Comparison

Post Matrix Scan vs Prime Time NTP

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

Head to head
About

Post Matrix Scan

Features
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Scan and decode Data Matrix codes on franked mail (DV-Freimachung 1.54, Internetmarke). FEATURES: - Scan Data Matrix codes using your camera - Import images from your photo library - Enter hex data manually - Quick Actions: Long-press the app icon to scan, import image, or enter hex code - View detailed code information including: - Sender identification (crowdsourced) - Product type (letter, parcel, etc.) - Postage value - Submission date - Customer number (EKP) - Contribute sender identifications to help the community - Support for German and English This app decodes the data encoded in postal Data Matrix franking codes, giving you insight into postage information that would otherwise be unreadable. Includes the current product catalog V60 with all postage rates. This app is not affiliated with or endorsed by Deutsche Post AG.

About

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.

Highlights
  • Millisecond time display
  • Queries multiple NTP servers
  • Detailed sync accuracy
  • Network performance metrics
  • Adaptive polling
  • One-time Pro upgrade
Features
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"Prime Time" is a high-precision time app that shows the true time, accurate to the millisecond. It queries multiple 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 1.2] • The complete four-timestamp NTP exchange. The time a server spends preparing its reply is now removed from the measured delay instead of being counted as network transit. • A clock filter. Each server keeps its last eight exchanges, and the one with the lowest synchronization distance is used — not simply the newest — so one congested query no longer drags the reading with it. • Best-source marking. A green double ring shows the server with the lowest estimated error. The device offset is measured from that server and quoted with its ± accuracy. • Wi-Fi and cellular awareness. The link in use is shown, and an optional warm-up avoids measuring a radio that has just woken from idle. • Two in-app help screens explaining every mark on the display, and the reasoning behind how often servers are queried. • Japanese interface when the device language is Japanese. [Free] • Real-time sync with up to 5 NTP servers • Millisecond display, refreshed up to 120 times a second on ProMotion screens • Offset and round-trip time per server, with sparkline history • Stratum and reference clock ID per server • Adaptive polling that eases off as a server proves steady [Pro — one-time purchase, no subscription] • Manual sync on demand • Keep the screen awake while the app is open • Up to 30 NTP servers monitored at once 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, and anyone curious about how far off their device's clock really is.

Screenshots

Post Matrix Scan4 screens
Prime Time NTP4 screens

Verdict

The call

The clearest difference is in-app purchases: Post Matrix Scan at none against Prime Time NTP's 1. Post Matrix Scan also leads on update cadence (weekly vs every 3 months) and iOS requirement (16.0 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Prime Time NTP sells 1 one-off in-app purchase. Post Matrix Scan asks for nothing beyond the download.

UpkeepUpdate frequency

Post Matrix Scan ships an update weekly, Prime Time NTP every 3 months. The most recent releases landed on September 7, 2026 and August 27, 2026 respectively.

Scorecard3 real differences · 7 level
Post Matrix Scan versus Prime Time NTP: the parameters behind the verdict, then further details
ParameterPost Matrix ScanPrime Time NTP
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.0
Further details — not scored
Size2 MB2 MB
Age rating4+4+
DeveloperPhilipp KursaweKentaro Saito

In-app purchases

None

Post Matrix Scan

No in-app purchases

1 purchases

Prime Time NTP

One-time1
  • Premium Features$9.99

Questions

Is Post Matrix Scan free?
Post Matrix Scan is free to download, with no in-app purchases.
Is Prime Time NTP free?
Prime Time NTP is free to download, with in-app purchases available.
Do Post Matrix Scan or Prime Time NTP have ads?
Neither Post Matrix Scan nor Prime Time NTP shows ads.
Which is updated more often, Post Matrix Scan or Prime Time NTP?
Post Matrix Scan ships an update weekly, and Prime Time NTP every 3 months. Most recently, Post Matrix Scan was updated on September 7, 2026 and Prime Time NTP on August 27, 2026.

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