Comparison

Frequency Generator vs DeciMate SPL

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

Head to head
About

Frequency Generator

Create audio tones from 1 Hz to 22 kHz with adjustable frequency and waveform. Offers a sleep timer and dark mode. Free users have limited daily uses and waveform options.

Highlights
  • Generate tones from 1 Hz to 22 kHz
  • Adjustable frequency and waveform
  • Multiple waveform options
  • Sleep timer
  • Dark mode interface
  • Free and premium tiers
Features
Read full description

Generate frequencies from 1 Hz to 22 kHz directly on your device. Control frequency, waveform, and playback with ease. Features: • Set frequencies manually or with slider/fine-tune buttons • Multiple waveforms: Sine (free), Square, Triangle, Saw, Pulse, Narrow, White Noise, Pink Noise (premium) • Sleep timers to stop playback automatically • Dark mode with neon-inspired interface Free users: • 3 uses per day • Sine waveform • 1-minute timer Premium unlocks: • Unlock all waveforms • Remove daily limit • Unlock timers Please be mindful of your volume when playing high frequencies.

About

DeciMate SPL

Features
Read full description

DeciMate SPL helps you monitor sound levels during rehearsals, DJ sets, small events, venue checks, and live-sound work. It turns your iPhone into a practical SPL monitoring companion with a clean real-time meter, calibration tools, threshold alerts, session history, export options, and expressive visual feedback that makes level changes easy to understand at a glance. Use DeciMate SPL to keep an eye on loudness trends, spot peaks, document sessions, and share live readings across your local network for dashboards and creative workflows. Features: - Live approximate SPL monitoring - Clear circular input meter with threshold-based visual feedback - Manual calibration offset and quick “Match Reference” calibration - Adjustable warning, critical, and peak thresholds - Threshold presets for common monitoring situations - Fast and slow response modes - Session history graph - Detailed session export with live-monitoring values - Companion animation with fullscreen focus mode - Screen-awake fullscreen monitoring for visual use during sessions - DeciMate Live Link for local network JSON streaming - Optional OSC streaming for dashboards, tools, and live-production workflows Important: DeciMate SPL uses the device microphone for practical monitoring. It is not a certified Class 1 or Class 2 sound level meter and should not be used as the sole tool for legal, workplace-safety, or compliance measurements.

Screenshots

Frequency Generator3 screens
DeciMate SPL4 screens

Verdict

The call

The clearest difference is in-app purchases: DeciMate SPL at none against Frequency Generator's 1. On price, ads, 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. Frequency Generator sells 1 one-off in-app purchase. DeciMate SPL asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Frequency Generator versus DeciMate SPL: the parameters behind the verdict, then further details
ParameterFrequency GeneratorDeciMate SPL
PriceFreeFree
Rating4.3 (8 ratings) — better—
Number of ratings8 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size1 MB3 MB
Age rating12+4+
DeveloperShota SukhiashviliDavid Torres

In-app purchases

1 purchases

Frequency Generator

One-time1
  • Premium.$4.99
None

DeciMate SPL

No in-app purchases

Questions

Is Frequency Generator free?
Frequency Generator is free to download, with in-app purchases available.
Is DeciMate SPL free?
DeciMate SPL is free to download, with no in-app purchases.
Do Frequency Generator or DeciMate SPL have ads?
Neither Frequency Generator nor DeciMate SPL shows ads.

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