Comparison

Authenticator App vs SoundLevel

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

Head to head
About

Authenticator App

Securely store and generate two-factor authentication codes with end-to-end encryption. Syncs across all your Apple devices and offers offline access, making logins quick and easy.

Highlights
  • End-to-end encryption
  • iCloud sync across devices
  • Home Screen widget
  • Offline code generation
  • Easy import from other apps
  • Supports all popular services
  • Advanced OTP options
Features
Read full description

Store your tokens, generate authentication codes, automatically sync & backup your accounts in iCloud while ensuring your data is fully secured by using an end-to-end encryption. Authenticator app uses the zero knowledge policy, ensuring maximum security. Your data is always fully encrypted at all time. Authenticator does not collect any tracking data and strictly no user content data is collected, we value our users privacy. Features: - Maximum security & Zero knowledge policy All data stored in Authenticator is always encrypted, even when it's stored in iCloud to ensure that you are the only one who can access your data. - Synchronization across all devices All your accounts are automatically synced across all your devices, including iPhone, iPad, Apple Watch, Macbook, iMac... - Widget Access your 2FA codes even faster, directly from your Home Screen with the Widget. - Offline access You can access your generated codes at any time, even while in airplane mode! All codes are generated offline and stored locally, you don't need internet access to get your login codes. - Easy import You can import your accounts in just a tap and securely from Google Authenticator, any photo or file and of course by scanning QR Codes. - Modern UI We value the user experience and have provided a seamless experience fully integrated in all the Apple ecosystem. Dark mode, haptic feedbacks, gestures, automatic data sync... - All services are supported We support every popular accounts like Facebook, Messenger, Coinbase, Binance, Kraken, Epic games, Playstation, Amazon, Gmail, Instagram, Snapchat, Roblox and thousands of other providers. - Advanced options We support every type of OTP codes, HOTP, TOTP, custom period, counters, different algorithms, 6 to 8 digits tokens... - And a lot of features We constantly improve our app, don't hesitate to contact us to request a missing feature or an improvement. Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.freeprivacypolicy.com/live/adf53f4b-f09c-4b6a-a697-9fb82af0217a

About

SoundLevel

Features
Read full description

SoundLevel uses microphone amplitude to provide an approximate uncalibrated sound-level estimate in dB. Log sessions and compare how your estimates change across places and time. SoundLevel is not A-weighted, calibrated, or a certified measurement instrument. Values can vary by device, case, placement, and environment. Do not use the app for safety, occupational compliance, medical, or legal decisions. WHAT SHIPS - A large live estimate with approximate minimum, energy average, and maximum values - Descriptive level bands and familiar examples for personal comparison, not safety classification - A user-chosen threshold alert that is not a safety warning - Recorded sessions with history, search, sorting, notes, and charts - A rough guideline reference based on an 85 dB and 3 dB relationship when the estimated average is at least 85 dB - No guideline time or percentage calculated below 85 dB - Six-week summaries, week-over-week comparison, and highest logged estimates - A reference offset that shifts the displayed estimate but does not calibrate the device - A one-page PDF, CSV history, and share card with the limitations included - Local storage with no account, cloud sync, analytics, or tracking FREE VS LIFETIME The live estimate with minimum, average, maximum, level band, and reference offset is free. One lifetime purchase adds session recording, history and trends, threshold alerts, rough guideline comparisons, and PDF and CSV export. There is no subscription. SoundLevel provides approximate uncalibrated estimates only. It is not A-weighted or certified. Do not use it for safety, compliance, medical, or legal decisions.

Screenshots

Authenticator App4 screens
SoundLevel4 screens

Verdict

The call

The clearest difference is in-app purchases: SoundLevel at none against Authenticator App's 2. SoundLevel also leads on update cadence (daily vs weekly). Authenticator App's advantage is iOS requirement (16.0 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Authenticator App sells 2 in-app purchases, starting at $14.99 per year. SoundLevel asks for nothing beyond the download.

UpkeepUpdate frequency

Authenticator App ships an update weekly, SoundLevel daily. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Authenticator App versus SoundLevel: the parameters behind the verdict, then further details
ParameterAuthenticator AppSoundLevel
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size10 MB5 MB
Age rating4+4+
DeveloperRayane Kurrimboccus9547-8715 QUEBEC INC.

In-app purchases

2 purchases

Authenticator App

Subscriptions1
  • Pro version - Yearly$14.991 Year
One-time1
  • Pro version - Lifetime$34.99
None

SoundLevel

No in-app purchases

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is SoundLevel free?
SoundLevel is free to download, with no in-app purchases.
Do Authenticator App or SoundLevel have ads?
Neither Authenticator App nor SoundLevel shows ads.
Which is updated more often, Authenticator App or SoundLevel?
Authenticator App ships an update weekly, and SoundLevel daily. Most recently, Authenticator App was updated on November 4, 2026 and SoundLevel on November 5, 2026.

Other comparisons