# HouseCurve — Simple audio system tuning

> Audio system tuning multi-tool for room correction, equalization, and more. (iPhone/iPad app by Greg Wilding.)

- Source: https://appshunter.io/ios/app/housecurve/id1470695018 (this page in markdown: same URL + `.md`)
- Developer: [Greg Wilding](https://appshunter.io/developer/1470695017)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Rating: 4.70/5 from 257 App Store ratings · 49 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 9 MB
- Languages: American English
- Released: 2019-07-13
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/housecurve/id1470695018/reviews.md

## What is HouseCurve?

HouseCurve is a multi-tool for audio systems.  Use it for room correction, adjusting equalizers, setting subwoofer phase, choosing crossovers and more.

Features:

* Sine sweep and real time pink noise measurements
* Sweep measurements can be averaged as they are collected
* Alternatively, use real time tool to collect moving mic measurements (MMM)
* Compare measurements to a selected target curve
* Create and edit target curves
* Generate room correction filters (PEQ or FIR)
* Filters compatible with a variety of systems including Roon, Volumio, CamillaDSP, EqualizerAPO, miniDSP and Crestron DM NAX
* Display magnitude, phase and group delay
* Use with built-in or external microphones
* Connect with AirPlay, Bluetooth, headphone jack (analog) or use external stimulus

HouseCurve measures in-room frequency response by listening to your audio system play a sine sweep.  Measurements are displayed on top of a target curve, making it easy to see where adjustment is needed.  Multiple measurements can be averaged to fully capture how the system sounds in the listening area.  With small changes and repeat measurements, you can manually tune your system to the target curve.  If your audio system has a parametric equalizer or convolution engine, HouseCurve can automatically generate filter settings to match the target curve.

HouseCurve can help with home and car audio system tuning, from system equalization and room correction to subwoofer time alignment and speaker placement.  Visit housecurve.com for more information on how HouseCurve works and how to use it.

HouseCurve will produce acceptable results with the built in iPhone/iPad microphone. Using calibrated external microphones will provide higher accuracy.

The free version of HouseCurve can measure your audio system and display a magnitude plot (aka "frequency response").  Additional features, such as room correction filter generation, advanced measurement tools and target curve editing can be obtained via in-app purchases.

## Key features

- Sine sweep and pink noise measurements
- Real-time moving mic measurements
- Target curve comparison and creation
- Room correction filter generation (PEQ/FIR)
- Magnitude, phase, and group delay display
- Compatibility with various audio systems

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Tuning Bundle Lifetime | $60.00 | one-time |
| Tuning Bundle One Year | $20.00 | one-time |


## What do users think of HouseCurve?

Overall sentiment: positive

**Pros**

- 👍 Easy to use and setup
- 💰 Great value for money
- 🔊 Significantly improves sound quality
- 📱 Utilizes iPhone microphone effectively
- 🔌 Compatible with various EQ software (e.g., Equalizer APO, Roon)
- 💡 Simple yet effective analysis
- 🚀 Fast and efficient operation
- ✅ Works well for manual EQ
- 🎯 Fixes bass dips and room issues
- 📚 Excellent documentation and tutorials
- 🎧 Supports external microphones (e.g., UMIK-1, Dayton OmniMic)
- ✨ Transforms listening experience
- 📈 Helpful for understanding room acoustics
- 🔧 Useful for calibrating subwoofers and speakers

**Cons**

- 🐛 Unreliable connection issues
- 🐛 Frequent crashes or bugs
- 🐛 App asks to upgrade after purchase
- 🐛 Bluetooth connectivity issues
- 🐛 Sweep tone not detected
- 🐛 EQ not changing graph
- 🐛 Airplay connection unreliable
- 🐛 iPad performance differs from iPhone
- 🐛 Interface can be cumbersome (free version)
- 🐛 Static EQ frequencies limit DSP application
- 🐛 No Q value for EQ frequencies
- 🐛 Need to reset phone frequently
- 🐛 Volume too high can damage speakers
- 🐛 Free version has limitations

**Commonly reported bugs**

- Will not connect to iPhone
- Won't connect and play after upgrades
- App keeps asking to upgrade after payment
- Cannot connect to Airplay music systems
- Bluetooth doesn't work well
- Resets phone every 2nd or 3rd attempt
- Unreliable sweeps (one out of two to three works)
- External sweep signal not picked up
- Cannot start over from scratch without uninstalling
- Cannot detect signal for test tone
- EQ does not change graph
- Airplay connection to Bluesound Node 2i not always made
- Plays music from Apple Music instead of sweep tone
- iPad gives different responses than iPhone

**Most requested features**

- True support for headphones
- Download measured plots for offline analysis
- Ability to export a zip of filters at once
- Option to normalize filters
- Clarification on Q value for EQ frequencies
- Ability to see Q number for EQ frequencies
- White background graph option for printing
- More reliable Airplay connection
- Fix for starting over from scratch without uninstalling
- Warning about high volume levels

## Recent user reviews (10 of 49)

All indexed reviews: https://appshunter.io/ios/app/housecurve/id1470695018/reviews.md

### 4/5 — Bluetooth delay

*2026-06-03, version 6.0.2*

Needs a longer test chirp to avoid issues with bluetooth delay

### 5/5 — Easier Than REW, Less Expensive Than Dirac

*2026-02-26, version 6.0.2*

I’m really impressed by this app, it just makes everything so easy, just like it should be. Setting up a mic? Easy. Running a sweep? Easy. Generating a response curve? Easy. Copying that curve into miniDSP PEQ settings? Easy. Getting stoked on how your system sounds after setting up your new PEQ? EASY.

