# Cipher Sender vs ZP 6.4 AMP

The clearest difference is iOS requirement: ZP 6.4 AMP at 9.0 against Cipher Sender's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 9 months. The most recent releases landed on September 21, 2026 and December 23, 2025 respectively.

## The numbers

| Metric | Cipher Sender | ZP 6.4 AMP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (39 ratings)](https://appshunter.io/ios/app/cipher-sender/id548958077/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 94.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | Every 9 months |
| Monetization | Free | — |
| Size | 1 MB | 2 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Julian Tigler](https://appshunter.io/developer/1763289322) | [Maslim Djanuanto](https://appshunter.io/developer/1521794441) |

## What reviewers say

### Cipher Sender

[App page](https://appshunter.io/ios/app/cipher-sender/id548958077)

This app allows you to send secret messages to your friends using a variety of historical ciphers and codes. It supports popular encryption methods like Caesar Shift, Morse Code, and Vigenere Cipher. The application is open source, inviting community contributions.

**Highlights:** A1Z26 Cipher, Atbash Cipher, Caesar Shift Cipher, Morse Code, Vigenere Cipher, Open Source

**Features:** macOS Compatibility

**In-app purchases:** none


### ZP 6.4 AMP

[App page](https://appshunter.io/ios/app/zp-64-amp/id1565294157)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cipher Sender free?

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

### Is ZP 6.4 AMP free?

ZP 6.4 AMP is free to download, with no in-app purchases.

### Do Cipher Sender or ZP 6.4 AMP have ads?

Neither Cipher Sender nor ZP 6.4 AMP shows ads.

### Which is updated more often, Cipher Sender or ZP 6.4 AMP?

Cipher Sender ships an update every 9 months, and ZP 6.4 AMP every 9 months. Most recently, Cipher Sender was updated on September 21, 2026 and ZP 6.4 AMP on December 23, 2025.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*