MemDBG vs ProMod

MemDBG is a console payload and native frontend for memory inspection, scanning, debugging, trainer creation and research on PS4, PS5 and host machines. Its stated uses include offline homebrew development, reverse-engineering education, preservation and authorized security research. Scan workflows include exact values, process-wide searches, AOB patterns, pointer chains, unknown values and heuristic Smart Auto-Search. Debugging tools cover thread control, stepping, registers, breakpoints, watchpoints, stack walking and disassembly. Trainer workflows support .cht save and load, batchcode import, ON/OFF values, lock intervals and patch-to-trainer export. The frontend supports desktop-side Lua and Python plugins from repository manifests, with a public MemDBG plugin repository as its default source. It documents a GDB remote bridge for IDA Pro and an optional x64dbg plugin bridge. MemDBG is free and licensed GPL-3.0-or-later; it is in active pre-release development. Host builds bind to loopback by default, and the project recommends an allowlisted frontend IP for LAN sessions. Some macOS debugger actions may need SIP or code-signing changes; the iOS/iPadOS release artifact is unsigned.

ProMod manages memory modifications for individual processes on macOS and iOS. On a Mac, it writes four-byte ARM instructions into a target process and automatically uses code caving for larger patches. Special mods can follow an address in a CPU register and monitor or rewrite float or int32 values when thresholds are met. One-instruction mods can use hardware breakpoints without writing to the target app’s memory; the FAQ says a Mac processor allows six at a time. Keyboard shortcuts can trigger one or several mods, with audible cues. Setups can be saved and shared as portable .pro files, with built-in or password encryption. Bytes Diff scans for memory changes, and Memory Locator searches for hex patterns. Users can enter raw hex or ARM64 assembly, which ProMod assembles, and disassemble surrounding instructions. The Mac app requires an Apple Silicon Mac with macOS 12.0 or later; Intel Macs are unsupported. ProMod Mobile runs on non-jailbroken iOS devices but requires injecting libProModMobile.dylib with Sideloadly or a similar tool. The maker describes it for debugging, learning, single-player, and offline use.