Comparison

Osculatrix vs Speech Jammer

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

Head to head
About

Osculatrix

This audio effect plugin offers modulated filters, delays, and saturation for creative sound design. It can transform audio from subtle coloration to complete destruction. Use it within your favorite music production apps.

Highlights
  • Modulated filters
  • Delay effects
  • Saturation
  • AUv3 plugin
  • Subtle coloration to destruction
Features
Read full description

Osculatrix is a tremolo with ideas above its station. With modulated filters, delays, a bit of saturation. Like its predecessors, it is cryptic and opinionated, and it goes from subtle colouration to total destruction at the twist of a knob. Osculatrix is an AUv3 effect plugin. It does nothing on its own. Use it in GarageBand, AUM or your favourite audio application. Osculatrix does not want your money and it doesn't want your data. It is 100% free. No ads, no in-app purchases, no subscriptions, no surveillance, no nag screens.

About

Speech Jammer

Features
Read full description

Speech Jammer: The Ultimate Delayed Auditory Feedback App Ever tried talking while hearing your own voice with a slight delay? It's surprisingly difficult! Speech Jammer uses the psychological phenomenon of delayed auditory feedback (DAF) to create a unique and entertaining experience. WHAT IS SPEECH JAMMER? Speech Jammer disrupts your speech by playing back your voice with a slight delay through headphones. This delay confuses your brain's speech production system, making it extremely challenging to speak fluently. It's science based fun! KEY FEATURES Real time audio processing with adjustable delay Professional grade audio quality Customizable delay settings for optimal effect Simple, intuitive interface Works with any headphones or earbuds Recording functionality to save your hilarious attempts Perfect for parties, challenges, and social gatherings PERFECT FOR: Party Games: Challenge friends to say tongue twisters Public Speaking Practice: Improve focus and concentration Speech Therapy: Professional DAF therapy applications Entertainment: Hours of fun trying to beat the effect Social Media Content: Create funny challenge videos Education: Demonstrate psychological phenomena HOW IT WORKS The app records your voice through your device's microphone and plays it back through your headphones with a precise delay (typically 100 to 300 milliseconds). This delay interferes with your brain's natural feedback loop for speech, making it difficult to maintain fluent speech. SCIENTIFIC BACKGROUND Delayed Auditory Feedback has been studied extensively in psychology and speech therapy. The effect demonstrates how dependent our speech production is on auditory feedback. It's used professionally in speech therapy and research. EASY TO USE Connect your headphones or earbuds Grant microphone permission Start the jammer Try to speak normally, it's harder than you think! PRIVACY FOCUSED All audio processing happens locally on your device. No data is collected or transmitted. Your recordings stay private and under your control. PERFECT FOR ALL AGES Safe, clean entertainment suitable for everyone. No in app purchases, no subscriptions, just pure fun! Whether you're looking for party entertainment, speech practice tools, or just want to experience this fascinating psychological effect, Speech Jammer delivers an engaging and scientifically interesting experience. Download now and challenge yourself. Can you beat the speech jammer effect? Note: Headphones or earbuds are required for this app to work properly.

Screenshots

Osculatrix2 screens
Speech Jammer3 screens

Verdict

The call

The clearest difference is update cadence: Osculatrix at monthly against Speech Jammer's every 7 months. Speech Jammer's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Osculatrix ships an update monthly, Speech Jammer every 7 months. The most recent releases landed on June 22, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 8 level
Osculatrix versus Speech Jammer: the parameters behind the verdict, then further details
ParameterOsculatrixSpeech Jammer
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyMonthly — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size2 MB19 MB
Age rating4+4+
DeveloperMatthew CaldwellWritecream

In-app purchases

None

Osculatrix

No in-app purchases

None

Speech Jammer

No in-app purchases

Questions

Is Osculatrix free?
Osculatrix is free to download, with no in-app purchases.
Is Speech Jammer free?
Speech Jammer is free to download, with no in-app purchases.
Do Osculatrix or Speech Jammer have ads?
Neither Osculatrix nor Speech Jammer shows ads.
Which is updated more often, Osculatrix or Speech Jammer?
Osculatrix ships an update monthly, and Speech Jammer every 7 months. Most recently, Osculatrix was updated on June 22, 2026 and Speech Jammer on September 17, 2026.

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