Comparison

GravityMark GPU Benchmark vs BD

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

Head to head
About

GravityMark GPU Benchmark

This app showcases modern GPU power by rendering vast real-time scenes. It offloads all scene management and rendering to the GPU, bypassing CPU bottlenecks. Recommended for devices with Apple A14+ and M1+ SoCs.

Highlights
  • Real-time GPU rendering
  • Massive object quantity
  • GPU-accelerated scene management
  • Bypasses CPU bottlenecks
  • Utilizes astronomical data
Features
Read full description

GravityMark GPU Benchmark demonstrates the capabilities of modern GPUs by rendering an enormous quantity of objects in real-time, utilizing GPU acceleration. We avoid typical CPU-based performance bottlenecks by delegating the entirety of scene management and rendering steps exclusively to the GPU. Apple A14+ and M1+ SoC are recommended for great results. The following resources are used in the benchmark: NASA visible Earth database, GEBCO 2020 grid, the HYG star database archive, ESO / Serge Brunier The Milky Way panorama.

About

BD

Features
Read full description

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 — Connect to the BD-Engine module over BLE in seconds. Auto-reconnect remembers your last device. 3DOF Ballistic Solver — Advanced three-degree-of-freedom trajectory computation for accuracy at any range. G1 & G7 Drag Models — Supports both industry-standard drag functions for precise bullet matching across all common calibers. Full Environment Setup — Temperature, pressure, humidity, altitude, wind speed and direction, shooting angle, and muzzle cant — all at your fingertips. Real-Time Trajectory Table — View drop, windage, velocity, and time-of-flight at every range increment. Verify your zero with a dedicated check distance. Custom Bullet Profiles — Configure caliber, weight, ballistic coefficient, and twist rate for your exact load. Dual Unit System — Toggle between metric and imperial units on the fly. Standalone Operation — Once configured, the hardware module computes trajectories independently — 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

GravityMark GPU Benchmark4 screens
BD4 screens

Verdict

The call

GravityMark GPU Benchmark and BD are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

GravityMark GPU Benchmark ships an update every 4 months, BD every 3 months. The most recent releases landed on July 22, 2026 and September 12, 2026 respectively.

ScorecardNo meaningful differences
GravityMark GPU Benchmark versus BD: the parameters behind the verdict, then further details
ParameterGravityMark GPU BenchmarkBD
PriceFreeFree
Rating4.2 (6 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings6 — better—
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size91 MB18 MB
Age rating4+4+
DeveloperTellusim Technologies Inc.Shenzhen Rierxing Electronics Co., Ltd

In-app purchases

None

GravityMark GPU Benchmark

No in-app purchases

None

BD

No in-app purchases

Questions

Is GravityMark GPU Benchmark free?
GravityMark GPU Benchmark is free to download, with no in-app purchases.
Is BD free?
BD is free to download, with no in-app purchases.
Do GravityMark GPU Benchmark or BD have ads?
Neither GravityMark GPU Benchmark nor BD shows ads.
Which is updated more often, GravityMark GPU Benchmark or BD?
GravityMark GPU Benchmark ships an update every 4 months, and BD every 3 months. Most recently, GravityMark GPU Benchmark was updated on July 22, 2026 and BD on September 12, 2026.

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