Comparison

GRS RemoteX vs BD

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

Head to head
About

GRS RemoteX

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GRS RemoteX connects to a handheld thermal imaging device, utilizing infrared thermal imaging components and a professional display eyepiece for handheld operation. It captures rich image information in low-visibility or completely dark environments. Designed for rugged durability to meet outdoor usage demands, the device is widely applicable in scenarios such as patrols, law enforcement, search and rescue, narcotics and smuggling interdiction, prisoner pursuit, and hiking/outdoor exploration.

About

BD

Features
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App Name: BD-Engine Subtitle: Wireless Ballistic Calculator Description: BD-Engine is a professional ballistic calculator that connects wirelessly to the BD-Engine hardware module via Bluetooth Low Energy, delivering real-time, high-precision trajectory computation. Built for precision shooters, BD-Engine provides fast and accurate firing solutions with the power of a dedicated solver and the simplicity of a mobile app. Key Features: Instant Wireless Pairing โ€” Connect to the BD-Engine module over BLE in seconds. Auto-reconnect remembers your last device. 3DOF Ballistic Solver โ€” Advanced three-degree-of-freedom trajectory computation for accuracy at any range. G1 & G7 Drag Models โ€” Supports both industry-standard drag functions for precise bullet matching across all common calibers. Full Environment Setup โ€” Temperature, pressure, humidity, altitude, wind speed and direction, shooting angle, and muzzle cant โ€” all at your fingertips. Real-Time Trajectory Table โ€” View drop, windage, velocity, and time-of-flight at every range increment. Verify your zero with a dedicated check distance. Custom Bullet Profiles โ€” Configure caliber, weight, ballistic coefficient, and twist rate for your exact load. Dual Unit System โ€” Toggle between metric and imperial units on the fly. Standalone Operation โ€” Once configured, the hardware module computes trajectories independently โ€” no phone required for firing solutions. BD-Engine combines dedicated ballistic hardware with an intuitive iPhone interface for shooters who demand precision. Note: Requires a device equipped with the BD-Engine BLE hardware module (sold separately).

Screenshots

GRS RemoteX4 screens
BD4 screens

Verdict

The call

The clearest difference is update cadence: GRS RemoteX at fortnightly against BD's every 3 months. GRS RemoteX also leads on iOS requirement (12 vs 15.6). 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GRS RemoteX ships an update fortnightly, BD every 3 months. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

Scorecard2 real differences ยท 4 level
GRS RemoteX versus BD: the parameters behind the verdict, then further details
ParameterGRS RemoteXBD
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS12 โ€” better15.6
Further details โ€” not scored
Size49 MB18 MB
Age rating4+4+
DeveloperGOYOJO Industrial Technology (Shenzhen) Co., Ltd.Shenzhen Rierxing Electronics Co., Ltd

In-app purchases

None

GRS RemoteX

No in-app purchases

None

BD

No in-app purchases

Questions

Is GRS RemoteX free?
GRS RemoteX is free to download, with no in-app purchases.
Is BD free?
BD is free to download, with no in-app purchases.
Do GRS RemoteX or BD have ads?
Neither GRS RemoteX nor BD shows ads.
Which is updated more often, GRS RemoteX or BD?
GRS RemoteX ships an update fortnightly, and BD every 3 months. Most recently, GRS RemoteX was updated on September 20, 2026 and BD on September 12, 2026.

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