EndSync — Companion App for Arknights: Endfield

Wiki, tier list, damage calculator, team guides, rotation timelines, farming tools and an in-game overlay — all in one app, in English and Spanish, with no account and no setup.

EndSync brings the whole Endfield toolbox together: track your account, plan your teams, understand the damage math without touching a spreadsheet and keep your rotation on screen while you play.

Your account, organized

• Roster — track every operator: level, potential, skills, weapon investment and gear, piece by piece.
• My Teams — save your squads, reorder them by drag and follow a build checklist with real progress.
• Timers — current banner countdown and daily server reset for your region, right on Home.

Theorycrafting without spreadsheets

Serious Endfield math usually lives in community spreadsheets. EndSync turns it into something you can click:

• Damage calculator — pick an operator, a build and an enemy, and read the result. Behind it runs a true damage model calibrated against frame data: buffs, inflictions and reactions, elemental resistances and dupe keystones from M0 to M5. No formulas to copy, no sheet to maintain.
• Tier list — an index computed by that same engine, measuring in-team burst with standard, accessible teams.
• Rotation timeline — frame-accurate skill sequences with the shared skill bar, per-operator ult energy and real skill gating; share any rotation with a short code.
• Build comparator — two builds of the same operator, face to face, so upgrade decisions take a minute instead of a spreadsheet session.

Guides and knowledge

• Wiki — operators with full skill progression (rank 1 to 12), weapons, gear sets, enemies with per-level stats and elemental resistances, bases (AIC) with production chains, and a glossary with video clips.
• Team guides — curated comps with videos, step-by-step rotations, pitfalls and gear recommendations.
• Buffs guide — every buff type explained, with the math behind the stacking rules.
• Farm and Artificing — essence planner for weapons and engravings, plus a gear upgrade optimizer with real costs and pity tracking.
• Patch notes — version timeline, banner history and event guides.

In-game overlay

A transparent rotation strip over the game shows your next skills at a glance. Toggle it with a hotkey while you play, or keep the full app on a second monitor.

Comfortable by design

• Nine visual themes, dark and light, with full contrast.
• Interface in English and Spanish with more on the way.
• No account and no cloud: your roster and teams are stored locally on your PC.
• Light on resources — built to run alongside the game on modest hardware.
• Game data updates arrive automatically, without reinstalling.

EndSync is a fan-made project and is not affiliated with, endorsed by or connected to Gryphline or Hypergryph. All game assets belong to their respective owners.