s3_key.
"android" or "ios".{ message, app } where app includes id, name, platform, current_build (with id, name, arch, file), build_count, created_at, updated_at.
arch is auto-detected for Android builds ("arm64", "x86_64", "universal") and is always null for iOS.
| Status | Cause |
|---|---|
400 | Missing/invalid field, bad extension, or 32-bit-only Android binary. |
403 | No mobile concurrency on plan, or s3_key not owned by your company. |
409 | An app with the same name already exists for this platform. |