Voice vs True Blocker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voice
This utility app estimates a person's age based on their voice. It analyzes vocal characteristics to provide an age prediction. Useful for research or casual exploration of voice analysis.
- Age estimation from voice
- Voice analysis technology
- Cross-device compatibility
- Free to use
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Estimate age from voice
True Blocker
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NIX fails. We don’t. True Blocker keeps 075-557 calls out.” “Tired of dreading every unknown number? Now you can pick up again — without the fear of Swedish telemarketers on the other end. In Sweden, all telemarketers must call from 075-557 numbers. NIX doesn’t always stop them — but True Blocker always does. We use Apple’s own Call Directory to automatically block every 075-557 number, so telemarketers will never get through. Features: • Blocks all 075-557 telemarketer calls • Works even when NIX fails • Powered by Apple’s Call Directory • Easy setup — no complicated menus • Keeps your phone quiet, safe, and stress-free • Built for Sweden, in Swedish Your phone is yours again. Answer freely. Telemarketers? Blocked.”
Screenshots
Verdict
The clearest difference is ads: True Blocker at none against Voice's shown. Voice's advantage is device support (3 vs 1) and iOS requirement (15.8.3 vs 18.5). On price, update cadence and in-app purchases 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.
Voice ships an update fortnightly, True Blocker every 9 days. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.
| Parameter | Voice | True Blocker |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.8.3 — better | 18.5 |
| Further details — not scored | ||
| Size | 36 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | Tilo Delau |
In-app purchases
Voice
No in-app purchases
True Blocker
No in-app purchases
