# DTMF Dial vs Blynk IoT

The clearest difference is rating: Blynk IoT at 4.5 against DTMF Dial's 1.0. Blynk IoT also leads on update cadence (monthly vs every 27 months) and ratings volume (830 vs 5). DTMF Dial's advantage is in-app purchases (none vs 7) and device support (3 vs 1). On price, review sentiment and ads there is nothing between them.

Both are free to download. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. DTMF Dial asks for nothing beyond the download.

Blynk IoT holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Blynk IoT has 830 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 36% of DTMF Dial's written reviews are positive against 42% of Blynk IoT's.

DTMF Dial ships an update every 27 months, Blynk IoT monthly. The most recent releases landed on November 1, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | DTMF Dial | Blynk IoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (5 ratings)](https://appshunter.io/ios/app/dtmf-dial/id439867878/reviews) | **[4.5 (830 ratings)](https://appshunter.io/ios/app/blynk-iot/id1559317868/reviews)** |
| Number of ratings | 5 | **830** |
| Positive reviews | 36.4% of reviews | **42.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 86 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [iPhonso GmbH](https://appshunter.io/developer/364900630) | [Blynk Technologies](https://appshunter.io/developer/808760484) |

## What reviewers say

### DTMF Dial

[App page](https://appshunter.io/ios/app/dtmf-dial/id439867878)

This utility allows you to dial phone numbers from your iPhone contacts on landline or pay phones. Simply select a contact, hold your device near the mouthpiece, and initiate the call.

**Highlights:** Dial iPhone contacts on landlines, Edit numbers before dialing, Adjust dialing speed, Works with pay-phones, Uses device's speaker for dialing

**Features:** macOS Compatibility

**In-app purchases:** none


### Blynk IoT

[App page](https://appshunter.io/ios/app/blynk-iot/id1559317868)

Build custom IoT apps without coding using a drag-and-drop interface. Manage devices, visualize data, and send real-time alerts. Supports over 400 hardware boards and offers secure, scalable cloud infrastructure.

**Highlights:** Drag-and-drop IoT app builder, Device management and control, Sensor data visualization, OTA firmware updates, Real-time alerts and notifications, Support for 400+ hardware boards, Secure cloud infrastructure

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blynk MAKER - Monthly | $6.99 | per month |
| Blynk Starter - Monthly | $29.00 | per month |
| Blynk PRO (40 users) Monthly | $48.99 | per month |
| Blynk MAKER - Yearly | $59.99 | per year |
| Blynk PRO (100 users) Monthly | $98.99 | per month |
| Blynk PRO (50 users) Monthly | $99.00 | per month |
| Blynk PRO (500 users) Monthly | $299.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful IoT platform
- 🚀 Efficient for rapid prototyping
- 👍 Great for hobbyists and businesses
- 👍 Stable and reliable

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Unstable, crashes frequently
- 🤔 Confusing for beginners
- 🤔 Lacks flexibility compared to legacy version
- 🤔 Limited free features

**Reported bugs**

- Connectivity issues with devices
- Widgets not working as expected
- Account deletion without warning
- Incompatibility with older hardware

**Requested features**

- Dark mode option
- Bluetooth support
- Better documentation and tutorials
- Restore legacy app functionality
- Affordable pricing for hobbyists


## Frequently asked questions

### Is DTMF Dial free?

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

### Is Blynk IoT free?

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

### Which has better reviews, DTMF Dial or Blynk IoT?

Blynk IoT is rated higher. DTMF Dial averages 1.0 out of 5 from 5 ratings, while Blynk IoT averages 4.5 from 830 ratings.

### Do DTMF Dial or Blynk IoT have ads?

Neither DTMF Dial nor Blynk IoT shows ads.

### Which is updated more often, DTMF Dial or Blynk IoT?

DTMF Dial ships an update every 27 months, and Blynk IoT monthly. Most recently, DTMF Dial was updated on November 1, 2026 and Blynk IoT on November 13, 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.*