Comparison

SynthStamp vs GlassChoir

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SynthStamp

Explore vintage synthesizers with fully modeled engines and familiar interfaces. Patch, save, and share your creations across devices. Features real-time effects processing and models based on iconic hardware.

Highlights
  • Fully modeled vintage synth engines
  • Patchable semi-modular synthesizer
  • Circuit-bendable sampling keyboard
  • Real-time effects processing
  • Audio Unit (AUv3) plugin support
  • Cross-device preset sharing
Features
Read full description

The Vintage Synth Playground You Can Take Anywhere SynthStamp is a celebration of the history of electronic music, featuring fully modeled engines and familiar user interfaces behind some of the most desirable synthesizers. Tap and drag to patch, save your patch as a preset, and export presets to share across all of your devices including Mac, iPhone, and iPad. Yes that's right, iPhone. Take your sound anywhere. --- Stereo audio input for realtime effects processing Model based on the ARP 2600--finally on mobile Circuit-bendable model based on the SK-1--we haven't seen one either --- Choose Your Adventure 5001 Analog Synthesizer: dynamically patchable, semi-modular, monophonic analog synthesizer from the late '70s, with stereo preamplifier. A real idea factory, from classic analog synth leads to creative sound design, this synth is a tool for exploration and experimentation. You'll truly fall in love with the snappy, milky quality of the voltage-controlled filter. B500 Sampling Keyboard: circuit-bendable ROMpler from the mid '80s, with 4-voice polyphony, multi-channel note memory, and stereo sampler. Bend, sample, and compose melodies with this portable gem. Combine with continuous live sampling to create sounds that simply shouldn't exist. Flexibly Configurable, Infinitely Creative SynthStamp can be run as a standalone application or as an Audio Unit (AUv3) plugin inside supported DAWs, either as an Instrument with mono side chain input, or as a Music Effect on stereo/mono audio tracks for realtime processing, with full MIDI support. Presets can be imported and exported for easy sharing across devices, while on the same device, presets are stored in a common location across standalone and Audio Unit installations for shared access. Privacy Policy: https://themusicologygroup.com/privacy/

About

GlassChoir

Features
Read full description

Glass Choir turns a sung phrase or short vocal snippet into a shimmering, playable infinite song. Feed it a voice sample, generate a vibe, and perform inside layered harmonies, bass bloom, octave lift, ghost highs, freeze loops, and cinematic space with a small glassy control surface designed for fast musical results.

Screenshots

SynthStamp4 screens
GlassChoir4 screens

Verdict

The call

The clearest difference is update cadence: GlassChoir at daily against SynthStamp's every 5 days. GlassChoir also leads on price ($0.99 vs $4.99). SynthStamp's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.0). On ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

SynthStamp costs $4.99 and GlassChoir $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SynthStamp ships an update every 5 days, GlassChoir daily. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
SynthStamp versus GlassChoir: the parameters behind the verdict, then further details
ParameterSynthStampGlassChoir
Price$4.99$0.99 — better
Rating4.4 (12 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 5 daysDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size39 MB2 MB
Age rating4+4+
DeveloperThe Musicology Group, Inc.Austen Allred

In-app purchases

None

SynthStamp

No in-app purchases

None

GlassChoir

No in-app purchases

Questions

Is SynthStamp free?
SynthStamp costs $4.99, with no in-app purchases.
Is GlassChoir free?
GlassChoir costs $0.99, with no in-app purchases.
Do SynthStamp or GlassChoir have ads?
Neither SynthStamp nor GlassChoir shows ads.
Which is updated more often, SynthStamp or GlassChoir?
SynthStamp ships an update every 5 days, and GlassChoir daily. Most recently, SynthStamp was updated on September 18, 2026 and GlassChoir on September 21, 2026.

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