# Blue Box vs rDialer Calling Card  Dialer

The clearest difference is price: rDialer Calling Card  Dialer at Free against Blue Box's $4.99. rDialer Calling Card  Dialer also leads on iOS requirement (6.0 vs 15.0). Blue Box's advantage is rating (4.5 vs 2.5) and review sentiment (56% vs 20%). On ratings volume, ads and device support there is nothing between them.

rDialer Calling Card  Dialer is free to download; Blue Box costs $4.99 up front. rDialer Calling Card  Dialer sells 1 one-off in-app purchase. Blue Box asks for nothing beyond the download.

Blue Box holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 56% of Blue Box's written reviews are positive against 20% of rDialer Calling Card  Dialer's.

Blue Box ships an update every 7 months, rDialer Calling Card  Dialer every 15 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Blue Box | rDialer Calling Card  Dialer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/blue-box/id391832739/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/rdialer-calling-card-dialer/id561026057/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | **55.6% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 15 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 3 MB |
| Requires iOS | 15.0 | **6.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Valley Systems](https://appshunter.io/developer/327149814) | [Rapidsoft Systems](https://appshunter.io/developer/469362792) |

## What reviewers say

### Blue Box

[App page](https://appshunter.io/ios/app/blue-box/id391832739)

Encode and decode DTMF signals using your device's microphone or keypad. Play back tone sequences with adjustable settings, and save them for easy recall. Explore various tone systems, including trunk control and coin signals, for educational and utility purposes.

**Highlights:** Encode/decode DTMF signals, Adjustable tone, delay, and volume, US, UK, and European tone systems, Multi-frequency and trunk control tones, Coin tone sequences (Red Box mode), Custom tone creation, Save and organize sequences

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

**In-app purchases:** none


### rDialer Calling Card  Dialer

[App page](https://appshunter.io/ios/app/rdialer-calling-card-dialer/id561026057)

Automate your calling card or prepaid calls with this dialer. Predefine access numbers and PINs to save time dialing international numbers. Supports multiple calling cards and syncs with your contacts.

**Highlights:** Automated calling card dialing, Predefined access numbers and PINs, Syncs with phone contacts, Multi-card support, Pin and Pin-Less dialing modes, Works over cellular network

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| rDialer Calling Card Dialer | $3.99 | one-time |


## Frequently asked questions

### Is Blue Box free?

Blue Box costs $4.99, with no in-app purchases.

### Is rDialer Calling Card  Dialer free?

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

### Which has better reviews, Blue Box or rDialer Calling Card  Dialer?

Blue Box is rated higher. Blue Box averages 4.5 out of 5 from 4 ratings, while rDialer Calling Card  Dialer averages 2.5 from 2 ratings.

### Do Blue Box or rDialer Calling Card  Dialer have ads?

Neither Blue Box nor rDialer Calling Card  Dialer shows ads.

### Which is updated more often, Blue Box or rDialer Calling Card  Dialer?

Blue Box ships an update every 7 months, and rDialer Calling Card  Dialer every 15 months. Most recently, Blue Box was updated on November 6, 2026 and rDialer Calling Card  Dialer on November 1, 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.*