### 5/5 — Good job!

*2026-01-15, version 6.0.2*

This is a great, easy to use tool. Just invest an hour reding the directions and you’ll be good to go. It made my expensive stereo sound like I thought it should and could sound. Sound went from good to amazing. It also helped me fix a large bass dip 14 db at 125 hz. Moved my speakers closer to front wall to get it to 8 db and was able to correct it to 1.5db dip. Nice

### 5/5 — Good app that I’ve seen that uses the iPhones microphone

*2026-01-11, version 6.0.2*

A microphone is more than good enough for simple, manual EQ, but most apps don’t use it or don’t compensate, this app does both and for a decent (at least when I purchased it). While not exactly necessary, I do wish that they added true support for headphones.

### 1/5 — Will not work

*2025-11-28, version 6.0*

Will not connect to iPhone.

### 3/5 — First time

*2025-11-23, version 6.0*

Worked until I purchased the 2 upgrades now it won’t connect and play

### 5/5 — User friendly

*2025-09-19, version 5.3.1*

Tried it with a UMIK-1 and was able to add the calibration files. Bought the add-on and I’m really happy with the average and save options.

### 5/5 — Easy and compatible with Equalizer APO

*2025-06-09, version 5.2.3*

Simple and does what it does well. Exported to the PEQ format and dropped right into my Equalizer APO without a hitch. 

I personally enjoyed the “cuts only” version much more, but YMMV!

### 1/5 — Just doesn’t work

*2025-05-19, version 5.2.1*

Seems like I’ve paid three times and the app keeps asking me to upgrade.

### 1/5 — Does not work

*2025-05-03, version 5.2.1*

I really like the concept behind this app. Unfortunately it is unable to connect to any of my airplay music systems so no bueno

## Frequently asked questions about HouseCurve

### What does HouseCurve do?

HouseCurve is a multi-tool designed for tuning audio systems. It allows users to perform room correction, adjust equalizers, set subwoofer phase, and choose crossovers. The app measures in-room frequency response by analyzing sine sweeps and can generate filter settings for various audio systems.

### What are the key features of HouseCurve?

Key features include sine sweep and real-time pink noise measurements, moving mic measurements, comparison to target curves, room correction filter generation (PEQ or FIR), and display of magnitude, phase, and group delay. It is compatible with systems like Roon, Volumio, and EqualizerAPO.

### How much does HouseCurve cost?

HouseCurve offers a free version that allows users to measure their audio system and view a magnitude plot. Advanced features such as room correction filter generation, advanced measurement tools, and target curve editing are available through in-app purchases.

### What devices is HouseCurve compatible with?

HouseCurve is available for iOS devices like iPhones and iPads. It can produce acceptable results with the built-in microphone, but using calibrated external microphones will provide higher accuracy. It can connect via AirPlay, Bluetooth, or the headphone jack.

### How can I use HouseCurve for audio system tuning?

HouseCurve can be used for home and car audio system tuning, including system equalization, room correction, and subwoofer time alignment. By measuring the in-room frequency response and comparing it to a target curve, users can manually tune their system or use the app to generate filter settings.

## Version history (last 5 releases)

### 6.0.2 — 2025-12-06

* Fixed issue where Sweep measurements were low quality when using older test signal files.  If you are using a test signal from v6.0 - 6.0.1, please export a fresh file to avoid low quality measurements.
* Fixed issue where Sweep measure button did not update when enabling external stimulus.

### 6.0.1 — 2025-11-30

* Fixed issue where re-sampled FIR filters had slightly different magnitude responses (thanks to Kenneth for reporting this :-)

### 6.0 — 2025-11-20

HouseCurve 6.0 adds a real time measurement tool.  Use it to live tune graphic equalizers and subwoofers or capture moving mic measurements (MMM) for use with the Equalize tool.

Additional changes:
* Improved menu system makes better use of screen space on iPads.
* Measurement data files are now accessible via the app document folder.  Users can copy measurement files to other devices or back them up.
* Measurement management moved to a separate tool.  This lays the ground work for a nicer view / compare features in the future.
* The Tuning Bundle can now be purchased for one year (non-renewing subscription) or a lifetime unlock.  Existing purchases are all considered lifetime unlocks - thank you for your support!

### 5.3.1 — 2025-09-17

* This release adds some anonymous metric collection to help improve features and debug issues.  Thanks to all the users that have provided suggestions and feedback over the years, I really appreciate it :-)

### 5.3.0 — 2025-07-29

* Equalize Tool can now export room correction filters to Crestron DM NAX audio systems

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## More apps by Greg Wilding

- [SixtyForty](https://appshunter.io/ios/app/sixtyforty/id1588963302)

All apps by Greg Wilding: https://appshunter.io/developer/1470695017

## Related topics

[audio tuning](https://appshunter.io/ios/topics/audio-tuning) · [room correction](https://appshunter.io/ios/topics/room-correction) · [surround speaker check](https://appshunter.io/ios/topics/surround-speaker-check) · [wiim](https://appshunter.io/ios/topics/wiim) · [dirac](https://appshunter.io/ios/topics/dirac) · [sound test for dolby atmos](https://appshunter.io/ios/topics/sound-test-for-dolby-atmos) · [room acoustics measurement](https://appshunter.io/ios/topics/room-acoustics-measurement) · [eq room](https://appshunter.io/ios/topics/eq-room) · [car audio tuning](https://appshunter.io/ios/topics/car-audio-tuning) · [speaker box design](https://appshunter.io/ios/topics/speaker-box-design) · [speaker equalizer](https://appshunter.io/ios/topics/speaker-equalizer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*