RTA vs Stage Plot Maker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RTA
Analyze audio frequencies, test speakers, and tune rooms with this professional-grade acoustical analysis tool. It offers octave and 1/3 octave modes, peak hold, and averaging, with automatic microphone compensation for accurate results.
- Real-time acoustical analysis
- Octave and 1/3 Octave modes
- Peak Hold and Average modes
- Automatic microphone compensation
- Save, recall, and export graphs
- Interactive touch GUI
- Noise curve overlays
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A Real Time Analyzer for the iPhone, iPad and iPod Touch. Test your speakers, tune your room, do acoustical analysis work or just have a better understanding of audio frequencies. RTA is a professional-grade acoustical analysis tool. All filters meet or exceed ANSI and IEC Class 1 specifications. Includes Octave and 1/3 Octave modes, with selectable decay times, as well as Peak Hold and true linear Average mode. *** iOS Microphones We have analyzied every iOS device, including all of the iPads, all iPhones, and iPod touches, and have created microphone compensation files that are applied automatically. You can trust the results you are getting, often within just a few dB of a far more expensive analyzer. Calibration is updated regularly, automatically, from our cloud-based calibration database. Upgrade to our iTestMic or iAudioInterface2 to bring your system up to full professional specs. *** Save and Recall Graphs You can save and recall graphs, marked with the GPS location, date & time, and your comment, as well as store the image to your photo roll. Export the data as an XLS formatted file to your computer for inclusion in reports or further analysis. *** Max and Min Bars You can also turn on resettable Max/Min bars (see image #4) to capture peaks. Double-tap to reset the bars. *** Specifications and Devices The internal iPhone mic has a noise floor near 30 dB, and if your are running iOS 6, clips around 120 dB. *** Touch GUI Fully interactive touch GUI features includes scroll up/down, pinch to zoom or compress the vertical dB scale, or swipe horizontally to get a cursor that reads out the exact dB level and frequency across the screen. To make the cursor disappear, swipe it off the graph to the left. The landscape-mode display flips 180 degrees so that you can face the internal mic in either direction. *** Overlay Curves Also included are optional noise curve overlays, in NCB, RC, PNC, NC, X-Curve and NR mode. See picture #2 for an example. Use this feature to get a quick reading on the noise levels in a room. Also includes the cinema large-room X-curve overlay. *** Calibration RTA can be fully calibrated, whether you are using it with the internal iOS microphone, or one of our professional test & measurement mic solutions. And, if you are using iTestMic, the mic calibration is transmitted directly to the app, so you are always calibrated. *** RTA or FFT? If you are wondering if you should download this app or our FFT app, check out our website, we have a page devoted to this topic. See our other acoustics and audio apps, including AudioTools.
Stage Plot Maker
Create clear, readable stage plots to communicate your band's technical needs to sound engineers. Easily build and manage a collection of plots for various gigs, then print or email them directly from your device. The app uses symbols for instruments and their inputs for a streamlined, efficient display.
- Build clear stage plots
- Communicate technical requirements
- Print or email plots
- Include diagrams and input lists
- Add performer info and notes
- Use symbols for instruments
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Stage Plot Maker helps you build clear, readable stage plots to communicate your band's technical requirements to a sound engineer. You can build a collection of stage plots for different kinds of gigs, then print or email them directly from your mobile device. Running the app on a tablet is recommended for building stage plots. Once you build a stage plot, you can copy it to the phone app for quick access on the go. Stage plots can include a diagram to show the placement of elements on stage; numbered input and output lists; a list of other required items like chairs and music stands; the name and photo of each performer; notes for the sound engineer; and your contact info. Note that this app doesn't use pictures for small instruments like guitars, trumpets, etc. Instead, it uses symbols for the inputs that those instruments go into, like mics or DI boxes. You can label those inputs to show what instrument they are used for. This provides a streamlined display that shows sound engineers just what they need to set up the stage for you. The app does include symbols for large instruments like piano and drums that are typically placed on stage first with the inputs positioned around them. Please see the screen shots and demo video for examples. *** If you have a problem or a suggestion, please contact me before writing a bad review. I respond promptly to all emails and posts in my support forum. ***
Screenshots
Verdict
The clearest difference is review sentiment: RTA at 61% against Stage Plot Maker's 10%. RTA also leads on rating (3.9 vs 2.0) and ratings volume (26 vs 8). Stage Plot Maker's advantage is in-app purchases (none vs 2) and price ($3.99 vs $4.99). On update cadence, ads, chart position 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
RTA costs $4.99 and Stage Plot Maker $3.99 up front. RTA sells 2 one-off in-app purchases. Stage Plot Maker asks for nothing beyond the download.
