I vs Volocal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
I
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I-RECEIVE is a smart platform developed by Hong Yip Service Company Limited for our contractors/ suppliers to submit invoice documents. It allows user to check the invoice record and track the progress of invoice processing.
Volocal
This AI assistant runs entirely on your device, offering private, real-time voice conversations without needing an internet connection. It supports interrupting the AI mid-sentence and requires no subscriptions or API keys.
- Fully on-device AI processing
- Real-time voice conversations
- Interruptible AI responses
- No internet connection required
- No subscriptions or API keys
- Open source
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Talk to an AI assistant that runs entirely on your iPhone. No cloud servers, no API keys, no subscriptions -- just real-time voice conversations powered by on-device intelligence. FULLY PRIVATE, FULLY LOCAL Every word you say stays on your device. Volocal runs three specialized AI models directly on your iPhone's hardware -- nothing is ever sent to the internet. After downloading the models on first launch, you never need a network connection again. REAL-TIME VOICE CONVERSATIONS Speak naturally and hear responses streamed back in real-time. Volocal uses a three-stage pipeline -- Speech-to-Text, Language Model, and Text-to-Speech -- all running simultaneously on different chips inside your phone for smooth, low-latency conversations. INTERRUPT ANYTIME Change your mind mid-sentence? Just start talking. Volocal supports barge-in with hardware echo cancellation, so the microphone stays active even while the assistant is speaking. No need to wait for it to finish. NO SUBSCRIPTIONS, NO API KEYS Volocal is completely free and open source. There are no in-app purchases, no subscriptions, and no hidden costs. Download the models once (~2.3 GB, Wi-Fi recommended) and you're set. HOW IT WORKS Volocal splits the workload across your iPhone's specialized processors: - Speech recognition (Parakeet EOU) runs on the Neural Engine - Language model (Qwen3.5-2B) runs on the GPU via Metal - Text-to-speech (PocketTTS) runs on the Neural Engine This separation means all three models can run at the same time without competing for resources, keeping conversations fluid and responsive. LIGHTWEIGHT Total runtime memory usage is approximately 1.2 GB, well within the limits of modern iPhones. REQUIREMENTS - iOS 17 or later - Physical device only (Neural Engine is not available in the Simulator) - ~2.3 GB of storage for model downloads on first launch Volocal is MIT licensed and open source. Built by Fikri Karim.
Screenshots
Verdict
The clearest difference is iOS requirement: I at 13.6 against Volocal's 17.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | I | Volocal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 46 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Hong Yip Service Company Ltd. | Fikri Karim |
In-app purchases
I
No in-app purchases
Volocal
No in-app purchases









