# All in One Calculator vs Unread.

The clearest difference is ads: Unread. at none against All in One Calculator's shown. Unread. also leads on price ($0.99 vs $1.99). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

All in One Calculator costs $1.99 and Unread. $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

All in One Calculator ships an update every 3 months, Unread. every 5 months. The most recent releases landed on September 14, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | All in One Calculator | Unread. |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unread/id6748683167/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | — | Paid |
| Size | 139 MB | 3 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juan Antonio Veloz Gutierrez](https://appshunter.io/developer/1810351183) | [均伟 朱](https://appshunter.io/developer/1805502239) |

## What reviewers say

### All in One Calculator

[App page](https://appshunter.io/ios/app/all-in-one-calculator-math/id6745767970)

**Features:** macOS Compatibility

**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 All in One Calculator free?

All in One Calculator costs $1.99, with no in-app purchases.

### Is Unread. free?

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

### Do All in One Calculator or Unread. have ads?

All in One Calculator shows ads; Unread. does not.

### Which is updated more often, All in One Calculator or Unread.?

All in One Calculator ships an update every 3 months, and Unread. every 5 months. Most recently, All in One Calculator was updated on September 14, 2026 and Unread. on August 24, 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.*