Comparison

Whatool vs Chatstasy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Whatool

This utility app allows you to read and search exported chat histories from messaging apps directly on your device. It supports searching by word, sender, or date, and can merge multiple conversations into a single timeline. All processing is done locally, ensuring your data remains private.

Highlights
  • Search exported chat histories
  • Filter by word, sender, or date
  • Merge multiple conversations
  • Local data processing on device
  • Read old or cleared chats
  • Supports LINE exports
Features
Read full description

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 registered trademarks of their respective owners. If you believe your rights have been infringed, please email us with all the relevant details at whatool@lucarubin.com

About

Chatstasy

This app streamlines smartphone communication with customizable buttons for quick calls and texts. It offers features like urgent calls, voicemails without ringing, and location sharing to enhance user interaction and safety.

Highlights
  • Customizable chat buttons for calls/texts
  • Urgent call feature
  • Voicemail without ringing
  • Local time and location sharing
  • Emergency call button
  • Cloud backup for contacts
Features
Read full description

Chatstasy is a feature-rich picture-button based dialer designed to enhance your Smartphone chatting experience. This app is loaded with features you wish you had! Transforms your smartphone into a communication powerhouse! • Create individual or group chat buttons for calling or texting – ‘Chatting with friends and family is just a tap away!’ • Push an appropriate image for your chat button on other’s phone that matches your Avatars (Friends, Family, Professional, ...) • Place an urgent call to someone – ‘No need to keep calling until they pickup’ • No Ring VM – ‘Elegantly leave a voice mail without disturbing others’ • Show your local time to others – ‘Reduce calls when you are asleep in a foreign land!’ • Show your current location – ‘So your loved ones know where you are at time of need’ • Show you are on Do-Not-Disturb mode – ‘Reduces unnecessary calls when you are busy’ • Show you are on Airplane mode – ‘So others know you can’t chat with them’ • Number change with auto update – ‘Elegantly change your number to notify the selected folks’ • Share Chat Buttons with others – ‘No more giving missed calls to exchange numbers!’ • Call an Ambulance –Simply tap the red Emergency Call button to summon the local ambulance service anywhere in the world. • Extra-large dial-pad for easy viewing of text. Gently swipe to change from number based to text-based dialing. • Create and save custom messages in any language to be sent later • Keep your contacts safe with cloud backup • Tag a contact as an emergency contact so anyone can notify them in case of an emergency We spent an enormous amount of time to bring this app to you. Please download and enjoy the app. If you like it, please give a positive comment and recommend it to others. A Smart Way to Chat on a Smartphone!

Screenshots

Whatool4 screens
Chatstasy4 screens

Verdict

The call

The clearest difference is review sentiment: Chatstasy at 100% against Whatool's 24%. Chatstasy also leads on rating (4.9 vs 4.3) and in-app purchases (none vs 5). Whatool's advantage is ratings volume (70 vs 15). On price, update cadence and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Whatool sells 5 one-off in-app purchases. Chatstasy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chatstasy holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 70 and 15 respectively. Written reviews point the same way: 24% of Whatool's written reviews are positive against 100% of Chatstasy's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Whatool versus Chatstasy: the parameters behind the verdict, then further details
ParameterWhatoolChatstasy
PriceFreeFree
Rating4.3 (70 ratings)4.9 (15 ratings) — better
Positive reviews24.5% of reviews100.0% of reviews — better
Number of ratings70 — better15
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size24 MB62 MB
Age rating4+4+
DeveloperLuca RubinCHATSTASY, LLC

Customer experience

Whatool

All ratings70 ratings
Positive82.9%
Neutral2.9%
Negative14.3%
Written reviews49 reviews
Positive24.5%
Neutral0.0%
Negative75.5%

Chatstasy

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Whatool

One-time5
  • Unlimited conversations$0.99
  • Remove adverts$1.99
  • Merge up to 5 conversations$1.99
Show 2 more
  • Unlimited merging$3.99
  • Unlock all features$5.99
None

Chatstasy

No in-app purchases

Questions

Is Whatool free?
Whatool is free to download, with in-app purchases available.
Is Chatstasy free?
Chatstasy is free to download, with no in-app purchases.
Which has better reviews, Whatool or Chatstasy?
Chatstasy is rated higher. Whatool averages 4.3 out of 5 from 70 ratings, while Chatstasy averages 4.9 from 15 ratings.
Do Whatool or Chatstasy have ads?
Whatool shows ads; Chatstasy does not.
Which is updated more often, Whatool or Chatstasy?
Whatool ships an update every 3 months, and Chatstasy every 3 months. Most recently, Whatool was updated on November 11, 2026 and Chatstasy on November 2, 2026.

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