ACI Sign OTP vs VOIspeed
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ACI Sign OTP
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APP per uso professionale solo da utenti abilitati per la sottoscrizione con Firma Elettronica Avanzata di tipo Grafometrico e Firma Digitale Remota.
VOIspeed
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VOIspeed Γ¨ un'applicazione che vi permetterΓ di interagire con i vostri colleghi utilizzando strumenti avanzati di Unified Communication come visualizzare lo stato e la presence dei vostri colleghi, la chat aziendale, la conference call, la registrazione della chiamata e tanto altro direttamente dal vostro smartphone. Il vostro interno telefonico aziendale sarΓ sempre con voi e potrete ricevere chiamate al cellulare come se foste in azienda.
Screenshots
Verdict
The clearest difference is update cadence: VOIspeed at every 5 weeks against ACI Sign OTP's every 12 months. ACI Sign OTP's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ACI Sign OTP ships an update every 12 months, VOIspeed every 5 weeks. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.
| Parameter | ACI Sign OTP | VOIspeed |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 5 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 β better | 15.6 |
| Further details β not scored | ||
| Size | 8 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | ACI Informatica S.p.A. | Teamsystem SPA |
In-app purchases
ACI Sign OTP
No in-app purchases
VOIspeed
No in-app purchases









