Comparison

GoCertius vs NoiseGuard

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

Head to head
About

GoCertius

Features
Read full description

In the digital age, verifying the authenticity of your photos, videos, files, and even your chat messages in messaging apps can be essential. With GoCertius, an innovative qualified time-stamping application, you can now certify photos, videos, files, and — new to our app — your Telegram chats! This means that every message, file, and action in your conversations is backed with the highest legal validity. GoCertius isn’t just another app; it’s a reliable tool that lets you certify photos, videos, digital files, and now even Telegram chats in real-time, directly from your phone. Every "Certius" generated becomes irrefutable, legally valid evidence, developed under strict EU regulatory standards to ensure the integrity and authenticity of all your digital assets. GoCertius’s qualified time-stamping technology, provided by EADTrust, is much more than a simple date and time marker. This sophisticated digital signature system certifies the authenticity of each registered file, and with blockchain integration via LacNet, a secondary record is created for maximum security. Are you in an important conversation on Telegram? Do you need to ensure that every message and file is certified to avoid potential legal issues down the road? With GoCertius, you can now rest assured that your Telegram conversations are protected with legal validity. Download GoCertius from the App Store and experience what it’s like to certify all your digital files and Telegram chats with the most advanced, trusted time-stamping technology on the market.

About

NoiseGuard

Features
Read full description

Woken up by stomping upstairs? Loud neighbors, barking dogs, or ongoing construction ruining your peace of mind? Complaining to landlords, HOAs, or building management often gets dismissed without objective proof. NoiseGuard is your dedicated noise monitoring and evidence logging station. Turn your iPhone into a reliable decibel sound meter and transform subjective complaints into concrete, timestamped evidence. --- KEY FEATURES Real-Time Decibel Meter • Precise environmental sound level detection with real-time waveform visualization. • Clear 3-tier comfort indicators (Safe, Moderate, Loud) to evaluate noise at a glance. Bedside Night Guard • Set custom decibel thresholds before going to bed. • Overnight monitoring automatically logs timestamps, durations, and peak decibels when noise exceeds your threshold. • Minimalist OLED nightstand clock face that stays awake without disturbing your sleep. Audio Evidence Recording • Record ambient sound while tracking synchronized decibel levels. • Free tier supports 30s clips; upgrade to Pro for up to 180s (3 minutes) continuous recording. • Intuitive timeline playback with 5s skip buttons and variable playback speeds. Incident Timeline & Tagging • Organize noise incidents with one-tap tags: Stomping, Construction, Loud TV, Barking, etc. • Add custom notes to reconstruct past noise events with ease. 24-Hour Trend Analytics • Comprehensive 24-hour distribution charts highlight frequent disruption periods, including designated night quiet hours. • Track cumulative incident count, total duration, and historical maximum decibels. Official PDF Report Export • Generate clean, objective A4 PDF noise monitoring reports in one tap. • Print or share via AirDrop, Email, or Messages to communicate with landlords or property managers with confidence. 100% On-Device & Private • All audio processing is performed locally on your device. • No recordings are ever uploaded to cloud servers. --- NoiseGuard Pro (One-Time Purchase Lifetime Access) • Unlock 180s extended audio evidence recording • 100% ad-free experience • Unlimited high-resolution PDF report exports • High-precision acoustic DSP vector processing --- Take control of your living environment today. Download NoiseGuard and restore your quiet life!

Screenshots

GoCertius4 screens
NoiseGuard4 screens

Verdict

The call

The clearest difference is in-app purchases: GoCertius at none against NoiseGuard's 1. GoCertius also leads on ads (none vs shown). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NoiseGuard sells 1 one-off in-app purchase. GoCertius asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 4 level
GoCertius versus NoiseGuard: the parameters behind the verdict, then further details
ParameterGoCertiusNoiseGuard
PriceFreeFree
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS17.6 — better18.0
Further details — not scored
Size32 MB7 MB
Age rating4+4+
DeveloperEAD TrustChia-Chun Hsieh

In-app purchases

None

GoCertius

No in-app purchases

1 purchases

NoiseGuard

One-time1
  • NoiseGuard Pro Lifetime$4.99

Questions

Is GoCertius free?
GoCertius is free to download, with no in-app purchases.
Is NoiseGuard free?
NoiseGuard is free to download, with in-app purchases available.
Do GoCertius or NoiseGuard have ads?
NoiseGuard shows ads; GoCertius does not.
Which is updated more often, GoCertius or NoiseGuard?
GoCertius ships an update monthly, and NoiseGuard monthly. Most recently, GoCertius was updated on October 30, 2026 and NoiseGuard on November 10, 2026.

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