Previnet OTP vs ZapGrid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Previnet OTP
This utility app generates unique, time-based verification codes for enhanced security when accessing web services. It supports multiple accounts and offers convenient activation via QR code or URL.
- Generates time-based verification codes
- Provides enhanced security for web services
- Supports multiple accounts
- QR Code activation
- URL activation
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Previnet OTP (One Time Password) generates unique, time-based verification codes that provide additional security when signing in with Previnet web services. Features: - multiple accounts - QR Code activation - URL activation
ZapGrid
Locate and use electric vehicle charging stations directly from your device. Manage your charging sessions from start to finish, receiving real-time status updates throughout the process.
- Locate charging stations via geolocation
- Identify available charging points
- Initiate and manage charging sessions
- Receive real-time charging status updates
- Guided charging procedures
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ZapGrid è il sistema per utilizzare le colonnine di ricarica direttamente dal tuo device. Partendo dalla geolocalizzazione ed identificazione delle prese sul territorio, è possibile effettuare tutte le operazioni di ricarica. Dall'avvio della ricarica fino al termine, ZapGrid ti guiderà nella procedura e ti terrà informato sullo stato.
Screenshots
Verdict
The clearest difference is review sentiment: ZapGrid at 8% against Previnet OTP's 0%. ZapGrid also leads on device support (3 vs 1). On price, update cadence, ads 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.
Previnet OTP ships an update every 3 months, ZapGrid every 5 months. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.
| Parameter | Previnet OTP | ZapGrid |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 8.0% of reviews — better |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Previnet S.p.A. | G.M.T. S.p.A. |
Customer experience
Previnet OTP
ZapGrid
In-app purchases
Previnet OTP
No in-app purchases
ZapGrid
No in-app purchases
