Comparison

Audio RTA vs StageFlow

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

Head to head
About

Audio RTA

Visualize live sound spectrums, identify frequency peaks, and test audio equipment with this practical toolkit. Ideal for musicians and sound technicians, it offers real-time analysis and a frequency generator.

Highlights
  • Real-time RTA/FFT spectrum analysis
  • Approximate dB level meter
  • Frequency generator (20 Hz - 20 kHz)
  • Speaker and channel testing
  • White noise generator
  • Waterfall/spectrogram (Pro)
  • Third-octave bands (Pro)
Features
Read full description

See the live sound spectrum, find frequency peaks and test your speakers with a practical audio toolkit on your phone. For musicians, sound technicians and installers working with PA systems, studios, instruments and car audio. Use the microphone spectrum as a visual aid when checking sound; the app does not automatically equalize your system. Free basic tools: • Real-time microphone RTA/FFT spectrum • Approximate dB level meter • Frequency generator from 20 Hz to 20 kHz • Subwoofer and stereo channel tests • White noise for general testing Audio Tools Pro is a one-time purchase for lifetime access to advanced tools: waterfall/spectrogram, third-octave bands, manual dB offset, PNG/CSV exports, pink noise and advanced waveforms and sweeps. Access stays linked to your store account. Measurements depend on your device microphone and hardware. Manual dB offset aligns readings to a reference meter; it does not provide certified calibration. Use low volume to protect hearing and equipment. The app does not replace a certified sound-level meter or measure calibrated loudspeaker frequency response. Audio analysis runs on your device; purchases require a connection. The store shows the current Pro price.

About

StageFlow

Features
Read full description

StageFlow je nástroj pre hudobníkov, kapely a chválové tímy. Zjednocuje playlisty, texty, akordy a live vedenie chvál či koncertu do jednej prehľadnej aplikácie – aby ste sa na pódiu sústredili na hudbu, nie na papiere a chaos. Aplikácia je postavená pre tímovú spoluprácu: každá kapela ma usporiadane svoje piesne, playlisty a členov. Jeden účet, viac kapiel – prepínate sa jedným ťuknutím. PIESNE A AKORDY • Vlastné piesne kapely aj spoločná databáza – akordy presne nad textom • Transpozícia do ľubovoľnej tóniny jedným ťuknutím, bez prepisovania • Nashville systém (číslované akordy) • Textový aj vizuálny tvorca piesní • Osobné poznámky k piesni aj k jednotlivým riadkom – vidíte len vy • Nastaviteľná veľkosť textu, svetlý aj tmavý režim PLAYLISTY A KNIŽNICA • Playlisty rozdelené do sekcií s vlastnými názvami • Šablóny playlistov • Vlastná knižnica s priečinkami • Rýchle vyhľadávanie v názve, texte aj autorovi LIVE SESSION • Vedúci ovláda playlist v reálnom čase – celá kapela vidí tú istú pieseň a pasáž • Automatické prepnutie a odscrollovanie na aktuálnu sekciu u všetkých • Zdieľanie textov na projektor pre publikum cez odkaz NÁSTROJE PRE HUDOBNÍKOV • Metronóm s presným časovaním a rôznymi zvukmi (klik, drevo, hi-hat, bicie a ďalšie) • Podpora MIDI nožného ovládača TÍM A ROLY • Role admin / vedúci / člen s rôznymi právami • Pozývanie členov a správa kapely • Bezpečné oddelenie dát – každý vidí len obsah svojej kapely Aplikácia funguje v slovenčine, češtine aj angličtine.

Screenshots

Audio RTA4 screens
StageFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: StageFlow at none against Audio RTA's 1. On price, update cadence, ads 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

Both are free to download. Audio RTA sells 1 one-off in-app purchase. StageFlow asks for nothing beyond the download.

UpkeepUpdate frequency

Audio RTA ships an update weekly, StageFlow every 2 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 8 level
Audio RTA versus StageFlow: the parameters behind the verdict, then further details
ParameterAudio RTAStageFlow
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size54 MB55 MB
Age rating4+4+
DeveloperMateus Polonini CardosoWAME s.r.o.

In-app purchases

1 purchases

Audio RTA

One-time1
  • Audio Analyzer RTA Pro$10.99
None

StageFlow

No in-app purchases

Questions

Is Audio RTA free?
Audio RTA is free to download, with in-app purchases available.
Is StageFlow free?
StageFlow is free to download, with no in-app purchases.
Do Audio RTA or StageFlow have ads?
Neither Audio RTA nor StageFlow shows ads.
Which is updated more often, Audio RTA or StageFlow?
Audio RTA ships an update weekly, and StageFlow every 2 weeks. Most recently, Audio RTA was updated on November 5, 2026 and StageFlow on November 10, 2026.

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