Math keyboard vs Audio Compressor
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
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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.
Audio Compressor
Easily reduce the size of audio files like MP3, M4A, AAC, and WAV without sacrificing quality. This app offers batch processing, preview options, and various compression settings to save space and share audio faster.
- Compress multiple audio files
- Preview before and after compression
- Adjust compression level and bitrate
- Apply fade in/out effects
- Mono/Stereo conversion
- Volume normalization
- Batch processing
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Say goodbye to large audio files and wasted space. Audio Compressor & MP3 Reducer makes it easy to compress MP3, M4A, AAC, and WAV files while preserving audio quality. What's New: - Audio frequency control for perfect compatibility - Mono/Stereo conversion to reduce file size - Volume normalization for consistent sound levels - Smooth fade in/out effects for a professional finish - Smart quality settings and flexible bitrate options - Batch processing with real-time progress tracking Key Features: - Compress multiple audio files at once - Preview before and after compression - Choose compression level and bit rate (128, 256, 384, 512 kbps) - Instantly view size savings before you save - Easy one-tap operation and simple interface - Save compressed audio in seconds How to Use: 1. Select your audio files (MP3, M4A, AAC, WAV) 2. Set your preferred compression and quality settings 3. Apply effects like fade, normalization, or mono/stereo conversion 4. Preview results 5. Save or share your compressed files Perfect for musicians, podcasters, students, and anyone who wants to save device space or share audio quickly. Your feedback is always welcome at sumansharmadeveloper@gmail.com. Update to the latest version of Audio Compressor now and experience smarter, easier audio compression!
Screenshots
Verdict
The clearest difference is review sentiment: Math keyboard at 100% against Audio Compressor's 0%. Math keyboard also leads on rating (5.0 vs 3.0) and ads (none vs shown). Audio Compressor's advantage is price (Free vs $0.99) and update cadence (weekly vs monthly). On ratings volume, in-app purchases, device support and iOS requirement 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
Audio Compressor is free to download; Math keyboard costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Math keyboard holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 100% of Math keyboard's written reviews are positive against 0% of Audio Compressor's.
Math keyboard ships an update monthly, Audio Compressor weekly. The most recent releases landed on July 6, 2026 and September 21, 2026 respectively.
| Parameter | Math keyboard | Audio Compressor |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (4 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 — better | 2 |
| Update frequency | Monthly | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #167 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Nikolai Rodionov | Suman Sharma |
Customer experience
Math keyboard
Audio Compressor
In-app purchases
Math keyboard
No in-app purchases
Audio Compressor
No in-app purchases
Questions
Is Math keyboard free?
Is Audio Compressor free?
Which has better reviews, Math keyboard or Audio Compressor?
Do Math keyboard or Audio Compressor have ads?
Which is updated more often, Math keyboard or Audio Compressor?
Other comparisons
