Trans Sped OTP vs Voltrelli
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trans Sped OTP
Receive push notifications for your digital certificate to securely sign documents remotely. This offers a fast and safe method for authentication.
- Push notifications for digital certificates
- Secure document signing
- Remote authentication
- Fast and safe signing process
Read full descriptionHide full description
With the Trans Sped OTP app, you get a push notification with your Trans Sped qualified digital certificate anywhere you are. This is the fastest and safest option to sign documents using your Trans Sped certificate.
Voltrelli
Read full descriptionHide full description
By scanning the QR code on the station, you can start charging in just a few steps. You can view charging statistics, charging history, a map of Romania with all stations across the country, and much more.
Screenshots
Verdict
The clearest difference is update cadence: Voltrelli at every 10 days against Trans Sped OTP's every 3 months. Trans Sped OTP's advantage is iOS requirement (11.0 vs 15.1). 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.
Trans Sped OTP ships an update every 3 months, Voltrelli every 10 days. The most recent releases landed on June 11, 2026 and September 17, 2026 respectively.
| Parameter | Trans Sped OTP | Voltrelli |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 8.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 51 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Trans Sped SRL | Smart Business & Technologies Solutions SRL |
In-app purchases
Trans Sped OTP
No in-app purchases
Voltrelli
No in-app purchases
