# Keyyo Phone vs Mailinblack

The clearest difference is update cadence: Mailinblack at every 3 weeks against Keyyo Phone's every 8 months. Keyyo Phone's advantage is iOS requirement (15.0 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.

Keyyo Phone ships an update every 8 months, Mailinblack every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Keyyo Phone | Mailinblack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (19 ratings)](https://appshunter.io/ios/app/keyyo-phone/id582262115/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 67.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 128 MB | 102 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Keyyo](https://appshunter.io/developer/582262118) | [Mailinblack](https://appshunter.io/developer/1465120919) |

## What reviewers say

### Keyyo Phone

[App page](https://appshunter.io/ios/app/keyyo-phone/id582262115)

This professional phone app allows you to use your business line from anywhere. Make and receive calls with your fixed professional number, access advanced features like call transfer and voicemail, and manage your call settings on your smartphone.

**Highlights:** Use professional fixed line anywhere, Receive calls on smartphone globally, Make/receive calls with fixed number, Configure call forwarding, Call recording option, Advanced call features (transfer, conference, voicemail)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


### Mailinblack

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

**In-app purchases:** none


## Frequently asked questions

### Is Keyyo Phone free?

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

### Is Mailinblack free?

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

### Do Keyyo Phone or Mailinblack have ads?

Neither Keyyo Phone nor Mailinblack shows ads.

### Which is updated more often, Keyyo Phone or Mailinblack?

Keyyo Phone ships an update every 8 months, and Mailinblack every 3 weeks. Most recently, Keyyo Phone was updated on October 23, 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.*