Comparison

Frequency Detector Tool vs Q Sahara

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

Head to head
About

Frequency Detector Tool

Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.

Highlights
  • Frequency to musical note conversion
  • Cents sharp/flat indication
  • In-key analysis for selected keys
  • Nearest cut candidate identification
  • Vocal context notes for EQ
  • Full frequency chart exploration
  • Solfeggio frequencies with associations
Features
Read full description

Frequency Detector Tool is a free, elegant frequency and musical-key analyzer for producers, mixing engineers, sound healers, and the musically curious. Type in any frequency in Hertz — like 315, 2.5k, or 29834 — and instantly see: The musical note it maps to (e.g. A4 = 440 Hz) How many cents sharp or flat it is Whether it's IN KEY for the key you've selected The nearest "cut candidate" — the closest out-of-key frequency Vocal context notes to guide your EQ decisions Pick your key from all 12 tones and the whole analysis updates instantly, showing the in-key snap, the nearest cut, and vocal-range context (like the "Mud Zone" around 250–400 Hz). Open the full frequency chart to see every note across octaves 0–7, laid out for boosting and cutting in your chosen key — scroll to explore the entire spectrum. Also included: Clickable Solfeggio frequencies (432, 528, 639, 741, 852, 963) with a note on what each is associated with "Did You Know?" music-theory facts A calm, sacred-geometry inspired interface Frequency Detector Tool is completely free — no ads, no subscriptions, no catch. It's my first app, made with love. If it helps you, an optional donation on eyeheru369.com supports more free tools. Works on iPhone, iPad, and Apple Vision Pro.

About

Q Sahara

Features
Read full description

Drive it. Shape it. Move on. Q Sahara is an input-driven compressor designed for quick decisions and musical results. There is no threshold to chase and no millisecond math to interpret: drive the signal into Sahara, set the ratio, and let its program-dependent behavior follow the music. INPUT-DRIVEN COMPRESSION A fixed internal threshold means compression is controlled by how hard you drive the input — just like classic analog workflows. MUSICAL TIMING Attack and release are program-dependent, adapting to phrasing, groove and dynamics instead of fixed time values. RATIO WITH CHARACTER Ratio and knee work together. Lower ratios stay smooth and forgiving; higher ratios add firmness and control without limiter behavior. MADE FOR iOS • AUv3 plugin — use it in AUM, GarageBand, Logic Pro for iPad, Cubasis, Loopy Pro and other AUv3 hosts • External sidechain support with dedicated sidechain high-pass filter • Standalone app included • Two hand-crafted themes: Sand Dune and Black Sand • HD and Eco oversampling modes • Zero samples latency, ultra-low CPU • A/B compare and preset management • Factory presets, including artist presets by Grammy-winning engineers FOCUSED BY DESIGN No unnecessary controls, no distractions. Sahara does one thing and does it well: it delivers instant results, stays responsive to your material, and lets you mix by ear instead of by numbers. “Really interesting compressor! Sahara seems to improve the sound of everything I put it on.” — Mark Linett, three-time Grammy-winning producer and engineer “I reach for the Sahara compressor when I want character. It shines on bass, acoustic guitar, snare, parallel drums, and more!” — Brian Vibberts, seven-time Grammy Award-winning producer and engineer

Screenshots

Frequency Detector Tool1 screens
Q Sahara2 screens

Verdict

The call

The clearest difference is price: Frequency Detector Tool at Free against Q Sahara's $19.99. On ads, in-app purchases, 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

Frequency Detector Tool is free to download; Q Sahara costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
Frequency Detector Tool versus Q Sahara: the parameters behind the verdict, then further details
ParameterFrequency Detector ToolQ Sahara
PriceFree — better$19.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 3 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size9 MB32 MB
Age rating4+4+
DeveloperEye HeruPulsar Modular

In-app purchases

None

Frequency Detector Tool

No in-app purchases

None

Q Sahara

No in-app purchases

Questions

Is Frequency Detector Tool free?
Frequency Detector Tool is free to download, with no in-app purchases.
Is Q Sahara free?
Q Sahara costs $19.99, with no in-app purchases.
Do Frequency Detector Tool or Q Sahara have ads?
Neither Frequency Detector Tool nor Q Sahara shows ads.

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