Instantly vs Mailshake
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Instantly is the stronger AI pick in Sales Engagement: it has a visibility score of 10.1 versus 1.5 for Mailshake, and ranks ahead in 0% of the answers that name both.
Choose Instantly if…
- You want the brand AI engines rank higher (10.1 vs 1.5)
- AI answers describe it more positively (28% vs 0% positive)
- You prefer a larger, established vendor (51–200 employees)
- Cost-effective platform for cold email outreach
Choose Mailshake if…
- discounts for annual billing
- clear published annual prices
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Instantly | Mailshake |
|---|---|---|
| Visibility score | 10.1% | 1.5% |
| Change vs last week | up+0.1% | up+0.6% |
| Rank in Sales Engagement | #9 | #35 |
| Share of voice | 3% | 0.6% |
| Mentions this run | 19 | 4 |
| Positive in AI answers | 28% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Instantly +0.09999999999999964pp · Mailshake +0.6pp over 1 weekly runs.
Engine by engine
Instantly leads on 3 of 3 engines
Head to head in AI answers
1 engine answers name both brands
| Prompt | Engine | Instantly | Mailshake |
|---|---|---|---|
| What are the best Sales Engagement tools in 2026? | Perplexity | #13 | #11 |
Features, pricing & fit
| Dimension | Instantly | Mailshake |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | $47 / mo | — |
| Free plan | No | — |
| Deployment | Web-based | — |
| Integrations | 50+ | — |
| Support | Chat support, Premium live support, Dedicated account manager and shared Slack channel on Enterprise plans | Dedicated onboarding and campaign review sessions, Open office hours, Weekly live training, Get support |
| Founded | 2021 | 2015 |
| Headquarters | Sheridan, Wyoming, United States | Austin, Texas, United States |
| Employees | 51–200 | 11–50 |
| Funding | Bootstrapped | PE Growth (investor: Ramp Ventures) |
| Best for | Small teams, agencies and freelancers running cold email outbound at scale. | Sales leaders, sales reps, agencies and marketers running cold email outreach |
Plans side by side
Instantly
Mailshake
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Instantly
- Cost-effective platform for cold email outreach
- Strong for high-volume cold email outbound and lead generation
- Deliverability, warm-up and sending infrastructure
- Good for agencies managing many sending accounts
- Highest G2 rating among sales engagement platforms
- Narrow focus on cold email rather than an all-in-one platform
- Not a complete CRM or full sales engagement suite
Mailshake
- discounts for annual billing
- clear published annual prices
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Instantly vs Mailshake”, https://slateindex.ai/compare/instantly-vs-mailshake, data of Nov 3, 2026. Licence: CC BY 4.0.