Comparison

Spark Mail vs Microsoft Loop

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

Head to head
About

Spark Mail

Streamline your email and calendar management with an AI-powered assistant. Organize multiple accounts, declutter your inbox with smart sorting, and use AI to draft replies, summarize threads, and manage your schedule efficiently.

Highlights
  • Unified inbox for multiple email accounts
  • AI-powered email summarization and drafting
  • Smart Inbox for prioritizing emails
  • Calendar management and meeting scheduling
  • Gatekeeper for sender screening
  • Team collaboration on emails
  • Integrations with productivity apps
Features
Read full description

Manage priorities, not emails. Spark brings every account into one inbox and automatically surfaces what matters most — so nothing slips through the cracks. Loved by millions and named "Best of the App Store" by Apple. "It's a combination of polish, simplicity, and depth." — FastCompany "You can create an email experience that works for you." — TechCrunch EVERY ACCOUNT, EVERY EMAIL, IN ONE PLACE Connect Gmail, Outlook, iCloud, Yahoo, AOL, Hotmail, GMX, and any IMAP account in a single unified inbox. STAY ORGANIZED WITH SMART INBOX Important emails from real people rise to the top. Newsletters and notifications stay neatly grouped below, out of your way. GET MORE DONE WITH EMAIL ESSENTIALS Mark emails as done or set them aside for later Mute threads you're no longer following Schedule emails to send later — even if your device is off Find anything fast with Smart Search and Smart Folders PROTECT YOUR INBOX WITH GATEKEEPER Pre-screen new senders and block unwanted contacts instantly. PRIORITIZE WHAT MATTERS Mark important senders so their emails always stay on top. Group emails by sender or domain to keep your inbox clean. WRITE FASTER WITH SPARK +AI Summarize long threads, draft replies, rephrase messages, and adjust tone. Your AI Assistant helps you clear your inbox, translate emails, and keep projects moving. MANAGE YOUR CALENDAR AND MEETINGS Connect your calendars to stay on top of your day in one app. CONNECT YOUR FAVORITE TOOLS Link Spark to Notion, Asana, Things, and 10+ integrations to act on everything in your inbox. COLLABORATE WITH YOUR TEAM Co-author emails and discuss in private comments Assign messages so everyone knows who owns what Share secure links to specific emails Track read receipts to keep work moving SECURE AND PRIVATE Spark encrypts your data, runs on Google Cloud's secure infrastructure, and is fully GDPR compliant. TRY IT FREE Stick with our powerful free plan, or try Spark Plus or Spark Pro free for 7 days. Download Spark and reclaim your day. FAQ Is Spark the best email app for managing multiple accounts? Spark brings Gmail, Outlook, iCloud, Yahoo, and any IMAP account into one unified inbox, so you can manage every email in one place instead of switching between apps. How is Spark different from Apple Mail and Gmail? Spark helps you focus on what matters, not just read email. It automatically prioritizes messages from real people, keeps newsletters out of the way, and can summarize, draft, and follow up so less falls through the cracks. How does Spark help with email overload? Spark surfaces important messages first, lets you snooze emails until you're ready, and helps you reach Inbox Zero without the grind. Higher plans flag what needs attention so nothing gets missed. Does Spark have AI features? Yes. Spark uses AI to write faster, reply clearly, and summarize threads. On Plus, AI helps you make better inbox decisions. On Pro, it acts on your behalf — drafting, organizing, and following up. Is Spark good for team collaboration? Yes. Teams can share drafts, comment privately, assign messages, and manage shared inboxes — no forwarding chains. Collaboration is available on Pro. Can I schedule emails to send later? Yes. Schedule any email to send at the right time, or snooze incoming messages to return when you're ready. Is Spark free? Yes. Spark is free to download and use. Spark Plus is for professionals who want a more focused inbox; Spark Pro is for those who need Spark to handle follow-through so nothing gets missed. Is Spark available on Mac, iPhone, and iPad? Yes. Spark works on iOS, iPadOS and macOS, and stays in sync across all your devices. Spark is made by Readdle. Terms of Service: https://sparkmailapp.com/legal/terms Privacy Policy: https://sparkmailapp.com/legal/privacy-app Help: support@sparkmailapp.com

About

Microsoft Loop

This app facilitates collaborative thinking, planning, and creation across devices. It brings together teams, content, and tasks, allowing users to capture ideas, manage projects, and communicate in real-time. Seamlessly integrate with existing tools for a unified workflow.

