Comparison

Note Freak vs JP

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

Head to head
About

Note Freak

This reference app displays musical pitches and their corresponding frequencies in hertz. It also associates various musical instruments with these hertz values and organizes the frequency spectrum into easily accessible tabs.

Highlights
  • Musical pitch display
  • Frequency values in hertz
  • Instrument associations
  • Organized frequency spectrum tabs
  • Reference for musicians
Features
Read full description

Note Freak is a reference app designed for musicians and recording engineers. I displays musical pitches along with the associated frequency value for each pitch in hertz. Also, various musical instruments are associated with the hertz value. The frequency spectrum is also split out into tabs allowing users quick and easy access for each spectrum.

About

JP

Features
Read full description

[Ad-Free Pro Version] The Legendary Vintage Sound Evolves for Pros! Thick, warm, and endlessly energetic. This authentic analog synthesizer app—built with deep respect for the legendary "JP Series" classics—is finally here as a "Pro Version," completely ad-free and packed with expanded features. While keeping the intuitive UI of the free version, we have added a brand-new professional control section to push your sound expressiveness to the limit. Immerse yourself in sound creation without any advertising distractions. Exclusive Pro Features 100% Ad-Free: Zero ads to interrupt your flow, performance, or inspiration. High-Quality FX Suite: Newly equipped with "Spatial Reverb" for immense depth, and "Delay/Chorus" to recreate that iconic, ultra-thick chorus sound. Deep Sound Shaping: Unlock advanced parameters designed for synth enthusiasts, including Master Tuning and Velocity Sensitivity to let your touch shape the tone. Key Features 8 Curated JP Voice Presets: Ready-to-use sounds, from classic fat brass to airy, floating pads. Intuitive VCF Filter: Real-time slider control over Cutoff, Resonance, ENV, MOD, and ATK. Arpeggiator & Performance Modes: Fuel your live play with SPLIT mode, SOLO mode, and a powerful arpeggiator. Retro Analog UI: Beautifully crafted with knurled metal knobs and classic LED indicators that evoke the original hardware. Perfect as an inspiration tool in the studio or a secret weapon for live gigs. Unleash the golden era of analog sound on your iPhone today!

Screenshots

Note Freak1 screens
JP2 screens

Verdict

The call

The clearest difference is price: Note Freak at Free against JP's $0.49. Note Freak also leads on iOS requirement (10.0 vs 26.5). JP's advantage is update cadence (every 2 days vs every 36 months). On ads, in-app purchases and device support 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

Note Freak is free to download; JP costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Note Freak ships an update every 36 months, JP every 2 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Note Freak versus JP: the parameters behind the verdict, then further details
ParameterNote FreakJP
PriceFree — better$0.49
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 36 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better26.5
Further details — not scored
Size2 MB31 MB
Age rating17+4+
DeveloperKevlee Software LLCKouki Yoshimoto

In-app purchases

None

Note Freak

No in-app purchases

None

JP

No in-app purchases

Questions

Is Note Freak free?
Note Freak is free to download, with no in-app purchases.
Is JP free?
JP costs $0.49, with no in-app purchases.
Do Note Freak or JP have ads?
Neither Note Freak nor JP shows ads.
Which is updated more often, Note Freak or JP?
Note Freak ships an update every 36 months, and JP every 2 days. Most recently, Note Freak was updated on October 20, 2026 and JP on October 19, 2026.

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