Otto Mail vs Spike: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Otto Mail and Spike side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Spike leads on lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Otto Mail
Gmail and Outlook, with an assistant that asks first
Best for you if:
- • People who live in Gmail or Outlook and want mail, calendar and to-dos in one app with an assistant that asks before acting
Spike
Manage your inbox with AI-powered efficiency and transform email into a collaborative workspace.
Best for you if:
- • You want conversational email
| At a Glance | Otto Mail | Spike |
|---|---|---|
Starts at | Free plan, paid from $6.99/mo, billed monthly Plus plan | Free plan, paid from $4/member/mo, billed monthly Team plan |
Category | Email Clients AI Assistants | Email Productivity |
Rating | n/a | 4.6/5 G2 4.6 261 reviews |
Free plan | Yes | Yes |
Choose Otto Mail or Spike?
Choose Otto Mail if
- People who live in Gmail or Outlook and want mail, calendar and to-dos in one app with an assistant that asks before acting
- You want gmail and Outlook, with an assistant that asks first
- You work in email clients, not email
Choose Spike if
- You want conversational email
- You want good design
- Budget matters ($4/member/mo, billed monthly vs $6.99/mo, billed monthly)
- You work in email, not email clients
In-Depth Analysis
Otto Mail
Gmail and Outlook, with an assistant that asks first
Key features
Spike
Manage your inbox with AI-powered efficiency and transform email into a collaborative workspace.
Spike's pricing is fair, offering a generous Free tier for basic personal use.
Strengths
- Pro: Conversational email
- Pro: Good design
- Pro: Team features
- Pro: Active development
- Pro: Fair pricing
Weaknesses
- Con: Limited features
- Con: Better alternatives exist
- Con: Learning curve
- Con: Feature gaps
- Con: Support varies
Key features
Plans and prices: Otto Mail vs Spike
| Tool | Plans and prices | Source |
|---|---|---|
| Otto Mail |
| ottomail.app/pricing read Nov 2, 2026 |
| Spike |
| spikenow.com/pricing read Nov 1, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Otto Mail pricing and Spike pricing.
Key Takeaways
Otto Mail
- Choose if you want gmail and Outlook, with an assistant that asks first
Spike
- Lower entry price: $4/member/mo, billed monthly vs $6.99/mo, billed monthly
What the data shows
On the data below, Spike leads on lower entry price. We do not name an overall winner for this pair.
- Only Spike has a published user rating (4.6/5 from 261 reviews); Otto Mail has none we can show.
- Spike has the lower entry price: $4/member/mo, billed monthly (Team) against $6.99/mo, billed monthly (Plus) for Otto Mail.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Otto Mail and Spike compare in 2026?
On the data below, Spike leads on lower entry price. We do not name an overall winner for this pair. Only Spike has a published user rating (4.6/5 from 261 reviews); Otto Mail has none we can show. Spike has the lower entry price: $4/member/mo, billed monthly (Team) against $6.99/mo, billed monthly (Plus) for Otto Mail. Both have a free plan.
What are Otto Mail and Spike used for?
Otto Mail: Gmail and Outlook, with an assistant that asks first. Spike: Manage your inbox with AI-powered efficiency and transform email into a collaborative workspace.
What does Otto Mail cost vs Spike?
Otto Mail's cheapest paid plan is Plus at $6.99/mo, billed monthly; it also has a free plan. Spike's cheapest paid plan is Team at $4/member/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Nov 2, 2026.
What's the main difference between Otto Mail and Spike?
Otto Mail focuses on gmail and Outlook, with an assistant that asks first. Spike's main strength: conversational email.