# M4Bindr vs Private Note Encrypted

M4Bindr and Private Note Encrypted are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. M4Bindr sells 5 one-off in-app purchases and Private Note Encrypted sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

M4Bindr ships an update every 6 days, Private Note Encrypted every 11 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | M4Bindr | Private Note Encrypted |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/m4bindr-audiobook-maker/id6758958005/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 11 days |
| Monetization | Free | — |
| Size | 70 MB | 52 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SAMUEL NNAEMEKA ON YE JI](https://appshunter.io/developer/1875980282) | [ZONESOFT S.R.L.](https://appshunter.io/developer/6780032610) |

## What reviewers say

### M4Bindr

[App page](https://appshunter.io/ios/app/m4bindr-audiobook-maker/id6758958005)

Easily convert, merge, and organize audio files into the M4B format. Create a private audiobook library compatible with Apple Books and other players. Supports batch import, chapter management, and metadata editing.

**Highlights:** Convert MP3 to M4B, Merge audio files, Batch import audio, Manage chapters, Edit metadata, Export for Apple Books

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paper Back | $2.99 | one-time |
| Standard Plan | $5.99 | one-time |
| Full access | $5.99 | one-time |
| Hard Cover | $6.99 | one-time |
| First Edition | $14.99 | one-time |


### Private Note Encrypted

[App page](https://appshunter.io/ios/app/private-note-encrypted/id6780053523)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $3.99 | per month |


## Frequently asked questions

### Is M4Bindr free?

M4Bindr is free to download, with in-app purchases available.

### Is Private Note Encrypted free?

Private Note Encrypted is free to download, with in-app purchases available.

### Do M4Bindr or Private Note Encrypted have ads?

Neither M4Bindr nor Private Note Encrypted shows ads.

### Which is updated more often, M4Bindr or Private Note Encrypted?

M4Bindr ships an update every 6 days, and Private Note Encrypted every 11 days. Most recently, M4Bindr was updated on October 9, 2026 and Private Note Encrypted 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.*