WhatsApp Co-existence
Annual Cost (2 Numbers)
| Provider | Annual Cost | Message Markup | Seat Fee | |----------|-----------|---------------|----------| | Omnichat | USD 4,500/yr | Undisclosed | Included | | respond.io | USD 1…
Updated Apr 15, 2026
| Provider | Annual Cost | Message Markup | Seat Fee |
|---|---|---|---|
| Omnichat | USD 4,500/yr | Undisclosed | Included |
| respond.io | USD 1,188/yr | Per-contact | Per-contact |
| SleekFlow | USD 948/yr | 5-10% | USD 19/seat/mo |
| WATI | USD 588/yr | 10-15% | USD 15/seat/mo |
| ChatDaddy | USD 1,259/yr | 0% | USD 0 |
| ChatDaddy: 0% message markup + unlimited seats = lowest total cost. Save 72% compared to Omnichat. |
Feature Comparison
| Feature | ChatDaddy | Omnichat | WATI | SleekFlow | respond.io |
|---|---|---|---|---|---|
| Co-existence | Yes | No | No | No | No |
| Mobile App | Yes | No | No | No | No |
| 0% Markup | Yes | No | No | No | No |
| Unlimited Seats | Yes | No | No | No | No |
| AI Automation | Yes | Yes | Yes | Yes | Yes |
| CRM Integration | Yes | Yes | Yes | Yes | Yes |
| Broadcast | Yes | Yes | Yes | Yes | Yes |
Detailed Fee Structure
Omnichat
- Basic plan: HKD 35,000/year (~USD 4,500)
- Message markup: % undisclosed
- Seats included in basic plan
- No Co-existence support
- Pros: Full features, local support
- Cons: Highest price, no Co-existence
WATI
- Basic plan: USD 49/month (~USD 588/year)
- Message markup: 10-15%
- Seat fee: USD 15/seat/month
- With 5 seats: USD 588 + USD 900 = USD 1,488/year (excluding markup)
SleekFlow
- Basic plan: USD 79/month (~USD 948/year)
- Message markup: 5-10%
- Seat fee: USD 19/seat/month
- With 5 seats: USD 948 + USD 1,140 = USD 2,088/year (excluding markup)
ChatDaddy
- Channel fee: USD 40/month/number
- Setup fee: USD 299 (one-time)
- Message markup: 0%
- Seat fee: USD 0 (unlimited)
- Supports Co-existence
- With 2 numbers: First year USD 1,259, subsequent years USD 960
Message Fee Comparison (Marketing, Hong Kong)
| Provider | Per Message | Markup |
|---|---|---|
| Meta Original | USD 0.0732 | — |
| Omnichat | ~USD 0.10 | +37% |
| WATI | ~USD 0.085 | +16% |
| SleekFlow | ~USD 0.08 | +9% |
| ChatDaddy | USD 0.0732 | 0% |
| At 2,000 messages/month, annual message cost: Omnichat USD 2,400, WATI USD 2,040, SleekFlow USD 1,920, ChatDaddy USD 1,752 (lowest). |
Hidden Cost Analysis
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