# Spacemail vs Kalendoo

The clearest difference is update cadence: Spacemail at every 5 days against Kalendoo's every 3 months. Kalendoo's advantage is iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spacemail ships an update every 5 days, Kalendoo every 3 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spacemail | Kalendoo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (316 ratings)](https://appshunter.io/ios/app/spacemail/id6754387443/reviews)** | — |
| Number of ratings | **316** | — |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free | — |
| Size | 156 MB | 36 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Namecheap, Inc](https://appshunter.io/developer/482604035) | [Jules DELESSE](https://appshunter.io/developer/1811144878) |

## What reviewers say

### Spacemail

[App page](https://appshunter.io/ios/app/spacemail/id6754387443)

Manage your business email efficiently with this app. It offers a fast, intuitive interface with instant syncing across devices. Enjoy smart security features like 2FA and data encryption in an ad-free environment.

**Highlights:** Seamless business email management, Smart security with 2FA and encryption, Intuitive design and instant sync, Intelligent dark mode, Ad-free inbox

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

**In-app purchases:** none


### Kalendoo

[App page](https://appshunter.io/ios/app/kalendoo/id6780181027)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spacemail free?

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

### Is Kalendoo free?

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

### Do Spacemail or Kalendoo have ads?

Neither Spacemail nor Kalendoo shows ads.

### Which is updated more often, Spacemail or Kalendoo?

Spacemail ships an update every 5 days, and Kalendoo every 3 months. Most recently, Spacemail was updated on October 18, 2026 and Kalendoo on October 8, 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.*