# Revive Email vs Kairova

The clearest difference is in-app purchases: Revive Email at none against Kairova's 4. Revive Email also leads on device support (3 vs 1). Kairova's advantage is update cadence (every 3 weeks vs every 8 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Kairova sells 4 in-app purchases, starting at $4.99 per month. Revive Email asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Revive Email against 5.0 for Kairova. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Revive Email ships an update every 8 months, Kairova every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Revive Email | Kairova |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/revive-email/id6736889046/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/kairova-ai-planner/id6758907393/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 20 MB | 67 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [The DCTree](https://appshunter.io/developer/1506405593) | [Eduardo Castillo](https://appshunter.io/developer/1875672437) |

## What reviewers say

### Revive Email

[App page](https://appshunter.io/ios/app/revive-email/id6736889046)

This app provides fast, reliable access to your business inbox using your custom domain. It offers a clean interface, built-in calendar and contact tools, and robust spam protection for a private and productive experience across devices.

**Highlights:** Custom domain email support, Clean user interface, Built-in calendar, Contact management, Spam and phishing protection, Ad-free and private

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Kairova

[App page](https://appshunter.io/ios/app/kairova-ai-planner/id6758907393)

This app helps you manage tasks, build personalized schedules, and focus on your work. It offers features for project management, goal setting, and progress tracking, with optional AI planning capabilities.

**Highlights:** Task management with history, Personalized scheduling, Focus sessions with app controls, Project workspace with notes, Calendar integration, Widgets and shortcuts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kairova Pro | $4.99 | per month |
| Kairova Ultra | $9.99 | per month |
| Kairova Pro Annual | $49.99 | per year |
| Kairova Ultra Annual | $99.99 | per year |


## Frequently asked questions

### Is Revive Email free?

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

### Is Kairova free?

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

### Which has better reviews, Revive Email or Kairova?

Revive Email and Kairova are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Revive Email or Kairova have ads?

Neither Revive Email nor Kairova shows ads.

### Which is updated more often, Revive Email or Kairova?

Revive Email ships an update every 8 months, and Kairova every 3 weeks. Most recently, Revive Email was updated on November 8, 2026 and Kairova on November 5, 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.*