Whatool vs Chat Keeper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Whatool
Search your WhatsApp, Line, and Viber chats with advanced filters for date, sender, and message content. Keep your messages safe with on-device processing and create backup copies. Merge multiple conversations for a unified search experience.
- Advanced chat search
- Filter by date, sender, content
- On-device data processing
- Merge multiple conversations
- Create message backups
- Compatible with WhatsApp, Line, Viber
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Whatool turns an exported chat into something you can read and search, on your own device. In WhatsApp choose Export chat, then pick Whatool from the share sheet — it sits among the actions, in the bottom row. The .txt file and the .zip WhatsApp produces today are both read, and a chat file already on your device opens just as well. The whole history then becomes searchable: by word, by sender, by date. Jump to the day you are looking for instead of thumbing through years of messages. MERGE puts several conversations into one timeline, so a story told across three chats reads as one. Everything happens on your iPhone or iPad. Your messages are read and stored on the device, nothing is sent to a server, and Whatool works with no connection at all. Whatool also keeps what a messaging app does not. A phone you no longer own, a chat you cleared, someone you have lost: an export opened in Whatool stays readable years later. LINE exports are read too. Free, with optional purchases to remove the ads and lift the free limits. ----------------------------------- Disclaimer: app created by Luca Rubin. WhatsApp Messenger, LINE, their names, registered trademarks and all other aspects of these applications are trademarks registered and owned by their relative legal owners. If you believe there has been an infringement of legal owner rights, please send us an email including all of the relative details to whatool@lucarubin.com
Chat Keeper
Securely back up your WhatsApp conversations and analyze their content. This utility provides insights into message and media counts, along with basic chat statistics. It offers passcode or biometric protection for your imported chats.
- Import WhatsApp chats
- Passcode/biometric chat protection
- Message and media count
- Basic chat statistics
- Copy & paste chats
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Chat Keeper is a private archive for your WhatsApp conversations. Import a chat once and it is yours to keep — readable, searchable and safe on your own device, long after WhatsApp has moved on. Your chats stay on this device. They are never uploaded. ► KEEP CONVERSATIONS THAT MATTER Export a chat from WhatsApp, hand it to Chat Keeper, and it becomes a permanent, readable archive — messages, photos, videos, voice notes and documents, laid out the way you remember them. A step-by-step guide walks you through getting the file out of WhatsApp, for a single chat or a group. ► READS EXPORTS FROM ANY PHONE, IN ANY LANGUAGE It does not matter what language your phone is set to, whether the export came from an iPhone or an Android, or how old it is. If a chat would not import into an older version of Chat Keeper, try it again. ► READ IT LIKE A CHAT, NOT A TEXT FILE Bubbles, dates, and every participant in their own color. Bold, italic and struck-through text appears the way it was typed. Tap a photo to open it, play a voice note where it was sent. ► FIND ANYTHING Search inside a conversation and jump straight to the message. Browse everything that was ever sent as Media, Links or Documents. Open a chat's details to see when it started, how many messages it holds and who wrote most of them. ► BACK IT UP, TAKE IT WITH YOU Save your whole archive — every chat and every attachment — as a single file, and read it back onto a new phone. Keep that file wherever you like: on a computer, on a drive, in iCloud Drive. Protect it with a passphrase if you want to. ► EXPORT A SINGLE CHAT Share one conversation as a web page that opens in any browser with its photos and voice notes intact, as a PDF for printing, or as plain text small enough to email. Yours to keep, readable without this app. ► SEE THE SHAPE OF YOUR CONVERSATIONS When you talk, how quickly you reply, who gets in touch first, your longest streak and your longest silence, which emoji you actually use, and what was sent. ► LOCKED, AND OFFLINE BY DESIGN Lock the app with a passcode, and unlock it with Face ID or Touch ID. There is no account and no sync, and Chat Keeper never uploads your conversations: they are on your phone, and a backup file goes only where you put it. ► WORTH KNOWING BEFORE YOU BUY Chat Keeper reads the chat exports WhatsApp produces. It is a one-way street: a conversation you archive here can be read, searched, printed and exported, but it cannot be put back into WhatsApp, and no app can do that. It archives what you export — it does not recover messages that are already gone. ► SUPPORT If you have a question or a request, send us an e-mail. We answer, and if something is broken we fix it. --- If you find Chat Keeper useful, please tell a friend and leave a rating on the App Store. Thank you.
Screenshots
Verdict
The clearest difference is in-app purchases: Chat Keeper at none against Whatool's 5. Chat Keeper also leads on ads (none vs shown) and review sentiment (56% vs 24%). Whatool's advantage is rating (4.3 vs 4.1). On price, ratings volume, update cadence and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Whatool sells 5 one-off in-app purchases. Chat Keeper asks for nothing beyond the download.
Whatool holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 70 and 59 respectively. Written reviews complicate that: 24% of Whatool's written reviews are positive against 56% of Chat Keeper's, so the app with the better star average is not the one people write more warmly about.
Whatool ships an update every 3 months, Chat Keeper every 2 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.
| Parameter | Whatool | Chat Keeper |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (70 ratings) — better | 4.1 (59 ratings) |
| Positive reviews | 24.5% of reviews | 56.3% of reviews — better |
| Number of ratings | 70 — better | 59 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 15 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Luca Rubin | RBT Digital LLC |
Customer experience
Whatool
Chat Keeper
In-app purchases
Whatool
- Unlimited conversations$0.99
- Remove adverts$1.99
- Merge up to 5 conversations$1.99
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- Unlimited merging$3.99
- Unlock all features$5.99
Chat Keeper
No in-app purchases





