Comparison

Audio Frequency Analyzer vs Displayer

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

Head to head
About

Audio Frequency Analyzer

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

Highlights
  • Real-time frequency spectrum response measurement (1/3 octave, 30 bands)
  • FFT Analyzer
  • Observation frequency range: 20 - 23000 Hz
  • Calibration function for high accuracy
  • Supports built-in and external microphones
  • Snapshot and averaging functions
Read full description

"Audio Frequency Analyzer" is a powerful real-time audio analyzer (RTA) app for iPhone. With its simple operation, you can easily measure and evaluate your sound environment. This app measures the frequency response in 30 split band scale of 1/3 octave in real time. It can also display the FFT analysis results. It supports calibration for 1/3-octave bands. By adjusting the characteristics to match not only the built-in microphone but also your external microphone, it achieves high measurement accuracy. "Audio Frequency Analyzer" can be used for various applications, including sound room tuning, speaker settings, audio equipment testing, stage setup measurement, sound mixing environment evaluation and noise environment investigation. Features: - Frequency spectrum response measurement of 1/3 octave unit, 30 bands. (OCT) - FFT Analyzer (FFT) - Observation frequency range: 20 - 23000 Hz - Logarithmic amplitude display. - Touch-scroll function to adjust visible amplitude ranges. - Display the measured value of 1/3 oct bands at OCT mode. (dB@OCT) - Function to change the graph slope at FFT mode. (Slope): -3dB/oct (less than 1kHz), +3dB/oct (1kHz or higher) - Peak hold function. (Hold) - Average display function. (Avg): Time linear averaging. Fast-2.56sec, Slow-12.8 sec - Display response control. (Fast/Slow) - Reset of Measurement display position. (Scroll) - Snapshot of Measurement display. (Snap) - Calibration function in OCT mode. (Calibrate): 1/3 octave band offset and total offset setting. - Supports built-in microphone, headset microphone, and external digital audio connection. Note: The first time you access your microphone and photos after installing the app, the iOS system will ask you for permission to access them. If you have not enabled this setting, the app will not be able to access them due to iOS system privacy restrictions. Please enable the access permission in the iOS setting "Settings > Privacy & Security > Photos or Microphone". Please visit our iOS app support page for more information about this app.

About

Displayer

This utility app enables automated video looping on your iPad and iPhone for various business and event scenarios. It offers smooth transitions and a simple interface for displaying promotional or informational videos.

Highlights
  • Automated video looping
  • Smooth video transitions
  • Business and event display
  • Simple one-touch playback
  • Ad-free experience
Features
Read full description

This simple application is built for displaying automated video looping on your iPad and iPhone, also allows you to use at multiple business scenes such as shows, events, parties, exhibition, and in entrance ways or office.  It includes the system that decreases the jerky video transition. And it repeat a movie very smoothly. Your ideal automated video looping presenter is just one touch away! ※Select a movie through iTunes to play. ※Launch the application to display videos. ※The application can loop video one at a time, and thus, it requires to manually switch movies. ※The application don't have any button on display because of giving priority to display advertisement movie. ※If you want to display another new movie, Please close this application completely before copy new movie. このアプリは映像を鑑賞するためではなく、色々な目的で映像をディスプレイ、表示する為に開発しました。 シンプルな構造を目指したこのアプリは ワンタッチで映像が再生されます。 ループ再生機能が搭載されており、ループ時のカクツキを軽減するシステムも内包しております。 ※任意のムービーをitunesを通してアプリに入れることができます。 ※再生ムービーは1つになります。 ※他のムービーをディスプレイさせたい場合は、一度アプリを完全に落としてからアプリ内の旧ムービーの削除、そして新しいムービーのコピーを行って下さい。 ※ディスプレイ表示優先の為、画面には再生ボタンなどは表示しないようにしてあります。

Screenshots

Audio Frequency Analyzer4 screens
Displayer4 screens

Verdict

The call

The clearest difference is review sentiment: Audio Frequency Analyzer at 60% against Displayer's 0%. Audio Frequency Analyzer also leads on rating (3.7 vs 3.0) and update cadence (every 8 months vs every 29 months). Displayer's advantage is price ($0.99 vs $9.99) and device support (3 vs 1). On ads, in-app purchases and monetization model 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

Audio Frequency Analyzer costs $9.99 and Displayer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Audio Frequency Analyzer holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 60% of Audio Frequency Analyzer's written reviews are positive against 0% of Displayer's.

UpkeepUpdate frequency

Audio Frequency Analyzer ships an update every 8 months, Displayer every 29 months. Both last shipped on September 9, 2026.

Scorecard7 real differences · 3 level
Audio Frequency Analyzer versus Displayer: the parameters behind the verdict, then further details
ParameterAudio Frequency AnalyzerDisplayer
Price$9.99$0.99 — better
Rating3.7 (3 ratings) — better3.0 (1 ratings)
Positive reviews60.0% of reviews — better0.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 8 months — betterEvery 29 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.211.0 — better
Further details — not scored
Size0 MB10 MB
Age rating4+4+
DeveloperTOON,LLCYasuhiro Nakano

Customer experience

Audio Frequency Analyzer

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews10 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

Displayer

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

Audio Frequency Analyzer

No in-app purchases

None

Displayer

No in-app purchases

Questions

Is Audio Frequency Analyzer free?
Audio Frequency Analyzer costs $9.99, with no in-app purchases.
Is Displayer free?
Displayer costs $0.99, with no in-app purchases.
Which has better reviews, Audio Frequency Analyzer or Displayer?
Audio Frequency Analyzer is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while Displayer averages 3.0 from 1 ratings.
Do Audio Frequency Analyzer or Displayer have ads?
Neither Audio Frequency Analyzer nor Displayer shows ads.
Which is updated more often, Audio Frequency Analyzer or Displayer?
Audio Frequency Analyzer ships an update every 8 months, and Displayer every 29 months. Most recently, Audio Frequency Analyzer was updated on September 9, 2026 and Displayer on September 9, 2026.

Other comparisons