Every claim on this page links back to SleekFlow's own pricing pages or public reviews on G2, Capterra, or Trustpilot. If we get a row wrong, email founder@yinpsi.com and we'll fix it within 24 hours.
From the comparison conversations we've had with prospects already on SleekFlow. If one of these resonates, the rest of the page is for you.
SleekFlow's paid tier starts at $149/mo with just 3 users. YinPsi Growth is $29/mo with unlimited agents; Pro is $69/mo with the full AI Agent, payments, and attribution.
SleekFlow bills roughly $15/mo per connected WhatsApp number, which punishes multi-number teams and agencies. YinPsi supports multiple channels without a per-number tax on higher tiers.
SleekFlow's support runs on business hours. YinPsi runs its support inbox inside the product — message the founder on WhatsApp the way you talk to your own customers.
Reviewers cite thin reporting and note SleekFlow's recent price increases. YinPsi ships revenue attribution and a public changelog — you see exactly what you're paying for and what's shipping.
Where we're better, we say so. Where SleekFlow is better or partial, we say that too.
| Feature | YinPsi | SleekFlow |
|---|---|---|
| Entry paid tier | $29 / mo | $149 / mo |
| Forever-free planSleekFlow free tier is limited (50 contacts) | Partial | |
| No per-WhatsApp-number feeSleekFlow ~$15/mo per number | ||
| Unlimited agents on paid plans3 users on entry tier | ||
| WhatsApp / in-product supportSleekFlow is business-hours only | ||
| Built-in CRM pipeline | Partial | |
| Voice-note transcription | ||
| Shopify-native commerceBoth integrate Shopify + in-chat payments |
We only publish quotes we can link to a verified source. We haven't hand-verified specific SleekFlow quotes yet — so read the reviews yourself, unfiltered.
Bring your SleekFlow export. We move contacts and templates, connect your numbers with no per-number tax, and get you live — founder-led, typically the same day.
Built on Meta WhatsApp Cloud API
Direct integration with the official Meta Business Platform — no unofficial bridges or reverse-engineered protocols.
Encrypted in transit and at rest
TLS 1.3 on every endpoint via Cloudflare. AES-256-GCM for Meta access tokens and payment credentials at rest.
PCI-secured payments
Razorpay (PCI DSS Level 1) and Stripe (PCI DSS Level 1) handle every card. YinPsi servers never see card data.
Your data, your dashboard
Per-tenant data isolation and DPDP-aligned handling. Export everything via API. Delete your workspace and the data is gone within 30 days.
Independently auditable · AES-256-GCM tenant secrets · SOC 2 Type II on the 12-month roadmap.
Read our security practices →