EndSync — companion app for Arknights: Endfield

EndSync runs next to the game through Overwolf: it reads your roster and position while you play, shows an overlay over the game and gathers the planning tools in one window. No account; your data stays on your PC.

Languages. English, Spanish, Chinese (Simplified), Japanese and Korean, picked from your system language and switchable in Settings. Skills, talents, weapons, gear, enemies, profiles and medals use the game's official texts; the app's own pages are translated too. Team guides are in English and Spanish.

With the game running

• Roster sync — level, potential, skill ranks, weapon and gear written from the game. Can be turned off; "Sync now" runs it by hand.
• Map "you are here" — the map jumps to your zone, follows you and points to the nearest marker you have not collected.
• Profile per account — recognized from the game, each with its own data and play history: sessions, hours, streaks, most-controlled operators, a weekly summary and what changed since your last visit.
• Reminders — banner start and end, event end, expiring gift codes, daily and weekly resets, 12/24/48 h ahead: over the game, as a toast in the app or a taskbar flash. Session summary when the game closes.
• Overlay (Alt+X) — Tier list, Bases (AIC codes), Teams (short guides), Rotation (a strip with your next skills that follows the operator you control and pins itself in combat) and Agenda (gift codes with one-click copy, resets, banners, weekly checklist, essences of your zone). Inside the game or as a desktop window, with adjustable opacity.
• Second monitor — the app moves to the free monitor while you play.

Map

Valley IV and Wuling, 15 levels: core gatherables, intel archive and map exploration, 2,033 markers of 32 types. Filter, hide what you have, mark as obtained. Tiles © SKPORT / Gryphline, loaded online.

AIC Layout (Progression)

A 2D planner for AIC bases: 103 structures with footprint, ports, power and recipes from the game data; belts and elevated pipes with splitters, convergers, bridges and control ports; a tick-by-tick simulation at the game's rates (flow per belt, clogs, power coverage, gas atmospheres, activators); the terrain of the eight AIC areas over the official map; diagnostics, circuit view, resource caps and an EndSync code to share a layout. The game's own blueprint codes cannot be read outside the game.

Calculators (Meta)

• Damage — operator, build and enemy: buffs, inflictions and reactions, resistances, dupe keystones M0–M5. Calibrated against frame data.
• Tier list — computed by the same engine: in-team burst with standard teams.
• Rotation — frame-accurate skill sequences with the shared skill bar, ult energy and skill gating; guide rotations preloaded; share codes.
• Optimizer — which stat to raise first, weapon and gear-set rankings for your build, dupe and essence curves.
• States — what a team applies, forces and consumes; buffs, debuffs, talents and kit keywords linked to the glossary.
• Compare, Reactions and Buffs guide — two builds side by side; reactions and physical states by the numbers; every buff type with its math.

Roster and teams

• Roster — 32 operators with level, potential, skills, weapon and gear; named builds per operator, shared by Damage, Compare and Rotation; what your loadout is missing. Medal album (141) as a checklist.
• Premade teams — 63 comps in 10 guides with videos, rotations, builds, ranks and pitfalls; saved to My teams in one click with a checklist of what is missing.
• Custom guide and Team builder — write your own guide in the same format, or put four operators together with weapon and set and save them as a team or as builds.
• Home — My teams and their checklists, a pinned goal, daily checklist, weekly agenda, gift codes, and what changed since your last visit.

Wiki, events and progression

• Wiki — operators with skill progression, talents and potentials; 79 weapons; 167 gear pieces in 18 sets; 92 enemies with per-level stats and resistances; gift preferences; a 116-term glossary of mechanics and operator kits.
• Events and news — version timeline, banners, patch notes, 8 event guides and the version calendar.
• Farming (essence planner), Artificing (gear-upgrade optimizer with costs and pity), Bases (AIC codes), Links.

General

• Nine themes, dark and light; interface scale; search palette (Ctrl+K) and shortcuts.
• No account, no cloud; backup export and import; share codes for rotations and layouts.
• Game data updates automatically through a data pack, with a restart offered when new data arrives.

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