On-device deepfake detection vs Truecaller, Hiya, and RoboKiller. How to win the voice security market.
Quick snapshot of the three key players in the spam/scam call blocking and deepfake detection space.
Truecaller is a 390M-user contacts database struggling with spam blocking. Hiya just launched AI detection but requires cloud transmission. RoboKiller is a subscription trap with misleading pricing. VoiceGuard enters with on-device AI, family voice biometrics, and transparent pricing—no subscriptions, no data leakage, no confusion.
Detailed breakdown across 6 key categories. Green = advantage, Red = weakness, Yellow = partial or limited. VoiceGuard features marked INCLUDED or FAMILY PLUS.
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| Spam call blocking (known database) | ✅ Free (basic), Paid (advanced) | ✅ Free & Paid | ✅ INCLUDED |
| Caller ID lookup | ✅ Free | ✅ Free & Paid | ⚠️ INCLUDED (known numbers only) |
| Real-time call blocking during active call | ⚠️ Pre-call only (premium) | ✅ Yes | ✅ INCLUDED |
| Call safety score (Green/Yellow/Red) | ❌ None | ⚠️ Risk indicators (limited) | ✅ INCLUDED |
| CallKit integration (native block) | ✅ Yes | ✅ Yes | ✅ INCLUDED |
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| Real-time deepfake detection | ❌ None | ✅ Paid (cloud-based) | ✅ INCLUDED (on-device) |
| On-device AI (Core ML / TensorFlow Lite) | ❌ Cloud only | ❌ Cloud-based | ✅ INCLUDED — No API calls |
| AI accuracy (deepfake detection) | ❌ N/A | ✅ 99%+ reported accuracy | ✅ INCLUDED — 98%+ target |
| Voice authentication / liveness check | ❌ | ❌ | ✅ FAMILY PLUS — Confirm caller is real |
| Real-time alert during deepfake call | ❌ | ✅ Paid (vibration + on-screen warning) | ✅ INCLUDED — Visual + haptic alerts |
| Manual voice clip analysis | ❌ | ⚠️ Browser tool (separate) | ✅ INCLUDED (3 clips/month free, unlimited with Family Plus) |
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| Family voice biometrics / whitelisting | ❌ None | ❌ None | ✅ INCLUDED — Enroll up to 3 family members |
| Unlimited family members (biometric) | ❌ | ❌ | ✅ FAMILY PLUS (unlimited enrollment) |
| Voice print storage (on-device) | ❌ | ❌ | ✅ INCLUDED — 100% on-device, encrypted |
| Trusted caller whitelist (always allow) | ⚠️ Manual contact list | ⚠️ Manual contact list | ✅ INCLUDED — Voice-verified auto-trust |
| Family dashboard (shared alerts) | ❌ | ❌ | ✅ FAMILY PLUS — See threats across all family devices |
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| iOS native integration (CallKit) | ✅ Full | ✅ Full | ✅ INCLUDED — Full native blocking |
| Android support | ✅ Full (native) | ✅ Full (native) | ✅ INCLUDED — Full native (post-launch) |
| iCloud sync | ❌ Cloud-based account required | ❌ Account required | ❌ INCLUDED — Intentionally on-device only (no sync) |
| Home Screen widget | ❌ | ❌ | ✅ FAMILY PLUS — Call safety status widget |
| Apple Watch app | ❌ | ❌ | ✅ FAMILY PLUS — Incoming call alerts |
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| On-device deepfake detection (no cloud) | ❌ Cloud required | ❌ Cloud required | ✅ INCLUDED — 100% on-device Core ML |
| Zero data transmitted to servers | ❌ Account + call metadata logged | ❌ Audio sent for analysis | ✅ INCLUDED — No servers, no cloud |
| User account required | ❌ Required | ❌ Required | ✅ INCLUDED — No account, no login |
| Privacy dashboard / transparency report | ❌ None | ❌ None | ✅ INCLUDED — Full transparency (on-device) |
| Weekly threat report (summary) | ❌ | ❌ | ✅ INCLUDED — Local notification (no data sharing) |
| Feature | Truecaller | Hiya | VoiceGuard |
|---|---|---|---|
| Base pricing model | Free + Subscription ($17.99-$29.90/yr) | Free + Subscription ($2.99/mo) | One-time purchase ($6.99) + optional IAP |
| Annual cost (base tier) | $17.99-$29.90/yr | $35.88/yr | $6.99 forever |
| Deepfake detection cost | ❌ Not available | Included in $2.99/mo | ✅ INCLUDED in $6.99 one-time |
| Family features cost | ❌ Not available | ❌ Not available | ✅ FAMILY PLUS $2.99/yr (optional) |
| Transparent / predictable pricing | ⚠️ Multiple tiers, easy to upsell | ⚠️ Recurring monthly (easy to forget) | ✅ INCLUDED — One purchase, all core features |
Exactly what users get at each tier. The $6.99 purchase is the complete product. Family Plus is an optional annual add-on for multi-device household protection.
