Sound Meter vs Text Toolbox
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sound Meter
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Get a clearer view of the sounds around you. Sound Meter uses your deviceβs microphone to estimate sound levels and show how they change. β’ View the current estimated level in dB. β’ Follow the last 60 seconds of active measurement on a live graph. β’ Check minimum, average and maximum readings for the whole session. β’ Pause, resume or reset a measurement. β’ Explore a guide with familiar sound examples. β’ Use English, Korean, Japanese, Simplified Chinese, Spanish, Portuguese, German or French. The app follows your deviceβs preferred supported language automatically. You can also save a language choice or return to Automatic at any time. If none of your device languages are supported, the app uses English. Tap Start and allow microphone access to begin. Measurement pauses when the app leaves the foreground. Microphone audio is processed on your device; the app does not save audio recordings or upload microphone audio. No account is required. Readings vary with your device and microphone and are estimates for general reference. The displayed average is the arithmetic mean of session readings, not an energy average (Leq). This is not a calibrated sound level meter. Use dedicated equipment for precise measurements or safety decisions. The app includes ads. Advertising consent and privacy choices are shown where required. Privacy: https://www.slox.co.kr/privacy/soundmeter Support: contact@slox.co.kr
Text Toolbox
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Welcome to the ultimate, all-in-one text processing toolkit! Whether you are a developer formatting code, a data analyst cleaning up CSVs, or just someone who needs to extract specific data from a massive wall of text, this app provides over 100+ precision tools to get the job done instantly. Why choose this app over online websites or AI? - Absolute Privacy (100% Offline): Stop pasting your sensitive data, API keys, or personal information into random websites or AI chatbots. Our app processes everything locally on your own device. Your data never leaves your screen and never touches a server. - Mathematical Precision: AI models are great, but they often hallucinate, rewrite things you didn't ask for, or mess up formatting. Our tools provide exact, predictable, and deterministic results every single time. No "prompt engineering" required. - Lightning Fast & Always Available: No waiting for server responses, no loading screens, and no internet connection needed. Process massive amounts of text instantly, anywhere you go. - KEY FEATURES & TOOLS - Text Cleaning & Formatting Change Case (UPPERCASE, lowercase, Title Case, Proper case) Remove Empty Lines, Duplicate Lines, & Extra Spaces Remove HTML Tags, Accents, Punctuation, or Emojis Add/Remove Prefixes & Suffixes to lines or words Left, Right, Center Align, and Indent text - Search, Extract & Compare Advanced Find & Replace (with Regex support) Compare Texts to spot exact differences Extract Data (URLs, Emails, Numbers) from raw text Extract JWT Data or JSON fragments Filter and Sort lines, words, or paragraphs alphabetically - Text Analytics & Insights Word, Letter, and Line Counts Calculate Word Frequency & find top words Find Unique or Duplicate words/letters Analyze Text Entropy and Complexity - Developer & Data Tools Format JSON instantly for readability Convert between CSV and JSON formats Generate Hashes (MD5, SHA, etc.) Encode/Decode text (Base64, URL, etc.) Generate URL Slugs or Lorem Ipsum placeholder text Binary to Text Converter Who is this app for? Developers & Programmers: Quickly format JSON, encode data, or clean up log files without relying on internet tools. Data Analysts: Convert CSVs, remove duplicates, and sort massive data sets with mathematical accuracy. Writers & Editors: Analyze text statistics, count words, and fix spacing issues instantly. Privacy-Conscious Users: Anyone who handles sensitive text and refuses to risk pasting it into cloud-based AI tools. Stop relying on unpredictable AI and unsecure web tools for your text formatting needs. Download the ultimate offline text utility today and take complete control over your data!
Screenshots
Verdict
The clearest difference is iOS requirement: Text Toolbox at 13.0 against Sound Meter's 15.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sound Meter | Text Toolbox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | β |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 21 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | SEOKWON YANG | ngo phong |
In-app purchases
Sound Meter
No in-app purchases
Text Toolbox
No in-app purchases









