Math keyboard vs Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math keyboard
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.
- Built-in calculator keyboard
- Calculator memory function
- No app switching required
- Supports basic and advanced operations
- Minimalist design for productivity
Read full descriptionHide full description
A Custom Keyboard with a Built-In Calculator — Do the Math Without Switching Apps This smart calculator app is built into your keyboard, so you can perform quick calculations while typing in any app. Whether you're chatting, taking notes, or entering data, this math helper is always ready. Designed as a lightweight, efficient custom keyboard, it functions as a full math keyboard, now with calculator memory to store and reuse values easily. Key Features: - Built-in calculator available directly from the keyboard - Calculator memory for saving and recalling results - No app switching — works in Messages, WhatsApp, Telegram, and more - Supports basic and advanced operations - Clean, minimal design focused on productivity - Perfect for quick math, planning expenses, or typing smarter. Download now and keep your numbers at your fingertips.
Meter
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.
- Complete sensor suite
- Real-time measurements
- High accuracy and precision
- Modern card-based interface
- Dark mode support
- Privacy-focused local data processing
Read full descriptionHide full description
Transform your iPhone into a powerful sensor measurement toolkit with Meter! Access all your device's sensors in one beautifully designed app. **COMPLETE SENSOR SUITE** • **Altimeter** - Real-time altitude and barometric pressure • **Speedometer** - GPS-based speed tracking with multiple units • **Barometer** - Atmospheric pressure monitoring • **Accelerometer** - 3-axis motion detection and gravity measurements • **Magnetometer** - Magnetic field strength and compass functionality • **GPS** - Precise location coordinates and accuracy indicators • **Sound Level Meter** - Decibel measurements (0-120 dB) with advanced classification • **Level Tool** - Precise leveling with roll/pitch measurements **KEY FEATURES** • Modern, intuitive card-based interface • Dark mode support • High accuracy and precision • No advertisements or subscriptions • Privacy-focused with local data processing • Real-time measurements with comprehensive error handling Perfect for engineers, scientists, outdoor enthusiasts, students, and anyone curious about their device's capabilities.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Math keyboard | Meter |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 5 — better |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Nikolai Rodionov | Jiajun Zhang |
Customer experience
Math keyboard
Meter
In-app purchases
Math keyboard
No in-app purchases
Meter
No in-app purchases








