DroneWallet vs Prime Time NTP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DroneWallet
Securely store and access all your essential drone documents offline. Manage drone profiles, track expiration dates, and prepare for flights with pre-flight checklists. Keep your sensitive information private and readily available.
- Store drone documents (PDFs, images)
- Create drone profiles
- Assign documents to drones
- Monitor expiration dates with reminders
- Pre-flight checklists
- Offline access
- Biometric data protection
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DroneWallet Import PDFs or images, assign insurance to the correct drone and show records in control mode, including expired documents. Missing expiry dates are not presented as confirmed validity. Drone profiles, operator ID with QR and pre-flight checklists remain available locally. Local reminders require system permission. Complete local backup includes files and wallet metadata. Preview its contents before restore adds records while keeping existing data and settings. The backup is not encrypted. Choose its destination in the system dialog. Face ID / Touch ID locks the interface without encrypting files. The app sends technical error diagnostics. No advertising SDKs or cross-company tracking. One-time paid download, no app subscription or in-app purchases. Existing buyers receive updates without buying again. Independent document tool, not a government app or flight authorization. Expiry dates do not replace professional or legal checks. https://www.it-bruderhofer.de/datenschutz.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Prime Time NTP
This utility app displays the precise current time, accurate to the millisecond, by querying multiple NTP servers. It offers detailed insights into clock synchronization and network performance, with advanced features available via a one-time purchase.
- Millisecond time display
- Queries multiple NTP servers
- Detailed sync accuracy
- Network performance metrics
- Adaptive polling
- One-time Pro upgrade
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"Prime Time" is a high-precision time app that shows the true time, accurate to the millisecond. It queries NTP servers directly — the same infrastructure that keeps the internet in sync — and works out the correct time from their answers. Your device's own clock is never used for the display. [New in version 1.4] • Display Offset (Pro): run the large clock up to 99.999 seconds ahead of or behind real time, in 1 ms steps — for remote broadcasts, live streams, or any delayed feed. While it is on, the time turns yellow, with the offset above and the actual time below, so there is no mistaking it for real time. Measurements are never shifted. • Server details now use two columns in landscape on iPhone, so everything fits on one screen. • On iPhone with ProMotion, the clock now refreshes up to 120 times a second. [Free — one server, in full detail] • Real-time sync with one NTP server of your choice • Every exchange laid open: address, stratum, reference, root delay, jitter, estimated error, and the last eight exchanges • Millisecond display, refreshed up to 120 times a second on ProMotion screens • Offset and round-trip time with sparkline history • Adaptive polling that eases off as a server proves steady [Pro — one-time purchase, no subscription] • Compare up to 30 servers. With three or more, a server that is off is outvoted instead of skewing the time shown. • Manual sync on demand • Keep the screen awake while the app is open • Display Offset: run the clock ahead of or behind real time A note on accuracy: a round trip is a single number covering two unknown halves, and nothing in the exchange reveals how it was divided. Prime Time widens the reported ± rather than inventing a correction to hide it. On cellular, where the two directions are least alike, that margin is wider — and shown. Made for developers, network engineers, broadcast crews, and anyone curious about how far off their device's clock really is. Available in English, Japanese, German, and French.
Screenshots
Verdict
The clearest difference is price: Prime Time NTP at Free against DroneWallet's $0.99. DroneWallet's advantage is in-app purchases (none vs 1) and iOS requirement (16.4 vs 26.0). On review sentiment, update cadence, ads 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
Prime Time NTP is free to download; DroneWallet costs $0.99 up front. Prime Time NTP sells 1 one-off in-app purchase. DroneWallet asks for nothing beyond the download.
DroneWallet ships an update monthly, Prime Time NTP every 6 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | DroneWallet | Prime Time NTP |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.4 — better | 26.0 |
| Further details — not scored | ||
| Size | 49 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Lukas Bruderhofer | Kentaro Saito |
Customer experience
DroneWallet
Prime Time NTP
In-app purchases
DroneWallet
No in-app purchases
Prime Time NTP
- Pro Features$4.99
Questions
Is DroneWallet free?
Is Prime Time NTP free?
Do DroneWallet or Prime Time NTP have ads?
Which is updated more often, DroneWallet or Prime Time NTP?
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