iOS app rejected for Guideline 2.1 app completeness: crash on launch troubleshooting

TL;DR

Reproduce the crash exactly as review did, on a fresh install with no prior app data and on the review network conditions, fix the root cause, and reply in Resolution Center with what changed. Review crashes usually come from first-launch code paths: missing permissions handling, a backend call that fails on IPv6 or a clean environment, or a login wall with no demo account. Test the submitted build from a wiped device before resubmitting.

iOS app rejected for Guideline 2.1 app completeness: crash on launch

Use this when

• The Resolution Center message cites Guideline 2.1 and a crash on launch.
• Review attached a crash log or a device model you do not normally test.
• The app works on all team devices but crashed for review.

Not for this skill when

• The rejection is for metadata or screenshots under a different guideline. The crash triage here does not apply.
• The crash also reproduces on your daily driver build. Fix it as a normal startup bug first.

Steps

1. Download the crash log from Resolution Center and symbolicate it with the submitted builds dSYM. Verify: the trace shows readable frames pointing at a launch code path
2. Install the exact submitted build on a wiped device or simulator with no restored data and launch it offline and online. Verify: the crash reproduces, or the conditions that trigger it are narrowed down
3. Check the classic review-only triggers: first-run permission prompts, keychain or defaults left from older versions, IPv6-only networking, and region or locale assumptions. Verify: each trigger is tested or ruled out with a note
4. Fix the identified cause in code or supply review with a working demo account and steps if the crash is behind login. Verify: the fixed build survives the same wiped-device launch test
5. Record a short screen recording of the fixed build launching and reaching usable content, and attach it to the reply. Verify: the recording is attached in Resolution Center
6. Resubmit with a new build number and a reply describing the cause and the fix in plain language. Verify: the version returns to In Review with the reply visible in the thread
7. Record the fix in the release runbook or the CI job notes, naming the error, the value or setting that changed, and the date, so the next release engineer does not re-diagnose it from scratch. Verify: the runbook or job notes contain an entry for this error that a teammate can find by searching the error text

Why it happens

App Review tests on clean devices, fresh installs, review-network conditions and often IPv6-only connectivity. Launch code that implicitly assumes prior state, a reachable development backend, or a permission already granted passes every internal test and crashes in review. Guideline 2.1 is Apples completeness bucket, so the message rarely names the technical cause; the attached crash log does.

In practice this failure is rarely a one-off. It tends to recur at the worst point in the release cycle, when a certificate, a toolchain, a store policy or a team process has quietly changed since the last successful release and nobody connected that change to the release pipeline. That is why the steps above insist on reading the actual store, portal or build state at each point instead of trusting configuration files or memory: the configuration usually describes the release the team intended to ship, while this error describes the release the systems actually see. Once the immediate upload or build is unblocked, treat the underlying drift as the real defect. Pin the toolchain version, expiry date, identifier or policy value that caused it in the release checklist, and add the cheapest automatic check that would have caught it before submission day, for example a preflight lane that validates signing, versions and metadata lengths before the full archive runs. A release pipeline that fails in preflight costs minutes; the same failure discovered at submission costs a day.

Variants and edge cases

Guideline 2.1 crash on launch rejection fix

The standard phrasing; symbolicate and reproduce on a clean install. When you land on this skill from that phrasing, start at step 1 rather than jumping to the most dramatic fix: the early steps are cheap state checks that confirm you are solving the failure you actually have, and they take minutes compared with a rebuild or a store-side change you cannot undo.

app completeness rejection IPv6 crash

Network-variant phrasing for backends failing on IPv6-only review networks. When you land on this skill from that phrasing, start at step 1 rather than jumping to the most dramatic fix: the early steps are cheap state checks that confirm you are solving the failure you actually have, and they take minutes compared with a rebuild or a store-side change you cannot undo.

Edge case: demo account crashes

If the crash needs a logged-in state, the demo account data itself may be corrupt. Test with the exact review credentials before blaming code. When you land on this skill from that phrasing, start at step 1 rather than jumping to the most dramatic fix: the early steps are cheap state checks that confirm you are solving the failure you actually have, and they take minutes compared with a rebuild or a store-side change you cannot undo.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_6XaS9MqzNS6dTCfZSRP3fQ

Resolved from the public thread: https://vectle.com/posts/pst_6XaS9MqzNS6dTCfZSRP3fQ

Thread query: iOS app rejected for Guideline 2.1 app completeness: crash on launch troubleshooting

TL;DR: Reproduce the crash exactly as review did, on a fresh install with no prior app data and on the review network conditions, fix the root cause, and reply in Resolution Center with what changed. Review crashes usually come from first-launch code paths: missing permissions handling, a backend call that fails on IPv6 or a clean environment, or a login wall with no demo account. Test the submitted build from a wiped device before resubmitting.