KDM Inspector vs Microsoft Surface
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KDM Inspector
This utility app helps professionals working with Digital Cinema Packages (DCPs) and KDM encryption keys. It allows users to quickly open and view essential key information directly from their iOS device, supporting various file formats.
- Open KDM keys from email
- View key active and expiration times
- See show player public key and UUID
- Supports .xml and .zip KDM files
- Mobile DCP/KDM management
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Check KDM playback windows, content titles, and server details on your iPhone or iPad. Built for projectionists, theater technicians, post-production facilities, and anyone working with Digital Cinema Packages (DCPs), KDM Inspector turns Key Delivery Message (KDM) XML files into clear, readable information. Open a key from Mail or Files, or import a ZIP containing multiple KDMs. Keep the details in a searchable library for quick reference before your next screening. With KDM Inspector, you can: - See whether a playback window is Active, Upcoming, or Expired. - View start and expiration times in your local time zone or UTC. - Find server or media block serial numbers when recognized in the KDM. - Inspect content titles, composition playlist IDs, message IDs, and content key counts. - View recipient details, certificate serial numbers, and show player public key thumbprints. - Search by title, server serial number, recipient, filename, or composition playlist ID. - Filter your library by playback status. - Share a readable summary of key details. Designed for iPhone and iPad, with Dark Mode, support for larger text, and Liquid Glass controls on iOS and iPadOS 26 or later. KDM information is read and stored on your device. No account or upload is required. Active, Upcoming, and Expired describe the playback time window recorded in the KDM.
Microsoft Surface
Manage and personalize your audio devices. Update firmware, view device information, and adjust settings like equalizer and volume. Connect and control devices, and access tutorials for assistance.
- Update earbuds and headphones
- View and change device info
- View battery and volume
- Personalize settings
- Change equalizer settings
- Control connected devices
- Reset devices
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Here are the things you can do: • Update your earbuds and headphones • View and change device info • View battery info and volume level • Personalize settings • Change equalizer settings to get the sound you want • Control which devices are connected • Change language settings • Reset your earbuds and headphones to the factory settings • Watch tutorial videos • Send us feedback
Screenshots
Verdict
The clearest difference is review sentiment: KDM Inspector at 100% against Microsoft Surface's 26%. KDM Inspector also leads on rating (4.0 vs 3.2). Microsoft Surface's advantage is price (Free vs $2.99) and update cadence (every 2 months vs every 38 months). On 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
Microsoft Surface is free to download; KDM Inspector costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KDM Inspector holds the better App Store score, 4.0 against 3.2. That said, the two scores are not equally well evidenced: Microsoft Surface has 159 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of KDM Inspector's written reviews are positive against 26% of Microsoft Surface's.
KDM Inspector ships an update every 38 months, Microsoft Surface every 2 months. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.
| Parameter | KDM Inspector | Microsoft Surface |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | 3.2 (159 ratings) |
| Positive reviews | 100.0% of reviews — better | 25.6% of reviews |
| Number of ratings | 1 | 159 — better |
| Update frequency | Every 38 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Judelson | Microsoft Corporation |
Customer experience
KDM Inspector
Microsoft Surface
Bugs and requests
KDM Inspector
Not enough reviews yet to summarise bugs or requests.
Microsoft Surface
Reported bugs
11 issues- App stuck on scanning/searching for headphones
- Bluetooth connection drops during calls
- App won't recognize headphones even when paired
- Authentication hangs on 'Authenticating' screen
- Constant red light indicator issues
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- Firmware updates cause connection degradation
- App fails to load when headphones are connected
- Pairing mode limbo after power cycling
- Earbud chirping and constant disconnections
- Uneven battery drain between earbuds
- App incompatibility with newer iOS versions
Requested features
9 requests- MacOS app support
- iPad landscape mode support
- Customizable gesture controls
- Better device switching between paired devices
- More EQ preset options
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- Xbox wireless compatibility
- Ability to disable automatic noise cancellation on calls
- Case battery level indicator
- Computer/device management features
In-app purchases
KDM Inspector
No in-app purchases
Microsoft Surface
No in-app purchases
Questions
Is KDM Inspector free?
Is Microsoft Surface free?
Which has better reviews, KDM Inspector or Microsoft Surface?
Do KDM Inspector or Microsoft Surface have ads?
Which is updated more often, KDM Inspector or Microsoft Surface?
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