ISSEN vs Bolna Voice AI

Comparing the features of ISSEN to Bolna Voice AI

Feature
ISSEN
Bolna Voice AI

Capability Features

24x7 AI Helpline
API Custom Payload
Bulk Calling at Scale
Concurrent Calls Support
250+
Connect Any Model
ASRLLMTTS20+ models
Custom API Triggers
Custom Curriculum
Data Privacy & Residency
India / USA specific data residency, on-prep deployment
Dialect and Style Options
Japanese - Tokyo - FormalSpanish - Mexico City - SlangFrench (FR) - Paris - Standard
Flexible Lesson Structure
Grammar Lessons
Human Agent Escalation
Human-in-the-Loop Labeling
Inbound and Outbound Calls
InboundOutbound
Indian Language Support
HindiHinglishTamilTeluguEnglish10+ Indian and Foreign Languages
Industry Use Cases
EcommerceEdTechHealth TechBFSIHospitality
Integrated Speech and Telephony
Latency
<300ms
Live Call Trigger
Model Switching
Multi-language Support
Multiple Tutor Personalities
SakuraSantiagoCéleste
Natural Conversation
No Judgment
No-Code Agent Creation
Personalized Lessons
Prebuilt Templates
Realtime Voice Tutor
Shadowing and Translation Drills
Supported Language List
AfrikaansArabicArmenianAzerbaijaniBelarusianBosnianBulgarianCantoneseCatalanCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIcelandicIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMandarin ChineseMaoriMarathiNepaliNorwegianPersianPolishPortugueseRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilThaiTurkishUkrainianUrduVietnameseWelsh
Tutor Customization
Workflow Integration
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Integration Features

Developer SDKs
PythonJavaScriptcURL
Mobile App Integration
Play storeApp store
Public API
Web-Based Platform
Workflow Automation Integrations
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Limitation Features

No Explicit Quotas or Limits
No File Format Support Listed
No Human Teachers
No Mention of Free Tier
No Public Pricing Listed
Not Completely Free

Pricing Features

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