# Abo Calculator vs DTMF Dialer Tool

The clearest difference is in-app purchases: Abo Calculator at none against DTMF Dialer Tool's 1. Abo Calculator also leads on ads (none vs shown). DTMF Dialer Tool's advantage is update cadence (every 10 days vs every 26 months) and iOS requirement (15.6 vs 17.2). On price and device support there is nothing between them.

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

Abo Calculator ships an update every 26 months, DTMF Dialer Tool every 10 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Abo Calculator | DTMF Dialer Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (13 ratings)](https://appshunter.io/ios/app/dtmf-dialer-tool/id6748663059/reviews)** |
| Number of ratings | — | **13** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 10 days** |
| Monetization | — | Ad-supported |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.2 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Palma](https://appshunter.io/developer/1717035273) | [Kevin Tang](https://appshunter.io/developer/1780758221) |

## What reviewers say

### Abo Calculator

[App page](https://appshunter.io/ios/app/abo-calculator/id6478010582)

**Features:** macOS Compatibility

**In-app purchases:** none


### DTMF Dialer Tool

[App page](https://appshunter.io/ios/app/dtmf-dialer-tool/id6748663059)

Generate and manage DTMF tones for dialing and testing phone numbers. Features include a modern keypad, karaoke-style playback, and favorites management for quick access to frequently used numbers. Ideal for telephony professionals and radio operators.

**Highlights:** Modern DTMF keypad, Karaoke-style playback, Favorites management, Pause support, Reliable tone generation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DTMF Dialer Pro | $4.99 | one-time |


## Frequently asked questions

### Is Abo Calculator free?

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

### Is DTMF Dialer Tool free?

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

### Do Abo Calculator or DTMF Dialer Tool have ads?

DTMF Dialer Tool shows ads; Abo Calculator does not.

### Which is updated more often, Abo Calculator or DTMF Dialer Tool?

Abo Calculator ships an update every 26 months, and DTMF Dialer Tool every 10 days. Most recently, Abo Calculator was updated on October 8, 2026 and DTMF Dialer Tool on October 16, 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.*