# Spark Mail vs Microsoft Loop

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.

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.

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.

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

## The numbers

| Metric | Spark Mail | Microsoft Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (82K ratings)](https://appshunter.io/ios/app/spark-mail-ai-email-assistant/id997102246/reviews) | [4.6 (4.9K ratings)](https://appshunter.io/ios/app/microsoft-loop/id1637682491/reviews) |
| Number of ratings | **82K** | 4.9K |
| Positive reviews | **61.4% of reviews** | 20.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#126** | — |
| Size | 382 MB | 165 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Readdle Technologies Limited](https://appshunter.io/developer/285035419) | [Microsoft Corporation](https://appshunter.io/developer/298856275) |

## What reviewers say

### Spark Mail

[App page](https://appshunter.io/ios/app/spark-mail-ai-email-assistant/id997102246)

**Currently charting:** #126 Top Grossing · Productivity (US App Store)

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:** Family Sharing, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Premium | $7.99 | per month |
| Spark Plus Monthly | $10.00 | per month |
| Spark Premium | $11.99 | per month |
| Spark Pro Monthly | $20.00 | per month |
| Get Spark Premium | $41.99 | per year |
| Spark Premium | $59.99 | per year |
| Get Spark Premium | $59.99 | per year |
| Spark Plus Annual | $99.00 | per year |
| Get Spark Premium | $119.99 | per year |
| Spark Pro Annual | $199.00 | per year |
| Regular Powerbank | $4.99 | one-time |
| Big Powerbank | $9.99 | one-time |
| Huge Powerbank | $19.99 | one-time |

**What reviewers like**

- 🚀 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

**What reviewers complain about**

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

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/microsoft-loop/id1637682491)

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:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Microsoft 365 Personal | $9.99 | per month |
| Microsoft 365 Family | $12.99 | per month |
| Microsoft 365 Personal | $99.99 | per year |
| Microsoft 365 Family | $129.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*