Choose Instantly if
…you send very high volumes of cold email only and want a large database built in.
Choose Syntr if
…replies need to continue on WhatsApp, go into a CRM and nurture flows.
| Syntr | Instantly | |
|---|---|---|
| Cold email sequences | Yes | Yes |
| Mailboxes and warm-up | Warm-up; buy mailboxes in the app | Unlimited mailboxes and warm-up; buy mailboxes in the app |
| Contact database | Web discovery, or bring your Apollo key | 450M+ contacts, billed as data credits |
| Broadcasts, flows, shared inbox | No | |
| Newsletters and flows | Yes | No |
| CRM | Included | Add-on, $47–$97/mo |
| Entry price | Free; Basic $49/mo | Growth $47/mo |
Sources, checked 11 Oct 2026:Instantly pricing
Other comparisons
Syntr vs
Mailchimp
Email marketing, plus outreach and WhatsApp, without paying for unsubscribes.
Syntr vs
Throxy
Meetings booked for you — and every lead in your own account.
Syntr vs
lemlist
WhatsApp-first outreach, with marketing built in.
Syntr vs
Apollo
Keep your Apollo data. Send it somewhere that protects your domain.
Start with 500 leads, free.
Set up your first sequence today. Upgrade when it works.