Highlights
  • Co-creation experience
  • Content and task management
  • Idea capture and task lists
  • Project workspace
  • Real-time commenting and reactions
  • Customizable notifications
  • Cross-Microsoft 365 component editing
Features
Read full description

Think, plan and create together with Loop on the go. Microsoft Loop is a transformative co-creation experience that brings together teams, content and tasks across your tools and devices. Designed for the way you work, Loop can help you think, plan, and create together. • Capture ideas, create task lists, and insert photos to your Loop pages to express your thoughts. • Bring all your project content into a Loop workspace to help your team focus on what matters. • Comment and react in the app to quickly collaborate on the go. • Get only the notifications you care about and jump right back into what needs the most attention. • Edit and share Loop components across Microsoft 365 to help your team be on the same page in one place. To get started, download Loop, and sign in with your Microsoft Account or the account assigned to you by your work or school. This app is provided by either Microsoft or a third-party app publisher and is subject to a separate privacy statement and terms and conditions. Data provided through the use of this store and this app may be accessible to Microsoft or the third-party app publisher, as applicable, and transferred to, stored and processed in the United States or any other country where Microsoft or the app publisher and their affiliates or service providers maintain facilities. Please refer to the End User License Terms for Microsoft Loop. By installing the app, you agree to these terms and conditions. Privacy terms: https://aka.ms/privacy Please refer to the Microsoft Software License Terms, see “License Agreement” under Information. By installing the app, you agree to these terms and conditions.

Screenshots

Spark Mail4 screens
Microsoft Loop4 screens

Verdict

The call

Spark Mail and Microsoft Loop both sit at 4.6 stars, but that hides the real split: 61% of Spark Mail's written reviews are positive against 21% of Microsoft Loop's. Spark Mail also leads on update cadence (weekly vs monthly) and ratings volume (82K vs 4.9K). On price, rating, ads and in-app purchases 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. Spark Mail sells 13 in-app purchases, starting at $7.99 per month and Microsoft Loop sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Spark Mail against 4.6 for Microsoft Loop. That said, the two scores are not equally well evidenced: Spark Mail has 82K ratings behind it against 4.9K, so its average is the more settled of the two. Written reviews are what separate them: 61% of Spark Mail's written reviews are positive against 21% of Microsoft Loop's.

UpkeepUpdate frequency

Spark Mail ships an update weekly, Microsoft Loop monthly. Both last shipped on September 24, 2026.

Scorecard5 real differences · 6 level
Spark Mail versus Microsoft Loop: the parameters behind the verdict, then further details
ParameterSpark MailMicrosoft Loop
PriceFreeFree
Rating4.6 (82K ratings)4.6 (4.9K ratings)
Positive reviews61.4% of reviews — better20.7% of reviews
Number of ratings82K — better4.9K
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#126 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.4 — better18.0
Further details — not scored
Size382 MB165 MB
Age rating4+4+
DeveloperReaddle Technologies LimitedMicrosoft Corporation

Customer experience

Spark Mail

All ratings82,493 ratings
Positive91.2%
Neutral3.3%
Negative5.5%
Written reviews3,142 reviews
Positive61.4%
Neutral10.4%
Negative28.1%

Microsoft Loop

All ratings4,901 ratings
Positive90.1%
Neutral2.9%
Negative7.0%
Written reviews227 reviews
Positive20.7%
Neutral16.3%
Negative63.0%

