GravityMark GPU Benchmark vs BD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Real-time GPU rendering
- Massive object quantity
- GPU-accelerated scene management
- Bypasses CPU bottlenecks
- Utilizes astronomical data
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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.
BD
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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 — 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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | GravityMark GPU Benchmark | BD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (6 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 91 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Tellusim Technologies Inc. | Shenzhen Rierxing Electronics Co., Ltd |
In-app purchases
GravityMark GPU Benchmark
No in-app purchases
BD
No in-app purchases








