Hidden Timer vs DecibelPeak
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hidden Timer
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A timer app that allows user to hide the time while the timer is running.
DecibelPeak
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Decibel Peak transforms your device into a professional-grade sound level meter and audio analyzer. Whether you're checking noise levels at home, monitoring sound in concerts, or optimizing your studio setup, Decibel Peak gives you accurate readings in real time. Features: Real-time Decibel Monitoring – Instantly measure sound levels with high accuracy. Frequency Spectrum & Waterfall Display – Visualize audio frequencies in a dynamic, colorful interface. dB Curve Tracking – Monitor sound variations over time with detailed graphs. Noise Categories – Quickly identify whether the environment is Quiet, Moderate, or Loud. Protect Your Hearing – Stay informed about potentially harmful sound levels. With its sleek interface and professional features, Decibel Peak is your go-to tool for sound measurement and audio analysis.
Screenshots
Verdict
The clearest difference is ads: DecibelPeak at none against Hidden Timer's shown. Hidden Timer's advantage is update cadence (every 2 weeks vs every 4 months) and device support (3 vs 1). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Hidden Timer ships an update every 2 weeks, DecibelPeak every 4 months. The most recent releases landed on September 2, 2026 and September 14, 2026 respectively.
| Parameter | Hidden Timer | DecibelPeak |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.8.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | Andre Frelicot |
In-app purchases
Hidden Timer
No in-app purchases
DecibelPeak
No in-app purchases
Questions
Is Hidden Timer free?
Is DecibelPeak free?
Do Hidden Timer or DecibelPeak have ads?
Which is updated more often, Hidden Timer or DecibelPeak?
Other comparisons