RTA holds the better App Store score, 3.9 against 2.0. Both are backed by a comparable volume of ratings — 26 and 8 respectively. Written reviews point the same way: 61% of RTA's written reviews are positive against 10% of Stage Plot Maker's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.
| Parameter | RTA | Stage Plot Maker |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 3.9 (26 ratings) — better | 2.0 (8 ratings) |
| Positive reviews | 60.7% of reviews — better | 9.9% of reviews |
| Number of ratings | 26 — better | 8 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #101 — better | #170 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Smith | Arlo Leach |
Customer experience
RTA
Stage Plot Maker
User reviews
RTA
From 26 App Store ratingsWhat we love
- 👍 Easy to use
- 👍 Good for quick analysis
- 👍 Accurate for price
- 👍 Useful for tuning
- 👍 Professional tool
Room to improve
- 🐛 Crashes frequently
- 🐛 Freezes often
- 🐛 Incompatible with iOS updates
- 🐛 Screen display issues
- 🐛 Battery drain
Stage Plot Maker
From 8 App Store ratingsWhat we love
- 👍 Easy to use (few users)
- 👍 Good for basic setups (few users)
- 👍 Helpful for communication (few users)
Room to improve
- 👎 Missing essential instruments
- 👎 Limited instrument options
- 👎 Difficult to use
- 👎 Poor user interface
- 👎 Not intuitive
Bugs and requests
RTA
Reported bugs
18 issues- App crashes after iOS updates (iOS 13, 15, 16, 17, 18)
- App freezes or crashes on startup
- App only displays half the screen
- App does not save analysis readings to photo roll
- App stops working on older iPads after updates
Show 13 moreShow fewer
- Accessory found/removed loop with iTestMic 2
- App continues to run in background, draining battery
- Calibration not supported for specific iPad models
- App not installing after purchase/update
- App not opening on iPhone 4 after update
- dB/input level is useless after update
- Screen not expanding after updates
- App not compatible with iOS 7
- App crashes when saving screen
- App not working with iMM-6 microphone
- App overcompensates for low frequencies
- App crashes on 3G S after update
- Low frequency response cut due to voice recognition
Requested features
8 requests- Add German language support
- Add NC and NR curves
- Make background mode optional
- Improve compatibility with newer iOS versions
- Add option to overlay readings
Show 3 moreShow fewer
- Add zoom functionality for frequencies
- Improve calibration for external mics
- Add pink noise output
Stage Plot Maker
Reported bugs
21 issues- App crashes frequently
- App closes out on itself
- Grey boxes stay on
- Cannot open or edit plans on other devices
- Cannot export or email plots
Show 16 moreShow fewer
- Drafts erased when device goes to standby
- Settings page gets stuck
- Rotate function doesn't work
- Input list and 'other items' list clutter plot
- Cannot edit input list without adding to plot
- Cannot zoom in
- Cannot resize items
- Cannot resize stage
- Editing screen obscures view
- Items too big, stage too small
- No guitar amps or monitors, end up as drums
- Cannot label properly
- Text for input list too small
- Colliding lists and plot
- No DJ deck listed
- No guitar pedalboard position option
Requested features
30 requests- Add guitars, basses, keyboards, amps
- Add mic stands
- Add horns, wind instruments
- Add string instruments
- Add DJ deck option
Show 25 moreShow fewer
- Add guitar pedalboard option
- Improve instrument selection
- Allow resizing of items
- Allow resizing of stage
- Enable zooming
- Add free-form label creation
- Add power box indicators
- Add graphic for band members
- Add full drum kit graphic
- Improve input/output list display
- Allow editing of input list
- Add more icons for PA, recording, lighting
- Provide a grid for alignment
- Fix crashing issues
- Improve export/email functionality
- Add tutorial
- Add dark mode
- Add adjustable stage size
- Add editable instruments with custom names
- Improve touchscreen controls
- Allow importing custom icons
- Add photo import without crashing
- Fix standby mode erasing drafts
- Add sort function for objects
- Make it free or cheaper
In-app purchases
RTA
- STC -- Transmission Loss$9.99
- Reference Curve Files$9.99
Stage Plot Maker
No in-app purchases
Questions
Is RTA free?
Is Stage Plot Maker free?
Which has better reviews, RTA or Stage Plot Maker?
Do RTA or Stage Plot Maker have ads?
Which is updated more often, RTA or Stage Plot Maker?
Which is more popular, RTA or Stage Plot Maker?
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