iGMS vs Streamline: Head-to-Head Comparison
TL;DR: iGMS and Streamline both target short-term rental operators. Pick **[iGMS](/igms-review/)** if: Airbnb-first hosts who want AI-drafted guest replies, a unified inbox, and basic team tools at a price point that doesn't require a sales call. Pick **[Streamline](/streamline-review/)** if: Enterprise PMCs that want one vendor, one contract, and one invoice across PMS, CRM, revenue management, trust accounting, and phone systems — and have the budget to justify it.
Category: Property Management Software · iGMS · Streamline
At a glance
| iGMS | Streamline | |
|---|---|---|
| Category | Affordable AI-messaging-first PMS for individual Airbnb hosts and small portfolios | Enterprise unified platform for high-performing vacation rental management companies |
| Founded | 2015 | — |
| HQ | North Vancouver, BC, Canada | Chandler, AZ, USA |
| Pricing | from $20/mo | quote-based |
| Best for | Airbnb-first hosts who want AI-drafted guest replies, a unified inbox, and basic team tools at a price point that doesn’t require a sales call. | Enterprise PMCs that want one vendor, one contract, and one invoice across PMS, CRM, revenue management, trust accounting, and phone systems — and have the budget to justify it. |
| Overall | 7.1/10 | 5.1/10 |
Feature-by-feature
| Feature | iGMS | Streamline |
|---|---|---|
| Channel manager | ✅ Native | ✅ Native |
| Unified inbox | ✅ Native | ✅ Native |
| Direct booking site | ⚠️ Partial | ✅ Native |
| Task management | ✅ Native | ✅ Native |
| AI guest messaging | ✅ Native | ⚠️ Partial |
| AI that takes actions | ⚠️ Partial | — |
| Automation rules | ✅ Native | ✅ Native |
| Pricing optimizer | 🔌 Via integration | ✅ Native |
| Open API | ⚠️ Partial | ✅ Native |
| Mobile app | ✅ Native | ✅ Native |
| Multi-calendar | ✅ Native | ✅ Native |
| Accounting / reporting | ⚠️ Partial | ✅ Native |
| Revenue management | ⚠️ Partial | ✅ Native |
Scores by dimension
| Dimension | iGMS | Streamline |
|---|---|---|
| Ease of use | 8/10 🏆 | 5/10 |
| Features depth | 6/10 | 9/10 🏆 |
| Value for money | 8/10 🏆 | 5/10 |
| Support | 6/10 🏆 | 5/10 |
| AI capability | 7/10 🏆 | 4/10 |
| Scalability | 5/10 | 9/10 🏆 |
| Learning curve | 8/10 🏆 | 3/10 |
| Pricing transparency | 9/10 🏆 | 1/10 |
Where iGMS wins
- Ease of use — 8/10 vs 5/10
- Value for money — 8/10 vs 5/10
- AI capability — 7/10 vs 4/10
- Learning curve — 8/10 vs 3/10
- Pricing transparency — 9/10 vs 1/10
Where Streamline wins
- Features depth — 9/10 vs 6/10
- Scalability — 9/10 vs 5/10
Which one should you pick?
Pick iGMS if: Airbnb-first hosts who want AI-drafted guest replies, a unified inbox, and basic team tools at a price point that doesn’t require a sales call. Pick Streamline if: Enterprise PMCs that want one vendor, one contract, and one invoice across PMS, CRM, revenue management, trust accounting, and phone systems — and have the budget to justify it.
Pick by operator profile
| Profile | Winner | Why |
|---|---|---|
| Solo host (1-5 units) | iGMS | Higher profile fit (7.7 vs 4.4). |
| Boutique operator (6-20 units) | iGMS | Higher profile fit (7.4 vs 6.1). |
| Professional PM (20+ units) | Streamline | Higher profile fit (7.3 vs 6.8). |
| Enterprise (100+ units) | Streamline | Higher profile fit (7.6 vs 6.5). |
| Multi-market operator | Streamline | Higher profile fit (7.3 vs 7.0). |
| Tech-forward, AI-first | iGMS | Higher profile fit (7.5 vs 6.8). |
| Budget-conscious | iGMS | Higher profile fit (8.2 vs 4.1). |
iGMS in one paragraph
iGMS — Affordable AI-messaging-first PMS for individual Airbnb hosts and small portfolios. Strengths: Airbnb Preferred Software Partner, Booking.com Certified Connectivity Partner, Vrbo Connected Partner; AI guest-messaging automation is the headline feature and it works on Airbnb’s native channel; Strong native mobile app (iOS + Android) with feature parity. Weaknesses: Messaging has a perceptible delay — not true real-time on incoming guest messages; 30-day multi-property calendar view missing; UX feels cramped at scale. Full iGMS review →
Streamline in one paragraph
Streamline — Enterprise unified platform for high-performing vacation rental management companies. Strengths: True all-in-one — PMS + CRM + revenue management + trust accounting + phone system under one roof; NC-accredited trust accounting — serious for enterprise operators; 100+ preferred partner ecosystem. Weaknesses: Reputation for bugs and slow issue resolution — “weeks to fix”; Documented pattern of needing supplementary tools “despite outrageous costs”. Full Streamline review →
See also
- All Property Management Software comparisons
- 5stelle vs iGMS
- 5stelle vs Streamline
- AirDNA vs iGMS
- AirDNA vs Streamline
- Amenitiz vs iGMS
- Amenitiz vs Streamline
FAQ
Is iGMS or Streamline cheaper?
iGMS publishes entry-level pricing; Streamline requires a sales call, so the answer depends on the quote you get.
Does iGMS have better AI than Streamline?
iGMS scores higher on ai capability — 7/10 vs 4/10.
Which is easier to use, iGMS or Streamline?
iGMS scores higher on ease of use — 8/10 vs 5/10.
Can I switch from iGMS to Streamline?
Yes, but plan for migration cost: channel reconnections, template rebuilds, automation recreation, and team retraining. Both iGMS and Streamline export reservation history; neither exports their automation rules cleanly. Run both in parallel for at least two weeks before cutting over.