Auto-delete old chats in YOWhatsApp after 90 days

Keeping a tidy messaging history on Android phones is a constant battle, especially for people juggling work threads, family banter, and group chats about weekend sport. YOWhatsApp, one of the more popular unofficial WhatsApp builds tracked here on WhatsAppMods.org, ships with a quiet but powerful feature that lets you wipe old conversations on a timer rather than scrolling through years of memes manually.

The auto-delete option sits inside the privacy menu and works on a per-chat or blanket basis, which is handy if you share your handset with the kids or you simply want fewer embarrassing threads resurfacing when someone borrows your phone. Australian users on Telstra or Optus plans with capped mobile data will also appreciate that a leaner message archive syncs faster and chews through less bandwidth during the morning commute along the Sydney Harbour Bridge or the train lines out of Melbourne's Flinders Street.

Because the mod is a third-party APK, the setting behaves a little differently from stock WhatsApp and is sometimes tucked behind a sub-menu that doesn't exist in the official app. Once you know where to look, configuring a 90-day window is straightforward, and the same logic can be flipped on for media only if you want to keep the text but drop the videos and voice notes that hog storage.

Before you start, make sure you're running a recent build of YOWhatsApp that still receives updates, and back up anything you don't want vanishing. Modded clients can be patched or abandoned, so a local backup plus a copy on Google Drive gives you a safety net.

Finding the auto-delete settings panel

Open YOWhatsApp, tap the three-dot menu in the top-right, and choose "YO Mods" followed by "Privacy and Security." On older versions the entry is labelled "Universal Settings" instead, and on newer builds you might find it under "Fouad Mods" since the two projects share a lot of code. Scroll until you see a toggle called "Auto Delete Messages" or "Disappearing Messages Timer."

If the option is missing entirely, your APK is likely a stripped-down copy circulating on a Telegram channel, and you should grab a fresh installer from a dedicated YOWhatsApp tracker that lists verified builds. Installing the wrong fork can lead to banned numbers or chats that refuse to back up, which is the last thing you want when migrating from an iPhone or a Samsung to a new Pixel.

Choosing the 90-day window

YOWhatsApp offers a handful of preset intervals: 24 hours, 7 days, 90 days, and 180 days, plus a custom field for anything in between. Tap "90 days" and confirm the popup warning that older messages will be permanently removed from the device. The change applies the moment you exit the menu, so a quick scroll through your older threads is a good idea before you commit.

For most Aussies, ninety days strikes a sensible balance. It's long enough to keep receipts, council notices, and the inevitable group chat fallout from State of Origin, but short enough that your phone's storage doesn't fill with voice notes from your uncle in Perth. If you run a small business from your mobile, you can also set the timer to apply only to chats that aren't pinned, leaving client conversations untouched.

Letting the cleanup run quietly in the background

The timer is based on the last message in a thread, not when the chat was opened, so an old conversation you revisit for a quick lookup won't suddenly extend its life. Once a chat hits the 90-day threshold, YOWhatsApp purges it during the next app launch or scheduled background sync, depending on your battery optimisation settings.

On Android 13 and 14, the system can aggressively freeze background apps to save power, which occasionally delays the wipe. Head into Settings, Apps, YOWhatsApp, Battery, and set it to "Unrestricted" so the cleanup runs reliably. This is particularly useful for users in regional areas where signal drops in and out, since the next solid connection will trigger the sync without you having to think about it.

Pairing auto-delete with media-only retention

If you need to keep transcripts for record-keeping but want to drop the bulky photos, videos, and documents, YOWhatsApp has a secondary setting under Storage called "Delete Old Media." Pointing this at anything older than 90 days trims attachments while preserving the text bubbles, which is great for tradies sharing job-site photos from a Broome worksite or for parents archiving school group chats.

Combined with the main auto-delete timer, you can run a two-stage housekeeping routine that keeps your phone lean without nuking conversations you might still need. The settings behave predictably across Samsung, Pixel, and Oppo handsets, which covers the bulk of the Australian market, and the retention rules apply independently to each chat so you can mix and match as needed.

What happens to backups and Google Drive sync

Stock WhatsApp backs up daily to Google Drive, and YOWhatsApp follows the same cadence, which means deleted messages won't return when you restore a newer backup. The catch is that if you keep an older backup file sitting on Drive, restoring from it after enabling the 90-day timer will bring the old threads straight back.

The fix is simple: trigger a fresh backup right after you switch on auto-delete so the cloud copy reflects the trimmed archive. The same principle applies to local backups stored in the Android/media/com.whatsapp folder, which a lot of users in Australia offload to a microSD card when their internal storage starts complaining. If you sideload modded clients regularly, you can also read more about keeping your data tidy on the companion guide that covers the broader mod family.

Avoiding bans while using a modded client

WhatsApp's parent company has been cracking down on unofficial builds for years, and the ban waves often hit after a new mod release drops. Sticking to a recent version, avoiding shady clone APKs, and not broadcasting your modded status in public groups keeps your number off Meta's radar.

Some users in the bush rotate between modded and stock clients on the same number, which is risky and not recommended. If your number does get temporarily blocked, the appeal form usually clears it within 24 to 48 hours, but you'll lose any unbacked-up chats, including the very threads the auto-delete was about to wipe. Always pair the timer with a working backup habit, especially if you live somewhere with patchy coverage and rely on your phone as the primary comms tool.

Troubleshooting common wipe failures

If 90 days pass and old chats are still hanging around, the first thing to check is the timer setting itself, since toggling it on and off can reset the countdown. Next, confirm the app has storage permission and isn't running in a battery-saver whitelist that's preventing the cleanup job.

On Samsung One UI and Pixel stock Android, the path differs slightly, but the outcome is the same: the system needs to let YOWhatsApp run a background task to cull old messages. Users who have experimented with tools to manage their modded clients, such as Laguna de Contreras, sometimes find that automation apps interfere with the timer's trigger, so disable any tasker-style rule that touches the messaging database.

A handful of community wikis, including the Kopliku archive, document quirks for specific ROMs like LineageOS and GrapheneOS, which handle background work differently. Checking those threads before changing the timer saves a lot of head-scratching when the wipe doesn't happen on schedule.

If the idea of a 90-day rolling window appeals to you, head over to the site and download the latest verified YOWhatsApp build, enable the timer under Privacy and Security, and let the mod handle the housekeeping from there. Pair the setting with a solid backup routine, keep an eye on release notes for any tweaks to the auto-delete behaviour, and enjoy a lighter, tidier chat list without lifting a finger.