Frequency Generator vs DeciMate SPL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Generate tones from 1 Hz to 22 kHz
- Adjustable frequency and waveform
- Multiple waveform options
- Sleep timer
- Dark mode interface
- Free and premium tiers
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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.
DeciMate SPL
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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
Verdict
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
Both are free to download. Frequency Generator sells 1 one-off in-app purchase. DeciMate SPL asks for nothing beyond the download.
| Parameter | Frequency Generator | DeciMate SPL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (8 ratings) — better | — |
| Number of ratings | 8 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | Shota Sukhiashvili | David Torres |
In-app purchases
Frequency Generator
- Premium.$4.99
DeciMate SPL
No in-app purchases
Questions
Is Frequency Generator free?
Is DeciMate SPL free?
Do Frequency Generator or DeciMate SPL have ads?
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