SoloRiff

SoloRiff vs Instantly

Cold email sequencer with inbox rotation and warmup

Instantly is a sending platform: it rotates inboxes, warms domains and delivers sequences you write, at volume. SoloRiff overlaps on sending but starts a step earlier — it decides who to email and writes each message individually. Instantly is the better tool if you have your own lists and copy and need volume; SoloRiff is the better tool if producing those is the work you want gone.

InstantlySoloRiff
Starting pointA list you uploadYour website URL
CopyTemplates with spintaxWritten per recipient
RepliesUnified inbox to work by handClassified, drafted, meetings detected
Pricing shapeMonthly plan by volumePer email sent

Choose Instantly if

  • You send at high volume across many rotating inboxes
  • You have a working list-building process already
  • Deliverability tooling and warmup are your main concern

Choose SoloRiff if

  • You want the list and the copy produced for you
  • You are one founder, not an outbound team
  • You want replies handled and meetings surfaced, not just sends

The quickest way to compare is to watch it run on your own site.

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