# Private Voice Inbox vs Singularity Codex

The clearest difference is iOS requirement: Private Voice Inbox at 17.0 against Singularity Codex's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Private Voice Inbox sells 3 in-app purchases, starting at $5.99 per month and Singularity Codex sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Private Voice Inbox | Singularity Codex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 62 MB | 5 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Karel Chwistek](https://appshunter.io/developer/6772084279) | [BURAK KADAN](https://appshunter.io/developer/6811318808) |

## What reviewers say

### Private Voice Inbox

[App page](https://appshunter.io/ios/app/private-voice-inbox/id6772084277)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Voice Inbox Premium Monthly Sub | $5.99 | per month |
| Voice Inbox Premium Yearly Sub | $49.99 | per year |
| Private Voice Inbox Prem Lifetime | $79.99 | one-time |


### Singularity Codex

[App page](https://appshunter.io/ios/app/singularity-codex-self-notes/id6811318806)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Codex, for good | $12.99 | one-time |


## Frequently asked questions

### Is Private Voice Inbox free?

Private Voice Inbox is free to download, with in-app purchases available.

### Is Singularity Codex free?

Singularity Codex is free to download, with in-app purchases available.

### Do Private Voice Inbox or Singularity Codex have ads?

Neither Private Voice Inbox nor Singularity Codex shows ads.

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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.*