Comparison

Superhuman Mail vs Ruby for Relationships

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Superhuman Mail

This email application streamlines inbox management with AI-powered drafting and summarization. It helps users prioritize important messages, schedule emails for optimal delivery, and collaborate with teams through shared email views and integrated CRM tools. Save time and improve responsiveness with advanced features.

Highlights
  • AI email drafting
  • Automatic email summarization
  • Customizable inbox triage
  • Scheduled email delivery
  • Email sharing and commenting
  • Calendar integration
  • CRM integrations (HubSpot, Salesforce)
Features
Read full description

Superhuman Mail is the most productive email app ever made. Designed to help you fly through your inbox, be more responsive to what matters most, and collaborate faster than ever before, Superhuman Mail helps teams on Gmail and Outlook save 4+ hours per person each week. FLY THROUGH YOUR INBOX 2X FASTER Write better and faster with AI that matches your unique style for each person. Get draft replies on every email that needs a response, ready to edit and send. Turn your thoughts into polished emails in seconds with Write with Voice. Stay a step ahead with an automatic 1-line summary above every conversation. Automate phrases and entire emails with Snippets. BE MORE RESPONSIVE TO WHAT MATTERS MOST Automatically triage incoming email with customizable inbox splits, so you can always focus on what matters most. Avoid the clutter for good with Auto Archive. Never let a follow-up slip, with automatic reminders to reply. Send emails when they're most likely to be opened, so you land at the top of your recipient's inbox at just the right time. COLLABORATE FASTER THAN EVER BEFORE Share a live view of any email, and add comments for your team—no need to repeatedly screenshot, forward, or bcc. See your calendar without leaving your inbox. Get full context on your customers and deals with HubSpot and Salesforce directly integrated. Connect all your Gmail and Outlook accounts to AI tools like Claude and ChatGPT via the Superhuman Mail MCP. Teams save 20 million hours every single year with Superhuman Mail. https://superhuman.com/terms

About

Ruby for Relationships

This AI-powered application streamlines contact and relationship management for businesses and individuals. It automatically syncs with your email and calendar to update contact information and provides insights into team engagement with clients and partners.

Highlights
  • Automated contact management
  • Email and calendar sync
  • Relationship insights
  • Private and shared notes
  • Team contact leverage
Read full description

Ruby is an AI app that helps companies and individuals better manage relationships with their customers and partners. Ruby eliminates data entry by connecting to a company’s email, calendar, and other data sources to mine and maintain contact and relationship information automatically. The app allows users to quickly contact customers and partners, keep notes, manage relationships, and leverage the relationships of coworkers. Key Features: - Automate Contact Management: Sync with your company's existing email and calendar to automatically create and clean all your contact information. - Leverage Relationships with Coworkers: Track touches, take private or shared notes, and explore the relationships between your teammates and contacts. - Track Engagement Insights: Know who’s talking to whom in your organization and understand how you can better engage with your customers and partners.

Screenshots

Superhuman Mail4 screens
Ruby for Relationships4 screens

Verdict

The call

The clearest difference is in-app purchases: Ruby for Relationships at none against Superhuman Mail's 1. Ruby for Relationships also leads on rating (5.0 vs 4.6) and iOS requirement (18.0 vs 26.0). Superhuman Mail's advantage is ratings volume (3.7K vs 6). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Superhuman Mail sells 1 in-app purchase, starting at $29.99 per month. Ruby for Relationships asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ruby for Relationships holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Superhuman Mail has 3.7K ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

Superhuman Mail ships an update weekly, Ruby for Relationships every 9 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 5 level
Superhuman Mail versus Ruby for Relationships: the parameters behind the verdict, then further details
ParameterSuperhuman MailRuby for Relationships
PriceFreeFree
Rating4.6 (3.7K ratings)5.0 (6 ratings) — better
Positive reviews41.0% of reviews—
Number of ratings3.7K — better6
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS26.018.0 — better
Further details — not scored
Size109 MB35 MB
Age rating12+17+
DeveloperSuperhuman LabsVeeva Systems Inc.

Customer experience

Superhuman Mail

All ratings3,699 ratings
Positive89.7%
Neutral1.7%
Negative8.7%
Written reviews349 reviews
Positive41.0%
Neutral6.0%
Negative53.0%

Ruby for Relationships

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Superhuman Mail

Reported bugs

4 issues
  • Login issues and account activation problems
  • Emails not loading or syncing properly
  • Formatting issues in email threads
  • Crashes and freezes on various devices

Requested features

5 requests
  • Unified inbox for multiple accounts
  • Better calendar integration
  • More customization options
  • Improved mobile app experience
  • Table support in email composition

Ruby for Relationships

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Superhuman Mail

Subscriptions1
  • Monthly Subscription$29.991 Month
None

Ruby for Relationships

No in-app purchases

Questions

Is Superhuman Mail free?
Superhuman Mail is free to download, with in-app purchases available.
Is Ruby for Relationships free?
Ruby for Relationships is free to download, with no in-app purchases.
Which has better reviews, Superhuman Mail or Ruby for Relationships?
Ruby for Relationships is rated higher. Superhuman Mail averages 4.6 out of 5 from 3.7K ratings, while Ruby for Relationships averages 5.0 from 6 ratings.
Do Superhuman Mail or Ruby for Relationships have ads?
Neither Superhuman Mail nor Ruby for Relationships shows ads.
Which is updated more often, Superhuman Mail or Ruby for Relationships?
Superhuman Mail ships an update weekly, and Ruby for Relationships every 9 days. Most recently, Superhuman Mail was updated on October 12, 2026 and Ruby for Relationships on September 29, 2026.

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