# Dialer vs ST

The clearest difference is rating: ST at 5.0 against Dialer's 4.2. ST also leads on in-app purchases (none vs 1) and device support (3 vs 1). Dialer's advantage is update cadence (every 5 months vs every 27 months) and ratings volume (37 vs 4). On price, review sentiment and ads there is nothing between them.

Both are free to download. Dialer sells 1 one-off in-app purchase. ST asks for nothing beyond the download.

ST holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Dialer has 37 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 57% of Dialer's written reviews are positive against 50% of ST's, so the app with the better star average is not the one people write more warmly about.

Dialer ships an update every 5 months, ST every 27 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Dialer | ST |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (37 ratings)](https://appshunter.io/ios/app/dialer/id482793462/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/st-4001i/id1492225169/reviews)** |
| Number of ratings | **37** | 4 |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 27 months |
| Monetization | Freemium | **Free** |
| Size | 2 MB | 12 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Emmanuel Tsouris](https://appshunter.io/developer/370905529) | [ICOM INCORPORATED](https://appshunter.io/developer/1193842631) |

## What reviewers say

### Dialer

[App page](https://appshunter.io/ios/app/dialer/id482793462)

This app generates DTMF tones for interacting with landline phone systems and other devices that use these tones. It allows users to play tones directly from their device's speaker and offers features like saving favorite sequences.

**Highlights:** Generate DTMF tones, Use with POTS and landline phones, Save favorite tone sequences, Adjustable volume, Unlock expanded DTMF tones (Pro), Unlimited favorites (Pro), Customize tone and pause length (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $4.99 | one-time |


### ST

[App page](https://appshunter.io/ios/app/st-4001i/id1492225169)

This app converts photos and images into a format compatible with D-STAR transceivers for the Share Picture function. Users can crop images, add text like call signs, and transfer them wirelessly or via Bluetooth to supported transceivers.

**Highlights:** Image conversion for D-STAR Share Picture, Image cropping, Add text (call signs), Wireless transfer to transceiver, Bluetooth transfer to transceiver, Save cropped image as file

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dialer free?

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

### Is ST free?

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

### Which has better reviews, Dialer or ST?

ST is rated higher. Dialer averages 4.2 out of 5 from 37 ratings, while ST averages 5.0 from 4 ratings.

### Do Dialer or ST have ads?

Neither Dialer nor ST shows ads.

### Which is updated more often, Dialer or ST?

Dialer ships an update every 5 months, and ST every 27 months. Most recently, Dialer was updated on October 23, 2026 and ST on October 24, 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.*