Comparison

ACI Sign OTP vs VOIspeed

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

ACI Sign OTP

Features
Read full description

APP per uso professionale solo da utenti abilitati per la sottoscrizione con Firma Elettronica Avanzata di tipo Grafometrico e Firma Digitale Remota.

About

VOIspeed

Features
Read full description

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

ACI Sign OTP4 screens
VOIspeed4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences Β· 4 level
ACI Sign OTP versus VOIspeed: the parameters behind the verdict, then further details
ParameterACI Sign OTPVOIspeed
PriceFreeFree
Update frequencyEvery 12 monthsEvery 5 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 β€” better15.6
Further details β€” not scored
Size8 MB55 MB
Age rating4+4+
DeveloperACI Informatica S.p.A.Teamsystem SPA

In-app purchases

None

ACI Sign OTP

No in-app purchases

None

VOIspeed

No in-app purchases

Questions

Is ACI Sign OTP free?
ACI Sign OTP is free to download, with no in-app purchases.
Is VOIspeed free?
VOIspeed is free to download, with no in-app purchases.
Do ACI Sign OTP or VOIspeed have ads?
Neither ACI Sign OTP nor VOIspeed shows ads.
Which is updated more often, ACI Sign OTP or VOIspeed?
ACI Sign OTP ships an update every 12 months, and VOIspeed every 5 weeks. Most recently, ACI Sign OTP was updated on October 25, 2026 and VOIspeed on November 3, 2026.

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