# Rattlegram vs HamSphere 5.0

The clearest difference is review sentiment: Rattlegram at 90% against HamSphere 5.0's 38%. Rattlegram also leads on rating (4.5 vs 3.9) and in-app purchases (none vs 30). HamSphere 5.0's advantage is update cadence (monthly vs every 9 months) and iOS requirement (15.6 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. HamSphere 5.0 sells 30 one-off in-app purchases. Rattlegram asks for nothing beyond the download.

Rattlegram holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 23 and 7 respectively. Written reviews point the same way: 90% of Rattlegram's written reviews are positive against 38% of HamSphere 5.0's.

Rattlegram ships an update every 9 months, HamSphere 5.0 monthly. The most recent releases landed on September 8, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Rattlegram | HamSphere 5.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (23 ratings)](https://appshunter.io/ios/app/rattlegram/id1664526096/reviews)** | [3.9 (7 ratings)](https://appshunter.io/ios/app/hamsphere-50/id6447489061/reviews) |
| Number of ratings | **23** | 7 |
| Positive reviews | **90.0% of reviews** | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 4 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [aicodix GmbH](https://appshunter.io/developer/1664526098) | [HamSphere AB](https://appshunter.io/developer/1496331754) |

## 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


### HamSphere 5.0

[App page](https://appshunter.io/ios/app/hamsphere-50/id6447489061)

This virtual ham radio transceiver simulates HF bands from 10-160m, including 6m, 2m, and 70cm. It features USB, LSB, and CW modes, power settings, and built-in audio filters. Additional instruments can be unlocked via in-app purchases.

**Highlights:** Virtual HF bands (10-160m), 6m, 2m, and 70cm bands, USB, LSB, and CW modes, Built-in audio filters, Power setting, In-app purchase instrument expansions

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

**In-app purchases (30)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3el T-yagi E (30m) | $4.99 | one-time |
| 3el T-yagi E (40m) | $4.99 | one-time |
| 3el T-yagi W (20m) | $4.99 | one-time |
| 3el T-yagi E (20m) | $4.99 | one-time |
| G5RV North-South (10-160m) | $4.99 | one-time |
| J-Pole (12m) | $6.99 | one-time |
| J-Pole (17m) | $6.99 | one-time |
| Plugizer MBP009 | $6.99 | one-time |
| Lookup Box MBP011 | $6.99 | one-time |
| J-Pole (11m) | $6.99 | one-time |
| J-Pole (20m) | $6.99 | one-time |
| Log Book MBP003 | $6.99 | one-time |
| DX-Monitor MBP008 | $6.99 | one-time |
| Waterfall MBP002 | $6.99 | one-time |
| Antenna Selector MBP004 | $6.99 | one-time |
| Antenna Rotator MBP005 | $6.99 | one-time |
| Oscilloscope MBP006 | $6.99 | one-time |
| DX-Cluster MBP010 | $6.99 | one-time |
| 8-Band Omni Whip (10-40m) | $6.99 | one-time |
| J-Pole (10m) | $6.99 | one-time |
| G5RV East-West (10-160m) | $6.99 | one-time |
| Moxon (20m) | $14.99 | one-time |
| Moxon (12m) | $14.99 | one-time |
| Moxon (17m) | $14.99 | one-time |
| Moxon (10m) | $14.99 | one-time |
| Moxon (11m) | $14.99 | one-time |
| Bruce Array (60m) | $24.99 | one-time |
| Bruce Array (80m) | $24.99 | one-time |
| VU2NSB Dangler (20,17, 12,10m) | $29.99 | one-time |
| HamSphere Subscription | $29.99 | one-time |


## Frequently asked questions

### Is Rattlegram free?

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

### Is HamSphere 5.0 free?

HamSphere 5.0 is free to download, with in-app purchases available.

### Which has better reviews, Rattlegram or HamSphere 5.0?

Rattlegram is rated higher. Rattlegram averages 4.5 out of 5 from 23 ratings, while HamSphere 5.0 averages 3.9 from 7 ratings.

### Do Rattlegram or HamSphere 5.0 have ads?

Neither Rattlegram nor HamSphere 5.0 shows ads.

### Which is updated more often, Rattlegram or HamSphere 5.0?

Rattlegram ships an update every 9 months, and HamSphere 5.0 monthly. Most recently, Rattlegram was updated on September 8, 2026 and HamSphere 5.0 on August 15, 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.*