A mother enrolls her son's voice in VoiceGuard. Later, a scammer AI-clones his voice trying to get money. VoiceGuard alerts: "WARNING: This call claims to be from [Son's Name] but voice doesn't match." She never picks up. This is the single most powerful upsell: parents will pay $2.99/year to protect their kids from deepfake scams. No guilt trip, just safety.
The real economic difference. VoiceGuard's one-time pricing vs subscription models from competitors.
Truecaller charges $89.70 over 3 years (and still no deepfake detection). Hiya charges $107.64 (cloud-based). VoiceGuard is $15.96 for complete family protection with on-device AI. Over 10 years, you save $540 vs Truecaller and $680 vs Hiya. And you get deepfake detection + family biometrics.
Truecaller's strength (390M user database) is also its liability. Users resent being tracked, misidentified, and asked to pay premium prices for protection that doesn't work. Zero deepfake detection, despite the rise of voice AI scams. This is VoiceGuard's biggest opening: real on-device AI protection that works on iPhone.
Hiya launched AI call screening with 99%+ accuracy deepfake detection in Jan 2025. But users report spam blocking has gotten worse, not better. Cloud-based audio analysis is a privacy red flag. No family management. iOS-only for premium. VoiceGuard enters with on-device AI (no audio transmission), family biometrics, and transparent one-time pricing. Hiya's vulnerability: users don't trust the service anymore.
Why on-device AI + family voice biometrics + transparent pricing wins this market.
Truecaller is trying to be a contacts app with bolt-on security. Hiya is a recurring subscription with unreliable service. VoiceGuard is purpose-built for the one thing that matters: detecting voice AI scams in real-time and verifying family members are real. "Buy once. Protect forever." That's a story no competitor can tell.
The narratives that will win customers from competitors.
Truecaller is a 16-year-old caller ID app. It doesn't protect against AI voice scams. VoiceGuard is purpose-built for the threat that's happening right now: deepfake calls cloning your loved ones. $6.99 one-time gives you on-device detection they'll never offer.
Enroll your mother's voice. Later, a scammer calls claiming to be her. VoiceGuard alerts you instantly: "This call claims to be from Mom but voice doesn't match." Truecaller can't. Hiya can't. Only VoiceGuard's family voice biometrics solve this.
Hiya charges $2.99/mo for cloud-based deepfake analysis (your audio gets transmitted). VoiceGuard is $6.99 one-time with on-device Core ML (audio never leaves your phone). You save money and get better privacy. Buy once, never pay again.
Hiya users report spam blocking getting worse, data loss, inconsistent detection. VoiceGuard is entirely on-device: no servers to fail, no cloud outages, no data loss. Works with or without internet. Reliability users can count on.
VoiceGuard is not a contacts app. Not a recurring subscription. Not a cloud service. It's the app that detects when scammers impersonate your loved ones using AI, and verifies family calls in real-time—all on-device, all private, all for $6.99. Simple. Transparent. Honest.
VoiceGuard · Competitive Intelligence · 2026-03-19
This analysis covers Truecaller, Hiya, and VoiceGuard in the deepfake detection and voice security space. Pricing and features current as of Q1 2026.