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Invoice Fly VS StackMail

Compare Invoice Fly VS StackMail and see what are their differences

Invoice Fly

Invoice Fly is the best way to organize and run your home service business: Every feature you need - all in one place.

Rating
0 reviews
Pricing
Freemium Free trial $98.99 / Annually
Alternatives Is it good?
StackMail

Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!

Rating
0 reviews
Alternatives Is it good?
Sugarbug
Connect your tools into a living knowledge graph. Sugarbug captures every signal to deliver compounding insights and unified context. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Billing & Invoicing popularity
100% vs 0%
alternatives listed
47 vs 1

Base details

Website, pricing, platforms and company facts side by side.

Invoice Fly
StackMail
Website invoicefly.com stackmail.com
Pricing
Freemium Free trial $98.99 / Annually Official pricing
—
Company Startup from the United States · 20 - 49 employees · 2023 —
Listed in
Billing & Invoicing Invoice Management Estimates Budgeting Expense Management And Reporting Quotes Client Management Productivity +5
Email Email Service Provider Hosted Email Email Clients +1

About Invoice Fly and StackMail

In their own words, as submitted to SaaSHub.

Invoice Fly
StackMail

Invoice Fly simplifies billing and invoicing for small businesses and freelancers. Create professional invoices and estimates in minutes, customize them to match your brand, and send them directly to your clients. Get paid via PayPal or Stripe, and track payments. Available on desktop, Android,...

Read more about Invoice Fly

No description of StackMail yet.

Features and specs

What each product offers, as listed by its team.

Invoice Fly 3 features
StackMail 5 features
  • Invoice Maker
    Create & send professional invoices in seconds
  • Receipt Scanner
    Scan your receipts and track your business expenses
  • Online Payments
    Get paid in seconds with Stripe and PayPal integrations
  • Privacy-Focused
    StackMail emphasizes data privacy and security, offering encrypted email services without scanning user data for advertising purposes, appealing to privacy-conscious businesses.
  • Business-Oriented Features
    Designed specifically for businesses, it includes features like custom domain email, collaborative tools, calendars, and contact management tailored for professional use.
  • Competitive Pricing
    StackMail offers competitively priced plans compared to some larger email providers, making it accessible for small to medium-sized businesses.
  • No Ads
    Unlike some free email services, StackMail does not display ads to users, providing a cleaner and more professional email experience.
  • Custom Domain Support
    Users can easily set up email addresses with their own custom domain names, enhancing brand professionalism and consistency.

Possible disadvantages

  • Limited Brand Recognition
    As a newer or lesser-known provider compared to Google Workspace or Microsoft 365, StackMail may lack the trust and reputation that larger providers have established.
  • Fewer Third-Party Integrations
    Compared to major email service providers, StackMail may offer fewer integrations with third-party apps and services, limiting its versatility for some businesses.
  • Limited Advanced Features
    It may not offer the same breadth of advanced productivity and collaboration tools that come bundled with larger platforms like Microsoft 365 or Google Workspace.
  • Smaller User Community
    Due to a smaller user base, there may be fewer community resources, third-party tutorials, or troubleshooting forums available online.
  • Uncertain Long-Term Support
    As a smaller company, there might be concerns regarding the long-term viability, updates, and continued support of the service compared to more established providers.

Analysis

An editorial look at what each product does well and who it suits.

Invoice Fly
StackMail

Overall verdict

  • Invoice Fly is a solid, easy-to-use invoicing and estimating app well-suited for freelancers and small businesses that need to create professional invoices quickly on mobile or desktop.

Why this product is good

  • Simple, intuitive interface that lets you create invoices and estimates in minutes
  • Supports customizable templates so invoices look professional and branded
  • Available across mobile and web, enabling billing on the go
  • Includes useful features like payment tracking, tax calculation, and multi-currency support
  • Affordable pricing with a free tier suitable for solo entrepreneurs and small teams

Recommended for

  • Freelancers and independent contractors
  • Small business owners needing quick invoicing
  • Tradespeople and service providers who bill on-site
  • Startups looking for an affordable billing solution
  • Users who need to manage estimates and invoices from mobile devices

Overall verdict

  • StackMail is a solid choice for individuals and businesses seeking a secure, ad-free, privacy-focused email hosting solution with reliable features at a competitive price point.

Why this product is good

  • Ad-free email experience with no data mining or tracking of user content
  • Custom domain email hosting suitable for professional and business use
  • Competitive pricing compared to major enterprise email providers
  • Includes essential productivity tools like calendar, contacts, and webmail access
  • Strong emphasis on privacy and security in data handling
  • Straightforward setup process for custom domains

Recommended for

  • Small to medium-sized businesses wanting professional email addresses
  • Privacy-conscious individuals and organizations
  • Startups looking for cost-effective email hosting
  • Users seeking an alternative to Google Workspace or Microsoft 365
  • Freelancers and entrepreneurs needing custom domain email

Videos

Walkthroughs and reviews on video.

Invoice Fly 3 videos + Add
StackMail 0 videos + Add

Invoice Fly App Review - Is It Worth It?

More videos

  • - INVOICE FLY APP EXPLAINED - IS IT WORTH IT?
  • - Invoice Fly App Review (2025) – Honest Review: Is It Really Worth Using?

No StackMail videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Invoice Fly
StackMail
100% 100%
Billing & Invoicing
0% 0%
0% 0%
Email Clients
100% 100%
100% 100%
Invoice Management
0% 0%
0% 0%
Email
100% 100%

Questions & Answers

As answered by people managing Invoice Fly and StackMail.

What makes your product unique?

Invoice Fly's answer

Modern looks and simple to use, user-friendly

Why should a person choose your product over its competitors?

Invoice Fly's answer

Because of its price and it's efficiency.

How would you describe the primary audience of your product?

Invoice Fly's answer

Freelancers, Small Business and Blue Collar Contractors.

What's the story behind your product?

Invoice Fly's answer

We developed this app focusing on helping workers and small business that need to accelerate their business growth and need a simple and efficient invoicing solution.

Which are the primary technologies used for building your product?

Invoice Fly's answer

Flutter, iOS and Android technologies, APIs and Integrations.

User comments

Share your experience with using Invoice Fly and StackMail. For example, how are they different and which one is better?

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