InboxKit vs Cheapinboxes: Budget Cold Email Infrastructure Compared
InboxKit and Cheapinboxes both target budget cold email. Here is which actually delivers better value for your outbound operations.
InboxKit vs Cheapinboxes: Budget Segment Comparison
InboxKit and Cheapinboxes compete for budget-conscious cold email operators. Both offer shared Google Workspace infrastructure at low per-inbox prices. The trade-offs are similar — but are there meaningful differences between the two?
| Feature | Puzzle Inbox | Cheapinboxes |
|---|---|---|
| Google Workspace | ✓ | ✓ |
| Outlook 365 | — | — |
| Pre-warming | — | — |
| Starting price | $2-4/inbox | $1.50-3/inbox |
| Track record | Newer | Established |
| Support |
Core Similarities
Both providers target the budget segment. Both use shared Google Workspace infrastructure. Both lack pre-warming. Both have email-only support with slow response times. Both have high deliverability variability due to shared pools.
The Real Difference: Track Record
Cheapinboxes has been in market longer. InboxKit is newer with less operational history.
Deliverability
Both providers produce similar results:
- Reply rate: 1.5-2.5% average
- Spam placement: 10-20% variable
The Honest Answer
Neither provider is clearly better. The choice is essentially arbitrary. Both have the structural limitations of budget shared infrastructure.