Black Box | Black Box | Legacy Windows/.NET |
| Full Database Backup | 1-Click .tar.gz (DB + Media) | Manual CSV Only | Manual CSV Only | Limited CSV Only | Backup file upon request |
| Source Code Access | 100% Extensible TypeScript | Closed Source | Closed Source | Closed Source | Closed Source |
| Per-Unit Pricing Penalties | None — Unlimited Units | Charges per unit per month | Charges per unit per month | Charges per unit per month | Charges per unit per month |
AppFolio®, Buildium®, Yardi® Breeze, and Rent Manager® are registered trademarks of their respective copyright and trademark owners. Reference to these commercial offerings is made solely under nominative fair use for identification and comparative informational purposes. GarrisonOS is an independent open-source project and is not affiliated with, sponsored by, or endorsed by any of these entities.
Pricing, feature tiers, and subscription terms for commercial platforms are derived from publicly available marketing materials, published pricing tables, and public documentation as of 2026 and are subject to change by vendors without notice. Potential users should confirm current pricing, terms, and capabilities directly with the respective providers.
Pre-Production Software Status: GarrisonOS is currently an early-stage pre-production prototype under active development. It does not claim parity across all niche legacy enterprise features of commercial platforms and is not currently certified for production business use.
Eliminate Recurring Unit Taxes
For a typical 50-unit residential portfolio, commercial SaaS platforms charge between $1,800 and $3,600+ every single year in recurring licensing. GarrisonOS eliminates this software overhead entirely.
Retain Complete Custody
When leaving proprietary SaaS platforms, extracting your complete historical general ledger entries and high-resolution tenant lease attachments can be difficult. With GarrisonOS, you retain raw database custody at all times.
Auditable Open Code
Every line of TypeScript code in GarrisonOS is open source under the AGPL v3 license. You can inspect, audit, and adapt the software to fit your unique operational workflows without vendor permission.