# SUBscription Synth — AUv3 & Standalone Synthesiser > Monophonic sub-synth that converts text into unique waveshapes. (iPhone/iPad app by Caelum Audio.) - Source: https://appshunter.io/ios/app/subscription-synth/id6450652011 (this page in markdown: same URL + `.md`) - Developer: [Caelum Audio](https://appshunter.io/developer/1463219587) - Category: Music - Price: $2.99 - Rating: 4.60/5 from 42 App Store ratings · 23 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 8 MB - Released: 2023-06-30 - Data updated: 2026-08-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/subscription-synth/id6450652011/reviews.md ## What is SUBscription Synth? To celebrate international joke day 2023, we decided to take a big step with our first synthesizer plugin; SUBscription. While based on a tongue-in-cheek pun about the current state and direction of the music tech industry, we actually ended up with a surprisingly excellent plugin that takes user-generated phrases (subscription codes) and converts them into unique waveshapes in a monophonic sub-synth. - Create powerful, characterful bass sounds - Unique and exceptionally high IQ text synthesis technique ^TM - Reasonable subscription models - Unequivocally superior, requires no review. SUBscription Upon entering a subscription code into our brand new text-to-synthesis engine, you are entering a world of sonic enrichment and fame, but you may have to make a deal with the devil. Text Synthesis Create characterful wave shapes using our experimental new text-to-synthesis technique. We have prepared every possible character combination (subscription code) because you’re weak and predictable. Drive & Dirt Boost the ever loving **** out of the synth with some crispy drive. Use the Dirt knob’s Rate modulation to thicken and filth up your tracks with noisy textures. Filter Carve your frequencies out with the 12dB/oct low-pass ladder filter. Much like the filter, we too will be filtering out any bug reports, requests or errors - our time is far more important. Modulation Add movement to your sounds with 2 envelopes, 2 LFO’s & 4 expression controls which are assignable to nearly every parameter. Unlike the fluid nature of modulation, we stand firm with our decisions - you just wouldn’t get it. Product Aftercare If you need support via email you’ll have to deal with harshly worded, incredibly frustrated developers and please note that all critical feedback of any nature will be met with serious scolding. SUBscription is designed as an AUv3 plugin, meaning it works within iOS and iPadOS hosts such as Logic Pro, GarageBand, Cubasis 3, AUM and Beatmaker 3. SUBscription also works as a standalone instrument. ## Key features - Text-to-synthesis engine - Monophonic sub-synth - Drive and dirt effects - 12dB/oct low-pass filter - 2 envelopes, 2 LFOs, 4 expression controls - AUv3 plugin and standalone operation ## Recent user reviews (10 of 23) All indexed reviews: https://appshunter.io/ios/app/subscription-synth/id6450652011/reviews.md ### 5/5 — Subscription + Dustbin *2025-07-03, version 1.0.2* Are my absolute go-to plugins for autistic reasons- but maybe you will dig it too! subscription is so fun, type in a word or number or word and number or don’t and hit enter and bam! Well, did it sound cool? Try it again! bam! Woah, there she is- instant banger! ~ this was a real life re-enactment of my exp w/Subscription. No subscription was required for my ongoing enjoyment and parasocial loyalty to Calleum. oh! Did I fail to mention that you can enter any "html colorname" and the app will change to that color! Example: LemonChiffon / RebeccaPurple Just look up html colornames and paste it into the text box! ### 1/5 — Save it for later *2024-11-02, version 1.0.2* If you can refund my money I will kindly give it a 5 star review. Until then, I won’t. First and last time I go off popular reviews! ### 5/5 — Seriously good synth *2024-07-04, version 1.0.2* I know it’s a joke, but the sounds are legit! Love the randomization dice. Interface is top notch, good visual feedback, a delight to program. I already have most of Caelum Audio apps, all excellent! FUN FUN FUN! ### 5/5 — Subscription + Dustbin *2024-06-30* Are my absolute go-to plugins for autistic