# PowerOne calculator vs MTT

The clearest difference is review sentiment: MTT at 100% against PowerOne calculator's 50%. MTT also leads on in-app purchases (none vs 2) and rating (5.0 vs 4.6). PowerOne calculator's advantage is ratings volume (805 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PowerOne calculator sells 2 in-app purchases, starting at $2.99 per month. MTT asks for nothing beyond the download.

MTT holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PowerOne calculator has 805 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of PowerOne calculator's written reviews are positive against 100% of MTT's.

## The numbers

| Metric | PowerOne calculator | MTT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (805 ratings)](https://appshunter.io/ios/app/powerone-calculator/id1141498515/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mtt-dmx-controller/id6795246442/reviews)** |
| Number of ratings | **805** | 1 |
| Positive reviews | 50.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 1 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Crafty Weasel, LLC](https://appshunter.io/developer/1602588690) | [Model Train Technology LLC](https://appshunter.io/developer/6774602636) |

## What reviewers say

### PowerOne calculator

[App page](https://appshunter.io/ios/app/powerone-calculator/id1141498515)

This app offers a powerful calculator with hundreds of pre-built templates for finance, engineering, and more. Users can also create custom calculations for specific needs, ensuring accuracy and speed for repetitive tasks. Access your calculations across devices, online or offline.

**Highlights:** Hundreds of pre-built calculation templates, Create custom calculation templates, Standard and RPN calculator modes, Cross-device syncing (iPhone, iPad, Mac, Web), Offline access, Template sharing for teams, Customizable themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $2.99 | per month |
| Annual Premium Subscription | $19.99 | per year |

**What reviewers like**

- 🚀 Powerful and versatile calculator
- 👍 Extensive template library
- 🚀 Customizable keyboard and layout
- 👍 Helpful customer support
- 🚀 Syncing across devices

**What reviewers complain about**

- 🔒 Requires account login
- 👎 Subscription pricing model
- 👎 Cluttered and less user-friendly interface
- 👎 Removed features from previous versions
- 🐛 Bugs and glitches

**Reported bugs**

- Calculator not accessible after update
- Templates disappearing after update
- Incompatibility with iOS 16
- Calculation errors in certain templates

**Requested features**

- Landscape mode support
- Ability to reorganize templates
- Restore previous version's interface
- Retain access to purchased features


### MTT

[App page](https://appshunter.io/ios/app/mtt-dmx-controller/id6795246442)

This application configures DMX hardware connected to an Arduino R4 via Bluetooth Low Energy. It allows users to set custom threshold levels for 16 GPIO pins on the Arduino, controlling DMX panels.

**Highlights:** BLE connectivity to Arduino R4, DMX SHIELD communication, GPIO pin control, Custom threshold settings, DMX panel configuration

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerOne calculator free?

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

### Is MTT free?

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

### Which has better reviews, PowerOne calculator or MTT?

MTT is rated higher. PowerOne calculator averages 4.6 out of 5 from 805 ratings, while MTT averages 5.0 from 1 ratings.

### Do PowerOne calculator or MTT have ads?

Neither PowerOne calculator nor MTT shows ads.

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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.*