Delta vs Codex vs Hydrogen Compared

These three come up most often for mobile Roblox scripting. They overlap heavily and the differences that matter are narrower than comparison tables usually suggest.

Need another section? Start with the Delta Executor homepage, use the Delta Executor download hub for platform files and setup routes, read the Delta Executor key guide, or browse the Delta Executor scripts library.

Quick Verdict

You want	Pick
Widest platform coverage	Delta
Best script compatibility	Delta
Lightest on old hardware	Codex
Mac support	Delta or Hydrogen
Simplest interface	Codex

Side By Side

Feature	Delta	Codex	Hydrogen
Android	Yes	Yes	Yes
iOS	Yes	Limited	Yes
macOS	Yes	No	Yes
Windows	Emulator	Emulator	Emulator
VNG build	Yes	No	No
Key system	Yes	Yes	Yes
Script library	Extensive	Limited	Moderate
App size	Largest	Smallest	Mid
Script compatibility	Highest	Moderate	Moderate to high
Update speed	Fastest	Variable	Variable

Platform Coverage

Delta covers the most ground: Android, iOS, Mac and the Vietnamese VNG client. If you need VNG, it is effectively your only option of the three.

Hydrogen covers Android, iOS and Mac. Codex is strongest on Android with more limited support elsewhere.

None has a native Windows build. All three mean running an emulator on PC.

Script Compatibility

Delta handles the broadest range of scripts, so hub scripts and larger GUI packs written for other tools generally run unmodified.

Hydrogen is reasonable and handles most common scripts. Codex is narrower, and complex script packs are more likely to fail.

If you mostly run simple auto farm scripts for one game, this difference barely affects you. If you use script hubs regularly, it matters a lot.

Performance And Device Requirements

Codex is the lightest, which is its clearest advantage. On a 3GB RAM phone already struggling with Roblox, it is the one most likely to work at all.

Delta is the heaviest. Hydrogen sits between them.

On a mid range or newer phone, this difference is not noticeable. On older hardware it decides the outcome.

Key Systems

All three use them and all three take a similar amount of time. None is meaningfully better here.

All three sell a paid tier removing the requirement, and in every case you are paying an anonymous developer with no refund process.

Stability

Delta has the best recent record for patching quickly after Roblox updates, largely because a bigger user base supports more active development.

Codex and Hydrogen have both had longer gaps at various points. All three break when Roblox updates, which is universal for the category.

Where Each One Loses

Delta: heaviest app, worst on old hardware, iOS certificate frustration.

Codex: narrowest script support, smallest library, weakest platform coverage.

Hydrogen: no standout advantage over Delta on any axis except size, which Codex beats it on anyway.

The Honest Summary

For most people on reasonably modern hardware, Delta is the better tool because it covers more platforms and runs more scripts.

Codex earns its place on old and low memory devices, which is a real and common situation.

Hydrogen is a solid middle option without a category it clearly wins.

None of them changes your ban risk meaningfully, because detection targets script behaviour rather than the executor.

Frequently Asked Questions

Which is safest? None. All three violate the Terms of Service and carry ban risk.

Can I install more than one? Yes, though running two at once gives no benefit and may conflict.

Which works best on iPhone? Delta or Hydrogen. Both suffer the same certificate revocation problem.

Which updates fastest after a Roblox patch? Delta, on recent record, though all three break regularly.