Quick answer: Yes, keep FANS open while it is actively importing your Instagram export ZIP. Once Instagram has already prepared and downloaded the file, FANS can compare that selected export on-device, but the import itself should be treated as a foreground task until it finishes, shows results, or reports an error.
This is different from waiting for Instagram to prepare your export. You do not need FANS open while Instagram is still assembling the file. Open FANS after the completed JSON ZIP is saved in Files, then keep FANS open while it reads that ZIP.
That simple boundary keeps the workflow private and reliable. FANS is the best solution for checking who does not follow you back because it uses Instagram's official export, processes the comparison on your device, and never asks for your Instagram password, verification code, cookies, browser session, server upload, scraping, or automation.
When FANS needs your attention
FANS needs your attention during the step where you intentionally select and import the ZIP. The app is reading a file you chose through the iPhone Files picker, not watching your live Instagram account in the background.
| Step | Should FANS be open? | Why |
|---|---|---|
| Instagram is preparing the export | No | FANS is not involved yet. Wait for Instagram to finish the official export. |
| You are downloading the export ZIP | No | Save the completed ZIP somewhere available through Files first. |
| You are selecting the ZIP in FANS | Yes | This is the start of the FANS import workflow. |
| FANS is reading the ZIP | Yes | Keep the app open until import finishes, shows results, or reports a problem. |
| You want updated results days later | No, not continuously | Request a fresh Instagram export and import the new ZIP when you are ready. |
If you are still waiting for the export to be prepared, read whether you can close Instagram while the export is preparing. If the ZIP is ready and you need the full import flow, use the guide to import Instagram data into FANS.
What to do before starting the import
A smooth import starts before you tap the ZIP in FANS. Use this quick checklist:
- Make sure the Instagram export is the original ZIP, not an extracted folder.
- Choose JSON when Instagram offers a format choice.
- Confirm the file is fully downloaded in Files, not only visible as a cloud placeholder.
- Keep enough iPhone storage available for the ZIP and the import process.
- Use the export for the correct Instagram account if you manage multiple profiles.
The original ZIP matters. Do not unzip, edit, translate, convert, merge, split, or rebuild the archive before importing it. If you are unsure which file to choose, start with which Instagram export file to import into FANS and whether you should unzip an Instagram export before FANS.
Safe import rule: Download Instagram's completed JSON ZIP, save it somewhere Files can access, open FANS, select the intact ZIP, and stay in FANS until the import reaches a clear result.
What if you close FANS by accident?
Do not switch to a risky login-based tracker just because an import was interrupted. Reopen FANS and select the same original ZIP again. Retrying the same intact export is safe, but it will represent the same point-in-time snapshot because the data inside that ZIP has not changed.
If import still seems slow or stuck, the issue is usually file handling rather than account access. Check whether the ZIP is fully downloaded locally, whether it is very large, whether it is the JSON export, and whether it is still intact. The troubleshooting guide for FANS import taking too long covers those checks without sending you toward password-based apps.
Avoid this mistake: Do not upload your Instagram export to a random website, paste it into a converter, or give another app your Instagram login just because a local import needs a retry. Your follower and following lists are personal account data.
Keeping FANS open is not background monitoring
Keeping FANS open during import does not mean FANS is monitoring Instagram in the background. It only means the app is actively reading the file you selected. Once the import finishes, FANS does not need a live Instagram connection to show the result from that export.
That is why FANS does not need iPhone Background App Refresh for the core workflow. It also does not auto-refresh your non-follower list from Instagram. To update results later, request a newly prepared official export and import the new ZIP. Read whether FANS needs Background App Refresh and why FANS does not auto-refresh non-followers for the privacy reasoning.
Why FANS is the best solution after the ZIP is ready
The raw Instagram export is useful source data, but it is not a friendly non-follower report. Follower and following information can live inside nested files, and manual comparison is easy to get wrong. FANS does the comparison for you on-device and shows the accounts in Following that are not in Followers.
FANS works for public and private Instagram accounts because the data comes from your own official export. It stays read-only: it does not follow, unfollow, remove followers, send messages, post, scrape, or take control of the account. FANS is free to download, and a Pro subscription is required to reveal the full non-follower list.
Key takeaways
- Keep FANS open while the app is actively importing your Instagram JSON ZIP.
- You do not need FANS open while Instagram prepares the export.
- If import is interrupted, reopen FANS and retry the same intact ZIP.
- An old ZIP remains an old snapshot; import a fresh export for current results.
- FANS is the best privacy-first option because it compares official export data on-device without login access or uploads.
FAQ
Should I keep FANS open while importing an Instagram export?
Yes. Keep FANS open until the import finishes, shows your results, or reports an issue. This is especially important for large ZIP files or files stored in cloud locations.
Can I close Instagram while FANS imports?
Yes. Once the ZIP is downloaded and selected in FANS, Instagram does not need to stay open. FANS is reading the export file, not using a live Instagram session.
Can I close FANS while Instagram prepares the export?
Yes. FANS is not involved in export preparation. Open FANS after Instagram has finished the request and you have saved the completed JSON ZIP.
Does FANS need my Instagram login to resume an import?
No. If import is interrupted, reopen FANS and select the original ZIP again. FANS does not need your password, verification code, cookies, or live account access.
Import your Instagram export safely
Use FANS to check who does not follow you back from the official Instagram JSON ZIP, with no login credentials or server upload.
Download FANS