Comparison

Sound Meter vs SecureSync Notes

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

Head to head
About

Sound Meter

Measure environmental noise levels in decibels (dB) with this tool. It helps identify noise pollution, monitor sound levels, and protect your hearing by setting decibel warnings. Record noise, take photos, and create videos of decibel readings.

Highlights
  • Measure environmental noise in decibels (dB)
  • Evaluate average and maximum decibel values
  • Display decibel levels in gauge and graph
  • Record sound levels with photos and videos
  • Set decibel warnings for hearing protection
  • Calibrate for accuracy
  • Multiple themes
Features
Read full description

Sound Level Meter app can measure environment noise in decibel values (dB). Sound Level Meter is a perfect free auxiliary tool to evaluate the noise around you and the best noise detector & real-time audio analyzer, a necessary noise detector app for both individuals and families, it helps you stay away from noise pollution and concentrate. Compare the noise you record to reference, is it normal conversation, or as loud as subway train? Features of Decibel Meter & Sound Level Meter - Evaluate current noise reference - Evaluate avg/max decibel values (dB) - Display decibel in gauge & graph - Measure sound level with record - Save noise recording, take decibel photo and record decibel video - Display avg/min/max decibel values of records - 4 themes for your choice - Calibrate if you feel not accurate enough - Regulate voices visually - Set decibel warning for timely hearing protection Uses of Decibel Meter & Sound Level Meter - When you feel too noisy but without proof - Monitor sound level around us - Detect the decibel of your neighbors - Record your snores Levels of Noise in decibels (dB) according to the American Academy of audiology, from 20 dB to 120 dB between the division. Note: The max values are limited by your ios device, very loud noises may not be recognized accurately. This sound meter app is a necessary noise detector app for both individuals and families, it helps you stay away from noise pollution and concentrate. Just need one step to turn your phone into a sound meter tool to measure environmental noise, download this free Sound Meter app! About the In-App Subscription: --Subscription period: "Sound Meter Premium - Monthly" (continuous monthly subscription product), "Sound Meter Premium - Yearly" (continuous annual subscription product), "Sound Meter Premium - Permanently" --Payment: After user confirms the purchase and pays, it will be billed through your Apple ID account --Cancel renewal: If you need to cancel the renewal, please manually turn off the automatic renewal function in the iTunes/Apple ID setting management 24 hours before the current subscription period expires --Renewal: Apple’s iTunes account will be deducted within 24 hours before expiration. After the deduction is successful, the subscription period will be extended by one subscription period. --Privacy Policy: http://privacypolicy.oss-us-west-1.aliyuncs.com/protocol/privacy.txt --EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SecureSync Notes

Features
Read full description

Secure, encrypted notes that sync between iPhone, iPad and Mac. SecureSync Notes is designed for people who want simple cross-platform notes without subscriptions, advertising, analytics or data collection. Your notes are encrypted before syncing through iCloud, while still remaining searchable, shareable and available offline. Features include: - AES-GCM encryption using a 256-bit key securely stored using Apple Keychain - Encrypted note contents, titles, local cache and synced metadata - Automatic encrypted syncing between iPhone, iPad and Mac - Pinned notes that sync between your devices - Sort notes by Creation Date or Date Modified, oldest or newest first - Optional 6-character alphanumeric App Lock - One shared App Lock PIN across your Mac and iOS devices - Automatic locking on iPhone and iPad when appropriate - Mac App Lock without unwanted automatic locking while you are working - Sync Now controls on both macOS and iOS for manually forcing an immediate sync - Clear sync-status information - Search by both note title and note contents - Share notes using the standard Apple share system - Full offline support - Create, edit and delete notes while offline, then sync when you reconnect - Synced note deletions - Light and Dark Mode support - Pinned notes remain at the top while respecting your chosen sort order - macOS keyboard shortcuts including ⌘N for New Note and ⌘S for Save - macOS remembers your preferred window size - Extensive reliability improvements to note creation, selection and CloudKit syncing - Major security and privacy hardening - Zero advertising - Zero analytics - Zero tracking - Zero data collection - Zero in-app purchases - Zero subscription costs PRIVACY BY DESIGN SecureSync Notes does not contain advertising, analytics SDKs, third-party tracking services or hidden telemetry. Notes are encrypted before being stored in CloudKit. Titles and local cached note data are encrypted too, along with synced pinning and App Lock metadata. The app has undergone an extensive privacy and security review to reduce unnecessary logging, permissions and plaintext data storage. SHARED APP LOCK SecureSync Notes can optionally be protected with a 6-character combination of letters and numbers. Your App Lock configuration is synchronised securely so your Mac, iPhone and iPad use the same PIN rather than maintaining separate passwords. CROSS-DEVICE PINNING Pin an important note on your iPhone and it becomes pinned on your Mac too — and vice versa. Pinned notes remain at the top of your list while the rest of your notes follow your chosen sorting order. SYNC WHEN YOU WANT IT SecureSync Notes normally synchronises automatically through iCloud. You can also use Sync Now at any time on Mac, iPhone or iPad to immediately request the latest notes and synchronised state. The app continues to work without an internet connection. Changes made while offline are queued and synchronised when connectivity returns. ONE PURCHASE. NO SUBSCRIPTION. Buy SecureSync Notes once and use it across supported Mac, iPhone and iPad devices through the same App Store purchase. There are no subscriptions, no recurring charges and no paid feature upgrades. Future updates are included. NOTE ABOUT iCLOUD SYNC iCloud synchronisation is not always instantaneous. Changes normally propagate within a few seconds, but network conditions and iCloud itself can occasionally introduce a short delay. If something has not appeared on another device yet, use Sync Now or allow a few seconds for iCloud to propagate the change. Offline creations, edits and deletions will synchronise after the device reconnects to the internet.

Screenshots

Sound Meter4 screens
SecureSync Notes4 screens

Verdict

The call

The clearest difference is price: Sound Meter at Free against SecureSync Notes's $5.00. Sound Meter also leads on iOS requirement (15.0 vs 18.0). SecureSync Notes's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Sound Meter is free to download; SecureSync Notes costs $5.00 up front. Sound Meter sells 3 in-app purchases, starting at $1.99 per month. SecureSync Notes asks for nothing beyond the download.

UpkeepUpdate frequency

Sound Meter ships an update every 6 weeks, SecureSync Notes fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Sound Meter versus SecureSync Notes: the parameters behind the verdict, then further details
ParameterSound MeterSecureSync Notes
PriceFree — better$5.00
Rating4.3 (31 ratings) — better—
Positive reviews56.4% of reviews—
Number of ratings31 — better—
Update frequencyEvery 6 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.0 — better18.0
Further details — not scored
Size38 MB2 MB
Age rating4+4+
DeveloperCoocent Ltd.THABO ALEJANDRO B GRIFFITHS

In-app purchases

3 purchases

Sound Meter

Subscriptions2
  • Sound meter premium - monthly$1.991 Month
  • Sound meter premium - yearly$9.991 Year
One-time1
  • Sound meter premium- permanent$12.99
None

SecureSync Notes

No in-app purchases

Questions

Is Sound Meter free?
Sound Meter is free to download, with in-app purchases available.
Is SecureSync Notes free?
SecureSync Notes costs $5.00, with no in-app purchases.
Do Sound Meter or SecureSync Notes have ads?
Sound Meter shows ads; SecureSync Notes does not.
Which is updated more often, Sound Meter or SecureSync Notes?
Sound Meter ships an update every 6 weeks, and SecureSync Notes fortnightly. Most recently, Sound Meter was updated on November 3, 2026 and SecureSync Notes on November 5, 2026.

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