Sound Meter vs Thought Processor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Meter
Measure and visualize sound levels in decibels with a professional graphic display. Track historical data, back up recordings, and access various device tools like a compass and metal detector. Offers multiple language support and device information.
- Decibel measurement and display
- Logarithmic graph for Max/Avg/Min values
- Sound data history
- Backup and synchronize files
- Device information access
- Digital compass
- Metal detector
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The sound level meter application (SPL) checks and displays the measured dB values In your immediate area. The app shows decibel values by measuring the noise, in a professional graphic view. The Sound level meter (SPL) application has all the features that you need- • Indicate and display decibels by gauge • Record of Max/Avg/Min decibel values, via clear logarithmic graph • The sound meter app will show you accurate sound value • History page - contain all your decibel data history • Backup and synchronize files- WhatsApp, Google Drive, Dropbox, and more • The sound level meter app is free Note- Microphones in most IOS devices are aligned to a human voice. Loud sounds(over ~90 dB) may not be recognized. By using the Tools app, You will get easy access to the following device information- • Device Model • Data Usage • WiFi • Hot Spot • Screen size • Version • UUID • Battery Percentage • Bluetooth By using the Tools app, you will get straightforward access to navigate your device settings- • WiFi • Brightness • Flashlight • Bluetooth • NFC • Data Usage • Hotspot • Sound • Location • Accessibility • Cast By using the Tools app, You will enjoy features such as Digital Compass- • Show True North • Show level • Show Magnetic Field Power • Show Device Slope Angle • Level Error Correction • Multiple language support By using the Tools app, You will enjoy features such as Metal Detector & Gold Finder- • Detect the metals around you • Digital format display • Vibration alarm when finding metals • History page- contains all your search history By using the Tools app, you can enjoy more than ten language translations to choose from, Just set your language in the app settings. By using the tools app, you will get straightforward access to navigate your device settings- • Brightness • Flashlight • Bluetooth • NFC • Data Usage • Hotspot • Sound • Location • Accessibility • Cast By using the tools app, you will enjoy features such as Digital Compass- • Show True North • Show Magnetic Field Power • Multiple language support Privacy Policy: https://www.yalintech.com/privacy_policy_soundMeter.html Terms Of Use: https://www.yalintech.com/terms_of_use_soundMeter.html Our site: https://www.yalintech.com/ Support: support@yalintech.com We will appreciate any positive feedback. Thanks a lot!
Thought Processor
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Thought Processor turns the thoughts you'd lose into ones you can actually use. Tap once, talk, and it transcribes and organizes what you said — right on your device. No account. No cloud. No subscription. Everything stays on your iPhone. CAPTURE IN ONE TAP • Start recording from the app, a Home Screen widget, or the Lock Screen • Keep talking even while your phone is locked • Type or paste notes too — it all lives in one place MADE SENSE OF, AUTOMATICALLY • On-device transcription (Apple's speech engine) — fast and private • Your rambling becomes a clean, readable note • Tasks and to-dos are pulled out for you, with due dates • Tag and group thoughts into Projects with living summaries FIND ANYTHING • Full-text search across every note • Spotlight search from your Home Screen • A map of where you captured each thought YOURS, AND PRIVATE • 100% on-device — we never see your recordings, transcripts, or notes • Works with no internet connection • A locked Private area (Face ID) for sensitive thoughts, kept out of search and widgets • Seven themes, each with a matching app icon PAY ONCE • Try it free for 7 days • Then a single $6.99 purchase unlocks it forever — no subscription, ever Thought Processor is for anyone who thinks out loud: capturing ideas on a walk, turning a voice memo into a task list, journaling, or just getting a noisy head onto the page.
Screenshots
Verdict
The clearest difference is ads: Thought Processor at none against Sound Meter's shown. Thought Processor also leads on update cadence (every 2 days vs monthly). Sound Meter's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support 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
Both are free to download. Sound Meter sells 3 in-app purchases, starting at $4.99 per month and Thought Processor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sound Meter ships an update monthly, Thought Processor every 2 days. Both last shipped on October 9, 2026.
| Parameter | Sound Meter | Thought Processor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (36 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 36 — better | — |
| Update frequency | Monthly | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 24 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Yalintech | Brandon Gould |
In-app purchases
Sound Meter
- Monthly Subscription3 Days trial$4.991 Month
- Yearly Subscription3 Days trial$7.991 Year
- One time purchase$10.99
Thought Processor
- Thought Processor — Lifetime$6.99
Questions
Is Sound Meter free?
Is Thought Processor free?
Do Sound Meter or Thought Processor have ads?
Which is updated more often, Sound Meter or Thought Processor?
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