D vs OBsmart Ultra
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
D
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D-Vision is the companion software for electronic sighting devices produced by DiscoveryOpt, which can help you manage your devices. The specific features are as follows: 1. Device Connection 2. Real-time Device Video Streaming 3. Device-side Control 4. Access and Download of the Database 5. Firmware Update
OBsmart Ultra
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Precision ballistics solver built for accuracy& weather meter suport. Real-time corrections for long -range shooting, hunting, and tactical use.Supports user-defined units and syncing of environmental parameters.
Screenshots
Verdict
The clearest difference is update cadence: OBsmart Ultra at every 3 weeks against D's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
D ships an update every 6 weeks, OBsmart Ultra every 3 weeks. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.
| Parameter | D | OBsmart Ultra |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details โ not scored | ||
| Size | 47 MB | 25 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen DiscoveryOpt Technology Co., Ltd. | ๆๅฉท ่ฐญ |
In-app purchases
D
No in-app purchases
OBsmart Ultra
No in-app purchases
