# Spark Mail vs DeepSight

The clearest difference is review sentiment: DeepSight at 100% against Spark Mail's 61%. DeepSight also leads on in-app purchases (none vs 17) and rating (5.0 vs 4.6). Spark Mail's advantage is ratings volume (83K vs 1) and update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Spark Mail sells 13 in-app purchases, starting at $7.99 per month. DeepSight asks for nothing beyond the download.

DeepSight holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Spark Mail has 83K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 61% of Spark Mail's written reviews are positive against 100% of DeepSight's.

Spark Mail ships an update weekly, DeepSight every 3 weeks. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Spark Mail | DeepSight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (83K ratings)](https://appshunter.io/ios/app/spark-mail-ai-email-assistant/id997102246/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deepsight/id1280256793/reviews)** |
| Number of ratings | **83K** | 1 |
| Positive reviews | 61.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#104** | — |
| Size | 388 MB | 20 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Readdle Technologies Limited](https://appshunter.io/developer/285035419) | [DeepSight Realite Augmentee Inc](https://appshunter.io/developer/1280256792) |

## What reviewers say

### Spark Mail

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

**Currently charting:** #104 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


### DeepSight

[App page](https://appshunter.io/ios/app/deepsight/id1280256793)

This platform transforms 3D objects into interactive augmented reality experiences. It allows users and businesses to integrate AR into daily operations, enhancing interaction with the digital world through a proprietary graphic engine and collaborative development features.

**Highlights:** Convert 3D objects to AR, Interactive AR experiences, Enterprise AR integration, Collaborative AR development, Proprietary graphic engine

**In-app purchases:** none


## Frequently asked questions

### Is Spark Mail free?

Spark Mail is free to download, with in-app purchases available.

### Is DeepSight free?

DeepSight is free to download, with no in-app purchases.

### Which has better reviews, Spark Mail or DeepSight?

DeepSight is rated higher. Spark Mail averages 4.6 out of 5 from 83K ratings, while DeepSight averages 5.0 from 1 ratings.

### Do Spark Mail or DeepSight have ads?

Neither Spark Mail nor DeepSight shows ads.

### Which is updated more often, Spark Mail or DeepSight?

Spark Mail ships an update weekly, and DeepSight every 3 weeks. Most recently, Spark Mail was updated on October 22, 2026 and DeepSight on October 6, 2026.

---

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