# Rattlegram vs PacketMessage

The clearest difference is rating: PacketMessage at 5.0 against Rattlegram's 4.5. PacketMessage also leads on update cadence (weekly vs every 9 months). Rattlegram's advantage is in-app purchases (none vs 3) and ratings volume (23 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PacketMessage sells 3 one-off in-app purchases. Rattlegram asks for nothing beyond the download.

PacketMessage holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Rattlegram has 23 ratings behind it against 1, so its average is the more settled of the two.

Rattlegram ships an update every 9 months, PacketMessage weekly. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Rattlegram | PacketMessage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (23 ratings)](https://appshunter.io/ios/app/rattlegram/id1664526096/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/packetmessage/id6758742785/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [aicodix GmbH](https://appshunter.io/developer/1664526098) | [Lukasz Skierkowski](https://appshunter.io/developer/1280847319) |

## What reviewers say

### Rattlegram

[App page](https://appshunter.io/ios/app/rattlegram/id1664526096)

This app utilizes advanced COFDM technology for audio-based SMS transmission. It supports various modes with specific encoding and modulation techniques, requiring minimal bandwidth for efficient data transfer.

**Highlights:** COFDM technology, Audio-based SMS, 160 ms OFDM symbols, Differential PSK modulation, Forward error correction, Low bandwidth requirement

**In-app purchases:** none


### PacketMessage

[App page](https://appshunter.io/ios/app/packetmessage/id6758742785)

This app enables licensed amateur radio operators to send reliable messages directly over RF using their radio and a compatible TNC interface. It leverages advanced error correction protocols for robust communication in a decentralized network.

**Highlights:** FX.25 forward error correction, AX.25 bit-flip error correction, Software TNC or KISS TNC interface support, Direct RF message transmission, Decentralized communication

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Rattlegram free?

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

### Is PacketMessage free?

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

### Which has better reviews, Rattlegram or PacketMessage?

PacketMessage is rated higher. Rattlegram averages 4.5 out of 5 from 23 ratings, while PacketMessage averages 5.0 from 1 ratings.

### Do Rattlegram or PacketMessage have ads?

Neither Rattlegram nor PacketMessage shows ads.

### Which is updated more often, Rattlegram or PacketMessage?

Rattlegram ships an update every 9 months, and PacketMessage weekly. Most recently, Rattlegram was updated on September 25, 2026 and PacketMessage on September 29, 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.*