# Math keyboard vs Meter

The clearest difference is price: Meter at Free against Math keyboard's $0.99. Meter also leads on update cadence (every 3 days vs monthly). Math keyboard's advantage is iOS requirement (16.0 vs 18.2). On rating, review sentiment, ratings volume and ads there is nothing between them.

Meter is free to download; Math keyboard costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Math keyboard against 5.0 for Meter. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Math keyboard ships an update monthly, Meter every 3 days. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Math keyboard | Meter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/math-keyboard-calcuboard/id6744564198/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/meter-sensor-dashboard/id6747471828/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 2 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nikolai Rodionov](https://appshunter.io/developer/1123457016) | [Jiajun Zhang](https://appshunter.io/developer/1819165423) |

## What reviewers say

### Math keyboard

[App page](https://appshunter.io/ios/app/math-keyboard-calcuboard/id6744564198)

Perform calculations directly from your keyboard without switching apps. This smart helper allows quick math while chatting, taking notes, or entering data. It features calculator memory to save and reuse values, enhancing productivity.

**Highlights:** Built-in calculator keyboard, Calculator memory function, No app switching required, Supports basic and advanced operations, Minimalist design for productivity

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

**In-app purchases:** none


### Meter

[App page](https://appshunter.io/ios/app/meter-sensor-dashboard/id6747471828)

This utility app turns your iPhone into a comprehensive measurement toolkit. It provides access to various device sensors for real-time data on altitude, speed, pressure, motion, magnetic fields, location, sound levels, and leveling. Enjoy a clean interface with no ads or subscriptions.

**Highlights:** Complete sensor suite, Real-time measurements, High accuracy and precision, Modern card-based interface, Dark mode support, Privacy-focused local data processing

**In-app purchases:** none


## Frequently asked questions

### Is Math keyboard free?

Math keyboard costs $0.99, with no in-app purchases.

### Is Meter free?

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

### Which has better reviews, Math keyboard or Meter?

Math keyboard and Meter are both rated 5.0 out of 5 on the App Store, from 4 and 5 ratings respectively.

### Do Math keyboard or Meter have ads?

Neither Math keyboard nor Meter shows ads.

### Which is updated more often, Math keyboard or Meter?

Math keyboard ships an update monthly, and Meter every 3 days. Most recently, Math keyboard was updated on October 3, 2026 and Meter on October 7, 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.*