D vs OBsmart Ultra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
This utility app allows users to connect their scope and quickly set up various parameters for their firearm, ammunition, and environmental conditions. It features a ballistics table for scope setup and supports device firmware upgrades. Manage firearms, units, and perform distance calculations.
- Scope parameter setup
- Ballistics table integration
- Device firmware OTA upgrades
- Firearm management
- Unit settings and conversion
- Distance calculation
Read full descriptionHide full description
"Connect your scope and quickly set up various parameters through your phone. Detailed features are as follows: 1. Set parameters for your firearm, ammunition, distance, elevation angle, environment, etc. 2. Enter the ballistics table to quickly complete the scope setup. 3. Device firmware OTA (Over-The-Air) upgrade. 4. Firearm management, unit settings, distance calculation, unit conversion, etc."
OBsmart Ultra
Read full descriptionHide full description
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 · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · 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 30, 2026 and October 25, 2026 respectively.
| Parameter | D | OBsmart Ultra |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 25 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen DiscoveryOpt Technology Co., Ltd. | 晓婷 谭 |
In-app purchases
D
No in-app purchases
OBsmart Ultra
No in-app purchases
