MobilePKI vs Moon Clock
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MobilePKI
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MobilePKI is a PKI storage for users to manage their PKI certificates in iPhone and iPad. With MobilePKI, people can manage their certificates more simply and secure. Certificate import steps: 1. Load the certificate(pfx file) to MobilePKI folder by iTunes. 2. Click "CertMgt" icon and click β+β on the right-up corner to import a certificate. Select a file and input its password to finish the import process. "Accounts" is used to manage the relation of the certificate and password. "Settings" can configure the APP protection PIN and some options. "APPAuth" is reserved for future.
Moon Clock
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Moon Clock is a full-screen clock with Moon phase widgets. Check the time, and take a moment to look at todayβs Moon. A Moon for your Home Screen Choose a small, medium, or large widget and put it where youβll see it often. Check the time and lunar phase without opening the app. See the Moon in full screen Open Moon Clock to give the Moon and time room to fill your screen. The phase and lighting change with time, and you can choose an observing location to see the Moon from there. Find a look you like Keep the natural lunar surface, or try pixel, halftone, and CRT effects. Mix fonts, text effects, and Moon styles, then arrange your full-screen clock. Your widgets can follow your chosen fonts and Moon effects, so thereβs no need to set them up again. Take a closer look The 3D Moon is built from real lunar imagery and elevation data. Zoom in to explore craters, ridges, and the shadows they cast. Rotate the Moon freely to see the far side, hidden from view on Earth. Free features and Moon Clock Pro The basic clock and widgets with the default look are free. Moon Clock Pro is a one-time purchase with a permanent unlock. No subscription. It includes: β’ Every font, text effect, and Moon style β’ Creating and saving your own text styles and freeform layouts β’ Zooming in on the lunar surface and viewing the Moon from any angle Unlocked fonts and Moon effects are also available in widgets, with no separate purchase. No account or sign-in is required. Location access is optional; you can choose an observing location manually.
Screenshots
Verdict
The clearest difference is in-app purchases: MobilePKI at none against Moon Clock's 1. MobilePKI also leads on iOS requirement (8.1 vs 18.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Moon Clock sells 1 one-off in-app purchase. MobilePKI asks for nothing beyond the download.
MobilePKI ships an update every 4 weeks, Moon Clock every 6 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | MobilePKI | Moon Clock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks β better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 8.1 β better | 18.0 |
| Further details β not scored | ||
| Size | 6 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Changing Information Technology Inc. | YI-WEN CHOU |
In-app purchases
MobilePKI
No in-app purchases
Moon Clock
- Moon Clock Pro$5.99









