ARGUS vs Solsten: A Feature-by-Feature Comparison for CRE Professionals

If you’ve been underwriting commercial real estate deals, chances are you’ve encountered ARGUS Enterprise — the industry’s 35-year incumbent for institutional-grade property analysis.

But with licensing costs ranging from $3,000 to $10,000 per seat per year, many investors and analysts are asking: is there a better way?

We built Solsten to answer that question. Here’s an honest, feature-by-feature comparison.

Where Both Platforms Deliver

Both Solsten and ARGUS provide:

Full proforma engines (annual and monthly)
Rent roll timeline visualization
Recovery modeling (NNN, Base Year Stop, Modified Gross)
GP/LP waterfall distributions
Multi-loan debt modeling with amortization schedules
Exit scenario analysis with IRR and equity multiples

For core CRE underwriting, both platforms cover the essentials.

Where Solsten Goes Further

ML-Powered Expense Forecasting

ARGUS uses static assumptions — you input a growth rate, and it compounds annually. Solsten does that too, but adds a machine learning layer that learns from your property’s actual payment history.

As you enter actuals, Solsten calculates observed escalation rates and blends them with your assumptions based on statistical confidence. The more data you provide, the more accurate your forecasts become.

Fluid Timeline Intelligence

ARGUS snapshots your analysis at a point in time. Solsten uses a Fluid Timeline Engine that automatically adjusts calculations as time passes:

Vacancies auto-extend if they exceed the original forecast
Lease expirations update projections dynamically
Expense escalations compound from actual payment dates

No manual updates needed.

AI Assistant for Model Q&A

Solsten includes Saga AI assistant for underwriting workflow questions. Instead of generic chatbot responses, Saga is designed to use your property context so you can ask what changed and why across assumptions, timelines, NOI, cash flow, and return outputs.

For a full product-level overview, see our AI assistant for CRE underwriting on the ARGUS alternative page.

Cloud-Based Collaboration

ARGUS is desktop software. Solsten is cloud-native — share properties with team members, manage access with role-based permissions (owner, admin, analyst, viewer), and collaborate in real time from any browser.

15-Factor Risk Scoring

Solsten automatically scores every property across 15 weighted risk factors including WALT, tenant concentration, DSCR, LTV, break-even occupancy, and debt maturity. ARGUS doesn’t offer automated risk assessment.

Where ARGUS Still Leads

We believe in transparency:

IFRS 16 / ASC 842 compliance — critical for public REITs
35+ years of institutional acceptance — deeply embedded in workflows
On-premise deployment — required by some compliance frameworks

The Bottom Line

For individual investors, small-to-mid firms, and growing portfolios, Solsten provides institutional-grade analysis at 90%+ lower cost with ML features ARGUS doesn’t have.

For public REITs with IFRS mandates and existing ARGUS infrastructure, the switching cost may still favor staying.

The best way to decide? Try Solsten free — no credit card required — and run a side-by-side comparison with your own data.

FAQs

Is Solsten really free? Yes — Solsten is 100% free with no subscription fees or hidden paywalls. You get full access to DCF modeling, proforma generation, IRR/NPV calculations, and portfolio management at no cost.

Can Solsten replace ARGUS for my team? For most small-to-mid firms and individual investors, yes. Solsten covers all core underwriting functions — proforma, rent roll, recoveries, waterfalls, and exit analysis — plus ML-powered forecasting that ARGUS doesn’t offer. Public REITs requiring IFRS 16 compliance may still need ARGUS.

What metrics does Solsten calculate automatically? Solsten calculates IRR (levered and unlevered), NPV, cash-on-cash return, cap rates, DSCR, NOI, and full operating statement projections.

Does Solsten have an AI assistant for underwriting? Yes. Solsten includes Saga AI assistant so you can ask model-specific questions during underwriting and review. See the AI assistant for CRE underwriting comparison.

How does ML-powered forecasting work? As you enter actual expense payments, Solsten calculates observed escalation rates and blends them with your assumptions based on statistical confidence. The more data you provide, the more accurate your forecasts become — something static tools like ARGUS can’t do.

The Best Free Commercial Property Valuation Tools (2025) — Hands-on review of 8 free platforms
Top 10 Commercial Real Estate Portfolio Management Software — Full platform comparison
Mastering IRR and NPV — Deep dive into the return metrics Solsten calculates automatically

Explore Solsten

ARGUS Alternative — See the Full Comparison — Side-by-side breakdown of Solsten vs ARGUS
CRE Proforma Software — Institutional-grade operating statements with ML-powered forecasting
All Features — Everything Solsten offers for CRE analysis