App Overview

Textkiller - Spam Text Blocker icon

Textkiller - Spam Text Blocker

Mosaic S.r.l. · Utilities

eliminate 99% of spam text messages with textkiller, and live spam-text free®!

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.3
13,020 ratings · Top 30%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included18 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Textkiller - Spam Text Blocker: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement machine learning to improve spam detection.

Assumption to check: Inability to block certain spam texts due to missed patterns

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to customize notification settings and blocking criteria.

Assumption to check: Limited customization options for users

Validate with people who use this workflow before building.

Hypothesis 3

Provide better onboarding and tooltips to guide users.

Assumption to check: Users may not realize they need to manually unblock numbers

Validate with people who use this workflow before building.

Hypothesis 4

Optimize data storage and retrieval for faster access.

Assumption to check: Performance issues with large blocked lists

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

eliminate 99% of spam text messages with textkiller, and live spam-text free®! textkiller is the new spam text blocking app that's creating a world without spam texts. with textkiller, you're instantly protected from more than 100,000,000 known phone scams, and counting! textkiller's intuitive and easy-to-use features ensure you get all the texts you want, and none that you don't. textkiller's innovative text blocking technology has already been featured by the new york times, nbc, wired, engadget, vice, and many other publications. here are some of textkiller's highly-reviewed features: eliminate 99% of spam texts automatically with textkiller, you're instantly protected from more than 100,000,000 known phone scams - and our global block list is updated every minute. textkiller's predictive sms blocking algorithm is also able to determine if an incoming text is spam in less than 0.01 second, keeping you safe from emerging spam texts too! control who can text you get good texts only. textkiller's block and allow lists ensure the text messages you want are never blocked, removing all distractions from unwanted and dangerous spam text messages. customize your text blocking only textkiller gives you fully customizable text blocking to ensure you block spam texts on your terms. other apps only let you block individual phone numbers or text messages, but with textkiller's keyword-based filtering, email address blocking, and phone number range blocking options, you can fully control how we block your spam texts. train textkiller to get smarter report spam texts to textkiller to help our algorithm get more precise at blocking your spam texts, and ensuring you always get the texts you want. reporting spam texts also helps to protect other textkiller users from receiving the same scam! turn on the extreme blocking function, and textkiller will filter all messages coming from senders outside of your contact list. keep your money safe from losses to fraud textkiller prevented 800 usd per year in losses to text scams, according to data reported by the federal trade commission. privacy-first text blocking textkiller's patented text blocking algorithm immediately removes any identifying information before making a decision on blocking a text. your privacy, and personal text messages are always safe with us. relax and live life spam-text-free® in our busy lives, spam texts are an unnecessary and annoying distraction. textkiller cleans up your imessage inbox from annoying spam or telemarketing texts so you can have a bit of peace back in your day. that's what it means to live life spam-text-free. here's what your spam-text-free life looks like: - no distractions: you can trust when a text notification goes off, it's a message that's meant for you. - total control: has your number fallen into the hands of annoying telemarketers or marketing lists? with textkiller, you decide who can or can't text you - without having to deal with the hassle of trying to unsubscribe. - zen: while textkiller can't eliminate all of your daily distractions, we do our best to give you one slice of distraction-free paradise by ridding your phone of annoying spam. built by people who hate robocalls, spam texts, and respect your privacy, textkiller will help you take control of who can and can’t text you. we're empowering everyone with a smartphone to create a spam-text-free world. but, we can't do it without you. try textkiller free today! textkiller is free to download. a subscription is required to use the product. once your trial ends, your subscription will automatically renew. you can cancel at any time. live life spam-text-free®! terms of service: https://www.teltech.co/terms.html privacy policy: https://www.teltech.co/privacy.html california privacy notice: https://teltech.co/privacy.html#section-8 *** according to the ftc.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Navigation
Zustand
Expo Notifications
Async Storage
React Native
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.