# blackbx vs CalixNote

The clearest difference is ads: CalixNote at none against blackbx's shown. CalixNote also leads on update cadence (every 8 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

blackbx ships an update every 3 months, CalixNote every 8 days. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | blackbx | CalixNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 8 days** |
| Size | 32 MB | 4 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Caligula Capital UG (haftungsbeschraenkt)](https://appshunter.io/developer/1805161107) | [Hoang Phuoc](https://appshunter.io/developer/1188782391) |

## What reviewers say

### blackbx

[App page](https://appshunter.io/ios/app/blackbx/id6743937851)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalixNote

[App page](https://appshunter.io/ios/app/calixnote/id6785270695)

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

**In-app purchases:** none


## Frequently asked questions

### Is blackbx free?

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

### Is CalixNote free?

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

### Do blackbx or CalixNote have ads?

blackbx shows ads; CalixNote does not.

### Which is updated more often, blackbx or CalixNote?

blackbx ships an update every 3 months, and CalixNote every 8 days. Most recently, blackbx was updated on September 29, 2026 and CalixNote on October 1, 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.*