# Call by Color 36 vs Unread.

The clearest difference is iOS requirement: Unread. at 15.6 against Call by Color 36's 18.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Call by Color 36 costs $0.99 and Unread. $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Call by Color 36 ships an update every 4 months, Unread. every 5 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Call by Color 36 | Unread. |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unread/id6748683167/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.5 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Vogel](https://appshunter.io/developer/889323201) | [均伟 朱](https://appshunter.io/developer/1805502239) |

## What reviewers say

### Call by Color 36

[App page](https://appshunter.io/ios/app/call-by-color-36/id1494633758)

Quickly call your most important contacts with a single tap. Store up to 36 phone numbers on customizable tiles, organized across three screens. Personalize the look with colors and adjust font sizes for better readability.

**Highlights:** Up to 36 phone numbers, 12 tiles on three screens, Customizable font size, Screen color customization, Dark mode support, Tap to call functionality, No ads

**Features:** Vision Pro support

**In-app purchases:** none


### Unread.

[App page](https://appshunter.io/ios/app/unread/id6748683167)

This app provides a private space to write messages and record voice notes to people you can no longer communicate with. It's designed for emotional processing, closure, and remembrance, offering a sanctuary for unspoken words without any expectation of replies or delivery.

**Highlights:** Private message writing, Voice memo recording, No read receipts or replies, Device-only data storage, Immersive chat themes, Emotional conversation deletion options

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

**In-app purchases:** none


## Frequently asked questions

### Is Call by Color 36 free?

Call by Color 36 costs $0.99, with no in-app purchases.

### Is Unread. free?

Unread. costs $0.99, with no in-app purchases.

### Do Call by Color 36 or Unread. have ads?

Neither Call by Color 36 nor Unread. shows ads.

### Which is updated more often, Call by Color 36 or Unread.?

Call by Color 36 ships an update every 4 months, and Unread. every 5 months. Most recently, Call by Color 36 was updated on November 3, 2026 and Unread. on October 30, 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.*