ISSEN vs Coval

Comparing the features of ISSEN to Coval

Feature
ISSEN
Coval

Capability Features

Audio Inputs
Audio Replay
Built-in Metrics
latencyaccuracytool-call effectivenessinstruction compliance
Custom Curriculum
Custom Environments
Custom Metrics
Dialect and Style Options
Japanese - Tokyo - FormalSpanish - Mexico City - SlangFrench (FR) - Paris - Standard
Flexible Lesson Structure
Fully Customizable Voice
Grammar Lessons
Human-in-the-Loop
Multiple Tutor Personalities
SakuraSantiagoCéleste
No Judgment
Performance Alerts
Personalized Lessons
Production Call Monitoring
Prompt Change Re-simulation
Realtime Voice Tutor
Regression Tracking
Scenario-Based Testing
Shadowing and Translation Drills
Simulate Conversations
Streaming Alerts
Supported Language List
AfrikaansArabicArmenianAzerbaijaniBelarusianBosnianBulgarianCantoneseCatalanCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIcelandicIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMandarin ChineseMaoriMarathiNepaliNorwegianPersianPolishPortugueseRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilThaiTurkishUkrainianUrduVietnameseWelsh
Text Chat Compatible
Transcripts as Input
Tutor Customization
Voice AI Features
Workflow Tracing
Workflow-Based Simulation

Integration Features

Developer-Focused Integrations
Mobile App Integration
Play storeApp store
Web-Based Platform

Limitation Features

No Human Teachers
No Mentioned Integrations
No Pricing Information
Not Completely Free

Pricing Features

Cancel Anytime
Free Tier
Free Trial Duration
10
Free Trial/Demo
Monthly Payment
Pricing Range
$20-$29/month