User reviews

Spark Mail

From 82K App Store ratings

What we love

  • 🚀 Excellent email management features
  • 👍 Clean and intuitive user interface
  • 📂 Effective email organization and categorization
  • ⏱️ Efficient workflow with snooze, scheduling, and templates
  • 💻 Seamless cross-device experience

Room to improve

  • 🐛 Occasional sync and stability issues
  • 🔒 Concerns over privacy and data usage
  • 💰 Aggressive push for paid subscription
  • 📥 Unreliable notification delivery
  • 🔍 Inconsistent search functionality

Microsoft Loop

From 4.9K App Store ratings

What we love

  • 🚀 Efficient and useful
  • 👍 Clean and simple UI
  • 💡 Great integration with Microsoft 365
  • 🚀 Powerful collaboration features
  • 👍 Promising app with potential

Room to improve

  • 🐛 Buggy and unstable
  • 🔍 Limited functionality on mobile
  • 🔍 Missing key features compared to desktop
  • 🐛 Frequent crashes and sync issues
  • 🔍 Unintuitive navigation and user experience

Bugs and requests

Spark Mail

Reported bugs

5 issues
  • Emails disappearing from the inbox
  • Delayed email delivery and sync
  • Crashes and freezes when opening the app
  • Issues with Exchange calendar and account sync
  • Incorrect email grouping and threading

Requested features

5 requests
  • Improved spam filtering and email blocking
  • Option to disable email threading
  • Better calendar integration and management
  • Customizable email signatures and layouts
  • Expanded third-party app integrations

Microsoft Loop

Reported bugs

5 issues
  • App crashes on certain workspaces
  • Inability to save new content
  • Formatting issues with code blocks
  • Keyboard issues and cursor jumping
  • Inconsistent theme and UI behavior

Requested features

5 requests
  • Ability to duplicate pages
  • Improved handwriting and whiteboard support
  • Export/copy to Word or PDF
  • Offline functionality
  • Better access management and guest collaboration

In-app purchases

13 purchases

Spark Mail

Subscriptions10
  • Spark Premium7 Days trial2 variants$7.991 Month
  • Spark Plus Monthly7 Days trial2 variants$10.001 Month
  • Spark Premium7 Days trial$11.991 Month
Show 7 more
  • Spark Pro Monthly7 Days trial$20.001 Month
  • Get Spark Premium7 Days trial$41.991 Year
  • Spark Premium1 Year trial2 variants$59.991 Year
  • Get Spark Premium7 Days trial$59.991 Year
  • Spark Plus Annual7 Days trial$99.001 Year
  • Get Spark Premium7 Days trial$119.991 Year
  • Spark Pro Annual7 Days trial$199.001 Year
One-time3
  • Regular Powerbank$4.99
  • Big Powerbank$9.99
  • Huge Powerbank$19.99
4 purchases

Microsoft Loop

Subscriptions4
  • Microsoft 365 Personal$9.991 Month
  • Microsoft 365 Family$12.991 Month
  • Microsoft 365 Personal$99.991 Year
Show 1 more
  • Microsoft 365 Family$129.991 Year

Questions

Is Spark Mail free?
Spark Mail is free to download, with in-app purchases available.
Is Microsoft Loop free?
Microsoft Loop is free to download, with in-app purchases available.
Which has better reviews, Spark Mail or Microsoft Loop?
Spark Mail and Microsoft Loop are both rated 4.6 out of 5 on the App Store, from 82K and 4.9K ratings respectively.
Do Spark Mail or Microsoft Loop have ads?
Neither Spark Mail nor Microsoft Loop shows ads.
Which is updated more often, Spark Mail or Microsoft Loop?
Spark Mail ships an update weekly, and Microsoft Loop monthly. Most recently, Spark Mail was updated on September 24, 2026 and Microsoft Loop on September 24, 2026.

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