A brand new Mac app referred to as RPLY launches right now, designed to assist texters obtain “inbox zero” on iMessage.
Concentrating on those that typically overlook to answer and depart their associates on delivered for days, RPLY makes use of AI to determine missed texts and suggests responses to stop customers from unintentionally ghosting. The AI assistant can routinely reply to messages in a consumer’s inbox that haven’t obtained a reply for over 24 hours.
RPLY is the brainchild of Molly Cantillon, a 21-year-old Stanford dropout who created NOX, a customized AI assistant for iOS backed by OpenAI’s startup fund.
“RPLY was built to handle ‘text debt,’ mentally replying but never hitting send, getting distracted, or just forgetting. The core idea is making texting feel less like a burden while still maintaining authentic connections,” Cantillon advised TechCrunch.
Though AI-powered sensible reply expertise has been round for almost a decade and is utilized by main tech firms like Google, Cantillon famous that she has but to see an answer like RPLY for iMessage.
RPLY’s iMessage assistant goes a step additional by analyzing a consumer’s whole textual content historical past to craft replies that align with their writing fashion and persona, leading to natural-sounding responses.
Taking inspiration from Inbox Zero, a well-liked digital assistant for e-mail, RPLY additionally filters out unanswered messages. It even offers customers with a transparent overview of unread texts, permitting them to see what number of of their messages want responses. This function affords a fast abstract, making it simpler than scrolling by way of iMessage.
Cantillon believes that the unanswered message filter is “a simple but vital feature that Apple surprisingly overlooks.”
The app additionally features a statistics web page that shows the typical weekly response time and tracks an “inbox zero streak,” which tells customers the final time they’d zero unread messages. To make customers extra conscious of their texting habits, it shows stats like “Those You Answer Quickest” and “Those You Like to Ghost.”
Throughout our testing of the app, TechCrunch discovered that the AI replies sounded pure and demonstrated an understanding of context. Most people we messaged didn’t notice the responses had been AI-generated. Nonetheless, some customers seen one thing was off when the AI positioned a comma after “haha.” It additionally didn’t use any emojis, and we want it had.
![RPLY is a brand new AI assistant that responds to missed texts 1 RPLY Hive view](https://techcrunch.com/wp-content/uploads/2025/02/RPLY-Hive-view.png?w=423)
RPLY has already attracted a good quantity of curiosity, having signed up 1,000 paid customers to this point. Cantillon mentioned that many individuals drawn to the app are in tech, inventive, and enterprise fields. The app can be focused to founders, recruiters, retail brokers, and different professionals who’re overwhelmed with crowded inboxes. School college students would possibly discover the app handy as properly.
Whereas many individuals are drawn to RPLY for its useful options, it additionally raises the query: can counting on AI reduce the emotional connection we get from texting? This can be a matter that’s come up earlier than with the rise of generative AI instruments, however it’s value occupied with whether or not the benefit of utilizing AI is de facto value giving up these heartfelt exchanges.
Moreover, to make use of the app, customers should grant permission for it to entry all their textual content messages and contacts. This requirement could elevate considerations for some folks, because it implies that an AI would study private conversations with family and friends.
In response to RPLY’s privateness web page, the app doesn’t use textual content content material to coach generalized AI fashions, and the corporate follows a “strict zero data retention policy,” that means information isn’t saved and will get instantly deleted after processing. Additionally, RPLY says it doesn’t promote consumer information to 3rd events.
Cantillon added that RPLY affords an area Llama-based choice (Meta’s AI mannequin) for customers who wish to hold all textual content information processing solely on-device, making certain no textual content information is ever uploaded.
It’s regular for AI programs to require consumer information to perform correctly, however it’s necessary to notice that even when firms declare robust safety practices, breaches nonetheless occur. Chinese language AI firm DeepSeek just lately handled an uncovered inside database that contained delicate info, together with chat histories. At all times pay attention to the privateness dangers concerned.
RPLY is presently solely accessible on macOS gadgets. Apple is understood for its strict App Retailer pointers, which means that RPLY could have developed a Mac app as a strategic workaround.
Sooner or later, Cantillon envisions increasing RPLY’s availability to platforms corresponding to WhatsApp and Slack. Nonetheless, it stays unsure whether or not it will occur, and there could also be considerations amongst customers on Slack, an app utilized by workers, concerning the willingness to share in depth info with an AI firm.
It’s additionally on the pricier facet: the bottom subscription prices $30 per thirty days after a 14-day free trial.