# CHRONOS vs Mailinblack

The clearest difference is update cadence: Mailinblack at every 3 weeks against CHRONOS's every 2 months. CHRONOS's advantage is iOS requirement (11.0 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.

CHRONOS ships an update every 2 months, Mailinblack every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CHRONOS | Mailinblack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 19 MB | 102 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [CASTELIS](https://appshunter.io/developer/1584600378) | [Mailinblack](https://appshunter.io/developer/1465120919) |

## What reviewers say

### CHRONOS

[App page](https://appshunter.io/ios/app/chronos-ga/id1584600376)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mailinblack

[App page](https://appshunter.io/ios/app/mailinblack/id6464315792)

**In-app purchases:** none


## Frequently asked questions

### Is CHRONOS free?

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

### Is Mailinblack free?

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

### Do CHRONOS or Mailinblack have ads?

Neither CHRONOS nor Mailinblack shows ads.

### Which is updated more often, CHRONOS or Mailinblack?

CHRONOS ships an update every 2 months, and Mailinblack every 3 weeks. Most recently, CHRONOS was updated on October 27, 2026 and Mailinblack on October 25, 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.*