RP-1 and RF-1 giveaway results – 3 winners of AU-friendly iOS delay and reverb apps

Download from iTunes App StoreI reviewed the excellent RP-1  and RF-1 apps from Numercial Audio developer Kai Aras here on the Music App Blog when when both first launched. They provides compact, but well-featured delay and reverb effects respectively and both are capable of conventional and more creative treatments.

Both RF-1 and RP-1 are universal apps, requires iOS9.0 or later, are approximately 30MB downloads and are individually priced at just UK£5.99/US$5.99. As well as launching with Audiobus and IAA support, both apps also included both Ableton Link and Audio Units (AU) support. The latter means that you can, of course, run multiple instances of the app within a suitable AU host such as MultitrackStudioCubasis, Modstep or AUM.

The UI of both apps works brilliantly for the AU format…. as shown here within AUM.

Anyway, developer Kai has kept the pace of development going and, as I posted a week or so ago,  both apps received updates on the App Store recently. On the back of the updates, Kai provided me with 3 ‘bundles’ of both apps to give away here on the Music App Blog. The draw closed yesterday and the winning names were pulled out of the hat this morning….. and the winners are:-

Jason Cowling

John Baker

Grant Horsnell

The winners have now been sent an email with the details of how to get hold of their prizes. Incidentally, if you do appear as a winner in one of these giveaways and you don’t seem to have seen an email from me with the promo code details, then do make sure you check in your junk, trash or spam folders just in case your email system has ‘filed’ the message there :-)

Oh, and if you want to make sure you are entered for all the promo code giveaways that I run through the Music App Blog, then get yourself on the email newsletter list – and pick up your copy of our free ’25 apps’ guide :-)

There is little not to like about either RP-1 or RF-1 and it’s great to see (a) a developer who is obviously so active and (b) keen to embrace the AU format. And, at just UK£5.99/US$5.99, either app can be seen as a pocket money purchase. No fuss to use, they sound great and are very affordable. Read the full RF-1 and RP-1 reviews here….   but, otherwise, both come highly recommended so hit the download buttons to find out more via the App Store.


Download from iTunes App Store

RP-1 delay

Download from iTunes App Store


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    1. Thanks so much! Both for the Numerical Audio Apps & your always great site!
      Jason @Aud-iOS

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