# Smart Plug vs Calculator 17

The clearest difference is update cadence: Calculator 17 at every 4 days against Smart Plug's every 3 weeks. Calculator 17 also leads on review sentiment (22% vs 0%). Smart Plug's advantage is iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart Plug ships an update every 3 weeks, Calculator 17 every 4 days. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Smart Plug | Calculator 17 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (971 ratings)](https://appshunter.io/ios/app/calculator-17-math-solver/id6452015902/reviews)** |
| Number of ratings | — | **971** |
| Positive reviews | 0.0% of reviews | **21.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | Free |
| Size | 64 MB | 5 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALSTEK ELEKTRONIK YAZILIM BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1041808909) | [AI APPS SRL](https://appshunter.io/developer/1697892814) |

## What reviewers say

### Smart Plug

[App page](https://appshunter.io/ios/app/smart-plug/id1550793541)

This application allows for remote monitoring and control of smart plug systems. It offers real-time tracking of devices and alarms, advanced reporting, and energy management capabilities through both mobile and web interfaces. Enhanced security features and customizable functions are also provided.

**Highlights:** Remote monitoring and control, Real-time device and alarm tracking, Advanced reporting, Energy management, Web and mobile access, User-based authorization, Customizable functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator 17

[App page](https://appshunter.io/ios/app/calculator-17-math-solver/id6452015902)

This app offers a user-friendly calculator with basic and scientific modes. Access calculations instantly via a home screen widget and review past computations in a saved history.

**Highlights:** User-friendly interface, Basic and scientific modes, Home screen widget, LiveActivity Standby for iPhone, Calculation history, Customizable themes

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

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient and easy to use
- 💡 Excellent free app

**What reviewers complain about**

- 🐛 Keyboard not functioning properly
- 🐛 Widget not working or slow
- 🐛 Screen sizing issues
- 🐛 Only works in portrait mode on iPad

**Reported bugs**

- Widget shows up blank
- Numerical display is cut off
- Significant delay between key presses and display update

**Requested features**

- Add landscape mode support
- Improve widget responsiveness
- Increase bracket functionality


## Frequently asked questions

### Is Smart Plug free?

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

### Is Calculator 17 free?

Calculator 17 is free to download, with no in-app purchases.

### Do Smart Plug or Calculator 17 have ads?

Neither Smart Plug nor Calculator 17 shows ads.

### Which is updated more often, Smart Plug or Calculator 17?

Smart Plug ships an update every 3 weeks, and Calculator 17 every 4 days. Most recently, Smart Plug was updated on September 30, 2026 and Calculator 17 on October 12, 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.*