Spire combines award-winning iZotope audio processing with multitrack recording to make importing a beat, layering vocals, collaborating with a producer, and sharing your song easier than ever.


No matter where you are, your vocal booth is only as far away as your pocket. Whether you're a rapper or singer, you can now effortlessly import a beat and record high-quality vocals with nothing more than your smartphone.


When you’re ready to record, there’s no need to waste time manually setting your levels and EQ. In seconds, Spire’s Soundcheck detects your voice or instrument, automatically sets your input level, and sculpts your tone based on the instrument. Spire ensures that your vocal takes always sound great in the mix.


Quickly trim tracks to tighten up your project before you start mixing. Just highlight the parts you want to delete and remove the unwanted audio with the tap of a button.


Mixing on the Spire app is easy and smooth. Drag track icons up and down to adjust volume, and left and right to pan. The visual mixer makes building your soundscape effortless. The Wide/Narrow feature puts iZotope's award-winning Ozone Imager signal processing to work, making the selected track sound big and lush or more focused. When you run Soundcheck before you record, it intelligently selects the best width setting based on what’s detected.


Collaborating on a song with producers, co-writers, or a guest artist has never been this easy. Import a track from your producer and lay down your vocals in seconds. When you’re done, text or email a project link back so they can download your vocal tracks and work with them in a DAW. Send this link to anyone and they can preview the song, open the project in the Spire app to add their own tracks, or download an .MP3 or .WAV mixdown. Spire’s cloud sharing makes working with a producer, adding your rap to a friend’s record, and sharing your next hit fast and intuitive.


If you’ve finished a song with Spire and are ready to share it with your fans, you can publish it directly to SoundCloud or create a video file with your own cover photo to post on social media platforms like Instagram. Share finished song ideas to fans and producers as soon as you want them out in the world.


• IMPORT A TRACK - Upload a beat from a producer and start layering your vocals in seconds for up to 8 tracks total
• INTELLIGENT SOUNDCHECK - In seconds, Soundcheck will set your levels, identify your voice or instrument, and sculpt your tone based on what’s detected to sound great in the mix
• ON-BOARD MICROPHONE - Spire uses your phone’s built-in microphones and applies custom EQ to sound best for singing and rapping
• EDIT IN SECONDS - Easily select parts of tracks and trim unwanted audio
• VISUAL MIXER - Drag track icons up or down to adjust volume and left or right to pan as you build your soundscape
• CLOUD SHARING - Send projects to anyone via the cloud to preview the song, download individual tracks that a producer can use in a DAW, download mixdowns, or open projects in Spire for collaboration
• PUBLISH - Share finished songs directly to your fans on SoundCloud or create a video file with your own cover photo to post on social media platforms like Instagram


Spire Studio is a versatile and intelligent recorder that pairs wirelessly with your mobile device. From importing a beat and toplining vocals to capturing a guitar part and building it into a multitrack song, the key to Spire Studio is that it’s so easy to get high-quality recordings. Start recording with the onboard condenser mic and dual combo inputs along with creative effects, Enhance mastering (powered by iZotope Ozone), and more.

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What’s New

Version 2.35.0

• Miscellaneous bug fixes and improvements

Ratings and Reviews

4.8 out of 5
9.2K Ratings

9.2K Ratings

Steef S ,

Magic demo machine!

As a songwriter, I’ve always wanted a quick and easy way to demo a new song. Most of the time, I’ve just used my iPad to capture it. And if I had the time— I’d fire up Garage Band. If I really wanted to share to a wider audience, I’d work through it on my Protools setup. But now, Spire helps me make a quick and easy demo in my living room that sounds darned close to a studio version. The more I use it, the better I get and the better I sound. It does feel like a magic little box. The mic check dials in the levels, the effects sound nice and clean and above all it takes me minutes— not hours! My biggest wish would be to improve the ability to punch in to fix a guitar clam. It’s close to impossible so I usually try to get a complete and acceptable take before moving on to vocals. Punching in a vocal isn’t hard because there’s usually a dead space that I can come in on. I hope iZotope is still working on this little gem because it would be great to be able to at least add an easy dissolve to smooth a punch in. But hey, I actually couldn’t be happier with this thing.

Developer Response ,

Hey! Thanks a ton for the review! We couldn't be happier to know that Spire is a magic demo machine for your musical experience. Your suggestion about punching in with guitars has been forwarded along to the rest of the team and we are always working on improving the app (and the Spire Studio). Send us an email at if you have any other thoughts or questions -- thanks again!

MutualMachines ,


I do best when recording solo. This app has allowed me to do so with exceptional quality and it’s so user friendly. The things I would love to see in the future would be: basic effects. I would love to be able to add some basic reverb or chorus effects to eliminate the need to take up precious track space with multiple vocals. Maybe like 3 effects? That’s all you really need. Also, I’ve seen in other recording software a “solo” option meaning I can isolate one track to listen to to find that one later I want to delete without having to individually muting a bunch of tracks to find the one I want to delete. I see you’ve put the option to add an icon to tracks to help distinguish what instrument is featured on each track but that’s not enough when it comes to layering vocals etc. soloing a track would be much quicker. Anyways, great app and great quality! Thanks!

Developer Response ,

Hey MutualMachines! Thanks for this review. We appreciate your suggestions for improvements and seeing as this review was made a while back we would love to hear what you think of how the app has progressed since then. Send us an email to with any feedback or questions. Thanks again!

Tymebombproductions ,

Just Missing a few things

Really love this device and what it can do. However there are two main things i would like to see on the app side of things. 1st is the ability to mix tracks down to a single track like you could do on the old 4/8 tracks and then have another 7 tracks to keep adding with. 2nd is some level of post production, I understand the device is aimed at musicians who want to cut thru all the hang ups of traditional recording etc but you guys really have something here that could be much more than that. Im not saying to go crazy but maybe a 4 band eq for starters and then add some basic easy stuff that others have mentioned. Again not looking for pro tools just some tools to tweak and shape the sound a little more. Add it as an upgrade pack in app purchase or whatever i would definitely be interested in something like that keep up the good work and looking forward to some future updates

Developer Response ,

Hey Tymebombproductions! Thanks for this review -- we want to let you know we have seen your suggestions and they have and will continue to influence the direction we go with Spire. You are correct in that a "mobile DAW" isn't exactly what the developers are going for but we strive to make the right choices and try to be careful with any compromises that ever need to be made. Since it's been a while we would like to hear what you think of how Spire has developed and progressed since then - send us an email to if you have any other thoughts or insight. Thanks again!


iZotope, Inc.
149.4 MB

Requires iOS 10.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE (1st generation), iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad (6th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, iPad Air (4th generation), iPad Air (4th generation) Wi‑Fi + Cellular, iPad (8th generation), iPad (8th generation) Wi‑Fi + Cellular, and iPod touch.


English, Japanese

Age Rating
In-App Purchases
  1. Spire Pro Monthly $4.99
  2. Spire Pro Yearly $29.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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