Zip Authenticator vs SP33D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zip Authenticator
Enhance financial transaction security with multi-factor authentication for Zip users. Approve payments directly from your mobile device, receiving detailed transaction information before confirmation. Compliant with EU regulations for secure online payments.
- Multi-factor authentication for Zip payments
- Displays transaction details (amount, payee)
- EU Strong Customer Authentication (SCA) compliance
- Easy QR code setup
- PIN-based verification
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With Zip Authenticator, Zip users (ziphq.com) gain an added layer of security for financial transactions by authenticating payments that are approved in Zip. Zip Authenticator ensures you are fully aware of the transaction about to happen, providing the details of the type, value and payee of the transaction, and then allowing you to approve the transaction on your mobile device. This provides strong 2-factor authentication of financial transactions compliant with EU Secure Customer Authentication (SCA) regulations. Zip Authenticator is easy to configure. To set up your authentication, you’ll first link a mobile device and create a pin. As you complete various payment-related activities in Zip, you’ll be prompted to enter your pin, which will generate a QR code. Then, open up your Zip Authenticator app to scan the QR code and verify your identity. Features include - Provides multi-factor authentication for B2B payment transactions in Zip (ziphq.com) - Displays payment details within the payment authentication alert, including amount and payee - Allows organizations using Zip for payments to comply with EU Strong Customer Authentication (SCA) regulations - Easy setup via QR code To use Zip Authenticator with Zip, you need to set up a pin on Zip > Personal settings. Visit www.ziphq.com/personal-settings/payout-authentication to get started.
SP33D
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SP33D: your ultimate speedometer companion. Real-time speed monitoring right on your phone, complete with a sleek head-up display. SP33D turns your iPhone or iPad into a clean, glanceable speedometer. One giant number, no clutter — whether you're driving, cycling, or running. KEY FEATURES 1. Head-Up Display (HUD): Place your phone near the windshield and SP33D mirrors the display so your speed reflects right in the glass — eyes on the road, always. 2. Real-Time Speed Tracking: Navigation-grade GPS precision delivers smooth, reliable readings the moment they happen. 3. MPH or KM/H: Switch units instantly, anytime. Your choice is remembered. 4. Distraction-Free Design: A single oversized readout on a pure black background — easy to read in daylight, easy on your eyes at night. The screen stays awake for your whole trip. 5. Works Everywhere: Car, motorcycle, bicycle, or on foot — SP33D adapts to however you move. Download SP33D and take control of your speed. Note: Speed is calculated from GPS and may differ slightly from your vehicle's speedometer.
Screenshots
Verdict
The clearest difference is price: Zip Authenticator at Free against SP33D's $0.99. Zip Authenticator also leads on iOS requirement (13.4 vs 17.0). On update cadence, 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
Zip Authenticator is free to download; SP33D costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Zip Authenticator ships an update every 13 months, SP33D every 15 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.
| Parameter | Zip Authenticator | SP33D |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (6 ratings) — better | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 13 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ZipHQ, Inc. | Waldemar Osmala |
In-app purchases
Zip Authenticator
No in-app purchases
SP33D
No in-app purchases









