Comparison

Readefine vs AI Piper

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

Head to head
About

Readefine

This app rewrites web content to suit your needs, offering AI-powered summarization, translation, tone changes, and simplification. It also includes a hyper-speed dictionary and unit converter.

Highlights
  • AI-powered rewording
  • Summarize web content
  • Translate into multiple languages
  • Adjust text tone and complexity
  • Hyper-speed dictionary
  • Unit and currency conversion
Features
Read full description

Readefine rewords the internet. -Dictionaries at Hyper-speed Readefine's advanced dictionary engine lets you automatically reword thousands of words and phrases. Use your own dictionary, or opt-in to our community created dictionaries, and Readefine will reword the dictionary items faster than you can say "Wait, what does that word mean?" -Convert anything from temperatures to distances to currencies -AI-Powered Rewording Magic Ever wish the internet spoke YOUR language? With our AI-driven rewording tool, it kind of does. Whether you're translating, summarizing, or just browsing, Readefine shapes the web to suit you. Readefine AI allows you to: * Simplify for Children, Average Adults, and ESL * Summarize * Complexify * Change Tones to make text sound more professional, friendly, or even sarcastic * Translate into many languages, including Spanish, Greek, Russian, and Latin * Reword as a pirate, a mob boss, or Yoda * Convert units of measurement, like Celsius to Fahrenheit With an upgraded subscription, you can change the AI prompts to reword the internet however you'd like! Try it today! Readefine Pro Subscription: Monthly: $10.00 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of use: https://app.readefine.ai?modal=terms Privacy policy: https://app.readefine.ai?modal=privacy-policy

About

AI Piper

Read full description

AI•Piper is convenient, powerful way to integrate AI in Day-2-Day use cases. It packs a powerful custom keyboard, an app where all your ai queries can be generated and saved and a share extension to query content within url. ==the Keyboard== COMFORT of KEYBOARD - anywhere, everywhere With our powerful keyboard, you can easily ask GPT-3 AI right from any input field within any app. Whether you're composing an email, writing a report, or drafting a social media post, AI Piper makes it easy to get the information you need or the text you want. You can also refer to any existing query from within keyboard and insert its result into input field. - "Write a tagline for my photo enjoying the European summer sun at Amalfi coast with my fiancé". - "Create an email enquiring for quotation for trip to Andes" - "Create a tweet on benefits of time-blocking for reducing stress and improving productivity” +++++++++++++++ PS: In order for Keyboard to work, enable it from iOS Settings->Keyboard->Keyboards. Enable "Allow Full Access" after enabling the "aikbd-aipiper keyboard" +++++++++++++++ ==the APP== CREATE, COLLECT, REFER your QUERIES in APP AI•Piper app gives you the power to ask amazing GPT-3 AI any question or ask it to create any text, posts, tweets, paragraphs, taglines, and more.  Get instant and accurate answers to any question you have, or generate creative and unique text with just a few taps.  • You can save these queries for future reference. • Visualize queries against a calendar to analyze how you use AI daily. • Get Information on total tokens used in query ==the SHARE EXTENSION== ANALYZE or SEED content of any webpage or link in our SHARE EXTENSION AI•Piper brings in ability to use text content within an article or post as seed in your prompt.  For example, if you are reading an article, you can as AI•Piper Share extension to:  • “summarize this article point by point", or, • "create a tweet based on text contents of article", or, • “provide a famous quote that is aligned to this article", or, • "create debate points against the points in webpage", etc. AI queries can be saved for later use from within the app or the keyboard. ==openai.com api key== Use with your existing openai or chatgpt account AI•Piper allows user to use their existing openai or chatgpt account, by using its api key. You will use your own free and purchased tokens available in your openai account. - AI•Piper doesn’t buy and sell openai tokens. - User can add their openai api key in apps settings page to access services of GPT-3 == What’s included in subscription == After trial period, AI•Piper requires you to purchase monthly subscription to continue using the keyboard, app and share extension. == What’s not included in subscription == App Subscription does not include any tokens for running openai gpt-3/3.5 queries. User has to seperately setup and maintain paid account at openai.com and purchase ai tokens as per their requirements. Typically openai provides $5 worth of free tokens upon creation of chatgpt/openai account valid for first 3 months. We believe that access to AI engines such as gpt-3 and its future iterations, will become a “utility" with applications everywhere. Hence, it makes sense that users maintain a single account where they buy tokens (i.e., through openai.com) and use it in any apps. This will be a more practical model versus, each developer charging for ai tokens and adding their own margins over something that appears to have properties of a utility. ======= Whether you're a student, a professional, or just someone who wants to get more done in less time, AI•Piper is the ultimate tool for anyone who wants to harness the power of GPT-3 AI. Download it now and experience the future of AI-powered assistance! Terms and Conditions (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://ai.alpha-piper.com/support/privacy

Screenshots

Readefine4 screens
AI Piper4 screens

Verdict

The call

The clearest difference is update cadence: Readefine at every 3 weeks against AI Piper's every 2 months. On price, ads, in-app purchases 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. Readefine sells 1 in-app purchase, starting at $10.00 per month and AI Piper sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Readefine ships an update every 3 weeks, AI Piper every 2 months. The most recent releases landed on October 12, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 9 level
Readefine versus AI Piper: the parameters behind the verdict, then further details
ParameterReadefineAI Piper
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size9 MB4 MB
Age rating4+17+
DeveloperReadefine LLCAnkur Piparsania

In-app purchases

1 purchases

Readefine

Subscriptions1
  • Readefine AI: Pro$10.001 Month
1 purchases

AI Piper

Subscriptions1
  • Pro Subscription$4.991 Month

Questions

Is Readefine free?
Readefine is free to download, with in-app purchases available.
Is AI Piper free?
AI Piper is free to download, with in-app purchases available.
Do Readefine or AI Piper have ads?
Neither Readefine nor AI Piper shows ads.
Which is updated more often, Readefine or AI Piper?
Readefine ships an update every 3 weeks, and AI Piper every 2 months. Most recently, Readefine was updated on October 12, 2026 and AI Piper on October 30, 2026.

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