reasons- but maybe you will dig it too! subscription is so fun, type in a word or number or word and number or don’t and hit enter and bam! Well, did it sound cool? Try it again! bam! Woah, there she is- instant banger! ~ this was a real life re-enactment of my exp w/Subscription. No subscription was required for my ongoing enjoyment and parasocial loyalty to Calleum. ### 5/5 — Thank you for the generosity! *2023-11-08, version 1.0.2* Just like other apps by the developer, this one is also fantastic. So much fun! ### 5/5 — Awesome *2023-11-01, version 1.0.2* Get it now ### 5/5 — Crafty *2023-09-23, version 1.0.2* It’s just like being given access to the old BBC radiophonics dept. You know Dr Who and all that. Great sound and it certainly forces me compose differently, which is actually just what I need at the moment. Thanks guys. ### 5/5 — No joke, but good joke *2023-09-20, version 1.0.2* Amazing synth, fun to program ### 5/5 — Love it! *2023-09-10, version 1.0.2* This is one of my most used synths. I’m obsessed! ### 4/5 — Grungy little beast *2023-09-01, version 1.0.2* This isn’t a joke! Free synth. Not only free but good in fact preferable to many paid synths I own. Used this quite a bit since it launched and enjoy it every time I do. It’s definitely a keeper. Thankyou to the developers much appreciated ## Frequently asked questions about SUBscription Synth ### What does SUBscription Synth do? SUBscription Synth is a monophonic synthesizer that converts user-generated text, like subscription codes, into unique waveshapes. It allows you to create powerful and characterful bass sounds using its experimental text-to-synthesis engine. ### What are the key features of SUBscription Synth? Key features include a unique text-to-synthesis engine, drive and dirt effects for adding grit, a 12dB/oct low-pass ladder filter, and extensive modulation capabilities with 2 envelopes, 2 LFOs, and 4 assignable expression controls. ### How much does SUBscription Synth cost? The application is a paid product. The description mentions 'reasonable subscription models' in a tongue-in-cheek manner, but the app itself is a one-time purchase. ### What devices and hosts is SUBscription Synth compatible with? SUBscription Synth is designed as an AUv3 plugin, making it compatible with iOS and iPadOS hosts such as Logic Pro, GarageBand, Cubasis 3, AUM, and Beatmaker 3. It also functions as a standalone instrument. ### What are some common use cases for SUBscription Synth? This app is ideal for creating distinctive basslines, adding unique textures to electronic music, and experimenting with novel sound design techniques. Its text-to-synthesis feature offers a fresh approach to generating sound. ## Version history (last 3 releases) ### 1.0.2 — 2023-07-04 - bug fixes ### 1.0.1 — 2023-06-30 - Bug fixes ### 1.0 — 2023-06-30 No release notes. ## Apps similar to SUBscription Synth | App | Rating | Price | Category | | --- | --- | --- | --- | | [Dagger synth](https://appshunter.io/ios/app/dagger-synth/id6451140338) | 4.9 (43) | $9.99 | Music | | [Riffler Flow](https://appshunter.io/ios/app/riffler-flow/id6467568526) | 4.0 (24) | $14.99 | Music | | [Beat Maker - loops & drum pad](https://appshunter.io/ios/app/beat-maker-loops-and-drum-pad/id979117778) | 4.4 (28) | $3.99 | Music | | [FAC Drumkit](https://appshunter.io/ios/app/fac-drumkit/id1552568814) | 4.7 (83) | $17.99 | Music | | [Helium AUv3 MIDI Sequencer](https://appshunter.io/ios/app/helium-auv3-midi-sequencer/id1563152523) | 4.4 (55) | $7.99 | Music | | [FAC Punchlab](https://appshunter.io/ios/app/fac-punchlab/id6472346517) | 5.0 (20) | $14.99 | Music | ## More apps by Caelum Audio - [One Loop](https://appshunter.io/ios/app/one-loop/id1463219588) - [Tape Cassette](https://appshunter.io/ios/app/tape-cassette/id1488648013) - [Tape Cassette 2](https://appshunter.io/ios/app/tape-cassette-2/id1507434173) - [Tape Pro](https://appshunter.io/ios/app/tape-pro/id1527986817) - [Schlap AUv3](https://appshunter.io/ios/app/schlap-auv3/id1544325236) - [Smoov AUv3](https://appshunter.io/ios/app/smoov-auv3/id1545474672) All apps by Caelum Audio: https://appshunter.io/developer/1463219587 --- *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 2026-08-01.*