Comparison

Math keyboard vs Meter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Built-in calculator keyboard
  • Calculator memory function
  • No app switching required
  • Supports basic and advanced operations
  • Minimalist design for productivity
Features
Read 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.

About

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.

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

Math keyboard4 screens
Meter4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
Math keyboard versus Meter: the parameters behind the verdict, then further details
ParameterMath keyboardMeter
Price$0.99Free — better
Rating5.0 (4 ratings)5.0 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings45 — better
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.2
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperNikolai RodionovJiajun Zhang

Customer experience

Math keyboard

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Meter

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Math keyboard

No in-app purchases

None

Meter

No in-app purchases

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.

Other comparisons