An App to Track Messages With Your Ex (Without Them Joining)

Your ex texts at midnight, agrees to a swap on Monday and denies it by Friday, and refuses to touch a co-parenting app. You need an app to track messages with your ex, one that keeps everything in order and doesn’t depend on them signing up for anything. The good news: tracking your own conversations is something you can do entirely on your side.

This guide shows the manual way first, completely, so you can do it for free tonight: how to preserve your messages, export them from an iPhone, Android or WhatsApp, and build a message log by hand. Then it shows the faster way, with a tool that does the sorting, numbering and formatting for you.

What should an app to track messages with your ex actually do?

Whether you use an app or do it by hand, tracking means three jobs: preserving every message so nothing disappears, getting the messages off your phone in a complete form, and organizing them so you or a judge can find what matters.

A useful record of your messages with your ex has these qualities:

• Complete. Both sides of the conversation, with nothing cut out of the middle.
• Dated. A date, time and sender on every message, not just every screen.
• Unaltered. No edits, no cropping that changes meaning, and the originals kept.
• Findable. You can pull up “all messages about summer camp” or “everything from June” quickly.
• Private. Stored somewhere your ex can’t reach.

The hard way, step 1: preserve every message

Before you organize anything, make sure nothing more gets lost. These settings take a few minutes and protect everything that follows.

• iPhone. In your iPhone’s Messages settings, set Keep Messages to Forever. If Messages in iCloud is on, remember that deleting a message on one device deletes it on your other devices too.
• Android. Check your messaging app’s settings for any option that deletes old messages automatically, and turn it off.
• WhatsApp. Check whether disappearing messages are on in the chat. Either person can turn them on, so note when that happens and save the chat before messages vanish.
• Back up your phone. A regular phone backup is a safety net if your phone is lost or broken.
• Never delete. Not their messages and not yours, even the ones you regret.

The hard way, step 2: export the conversation

An export copies the whole conversation into a file, with a date and time for each message. That’s far more complete than screenshots, and it’s the raw material for any log.

• iPhone texts and iMessages. iPhones don’t have a built-in “export conversation” button. Parents typically use a computer tool such as iMazing, which can export a conversation to a spreadsheet (CSV) file. See how to export iPhone text messages for court.
• Android texts. The SMS Backup & Restore app saves your texts to an XML backup file. See how to export Android text messages for court.
• WhatsApp. Open the chat and use Export chat to save it as a text (.txt) file, with or without media. WhatsApp may limit how much one export includes, so check that it reaches back far enough. See WhatsApp messages as evidence.
• Screenshots for key moments. Capture the contact’s name and number, scroll so a date header shows, and overlap each screenshot with the last.

The hard way, step 3: build a message log by hand

A message log is a table with one row per message. It’s the most readable way to track texts with your ex for court, and you can build it in any spreadsheet program.

1. Set up columns. Message number, date, time, sender, channel (text, WhatsApp, email), the exact message text, an issue tag and a notes column.
2. Bring in the data. An iPhone CSV opens in a spreadsheet directly. A WhatsApp .txt needs splitting into date, time, sender and text, and its date format differs between phones. An Android XML backup is built for restoring, not reading, so turning it into rows takes extra work.
3. Clean it up. Long messages with line breaks often split across rows, and emoji or photos may show up as odd characters or placeholders. Fix these by hand.
4. Merge channels. If you talk by text and WhatsApp, combine both into one sheet and sort by date and time. Watch for time zones if either of you traveled.
5. Number every message. Once sorted, number each row in order so you can point to “message 412” instead of “somewhere in March.”
6. Tag issues. Mark rows by topic, like “pickup times” or “medical,” then filter to build smaller logs for each point you need to make.
7. Format and print. Add page numbers, repeat the header row on every page, set the date range in the title, and save as a PDF.

Be honest with yourself about the time this takes. A few weeks of messages is an evening’s work. A year of daily texting across two apps can take several evenings, and every new batch of messages means re-sorting and renumbering. Our guide on how to make a text message log for court goes deeper on formatting.

The easy way: let Message Extractor do the busywork

You still need the export files from step 2. After that, a tool can do steps 3 through 7 for you, and your ex never sees or joins anything.

1. Upload your exports. Message Extractor imports iPhone exports from iMazing and similar tools (CSV or spreadsheet), Android SMS Backup & Restore XML files and WhatsApp .txt exports. It detects the format for you.
2. Get one timeline. Messages from every source land in one chronological archive, with the sender, timestamp and channel on each message.
3. Filter. Narrow it to a date range and a participant, such as “just June, just the co-parent.”
4. Build the PDF. You get a paginated PDF log with every message Bates-numbered (MSG-00001 and on), an index page, a SHA-256 digest of the log, and a generated authentication declaration template for you to complete.
5. Search and connect. Your messages also become searchable evidence and appear on your case timeline next to everything else.

The difference is mostly time: the sorting, merging and numbering happen in minutes, not a weekend, and adding next month’s messages doesn’t mean starting over. The output is a record, not a verdict; whether and how it’s used is up to you, your lawyer if you have one, and the court.

Try Message Extractor free for 14 days14 days of everything free · no credit card

Or get one court-ready message log for $39, no subscriptionOne-time $39 · no subscription

What if a court ordered a co-parenting app?

Then keep using it. If your custody order names a specific app, communicate through it until the order is changed or allows another method, even if your ex keeps texting you instead.

The ordered app keeps its own shared record of what’s sent there, which is its main value. Your job is to track everything that happens outside it: texts, WhatsApp messages and emails your ex sends anyway. Export and log those the same way, and keep a dated note each time a conversation moves off the app. A licensed attorney where you live can tell you how your order treats messages sent outside the app.

What tracking mistakes weaken your record?

Most mistakes come from trying to make the record look better instead of keeping it complete.

• Saving only their side. Without your replies, messages lose context and the log looks selective.
• Editing or cropping. Even small changes can raise questions about everything else.
• Deleting your own bad moments. Gaps are noticeable. Keep everything and talk to a lawyer about how to handle a message you regret.
• Accessing their devices or accounts. Never log into your ex’s phone, email or cloud accounts, and never install tracking software. Track only conversations you’re part of.
• Recording calls without checking the law. Consent laws vary by state, and some require everyone on the call to agree. Check your local law first.