AI Writer vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AI Writer
Read full descriptionHide full description
Write For Me is the fastest way to draft, rewrite, and polish anything you type β powered entirely by Apple Intelligence on your device. No sign-ups. No subscriptions. No data ever leaves your iPhone or iPad. Whether you're firing off a quick reply, crafting a professional email, or shaping an essay, Write For Me gives you a thoughtful first draft in seconds and lets you refine it with a tap. β WHAT YOU CAN DO β β’ Draft emails, essays, tweets, replies, and messages from a single prompt β’ Rewrite, shorten, expand, summarize, or improve any text instantly β’ Choose from 8 writing tones: Professional, Friendly, Funny, Formal, Persuasive, Casual, Empathetic, and Confident β’ Dictate your prompt with on-device speech recognition β’ Listen to results read aloud with natural text-to-speech β’ Save every generation to your private history β’ Star your favorites for quick access β’ Edit results inline and regenerate with a tap β’ Copy or share output anywhere β WHY WRITE FOR ME β 100% PRIVATE Every prompt and every response stays on your device. There are no servers, no analytics, no tracking. Your words are yours alone. NO SUBSCRIPTIONS Pay nothing. Ever. No paywalls, no token limits, no monthly fees. Apple Intelligence runs locally, so there's nothing to charge for. WORKS OFFLINE Airplane mode, subway, remote cabin β Write For Me keeps working because it doesn't need the internet. DESIGNED FOR APPLE Built natively in SwiftUI with Liquid Glass design, Dynamic Type, full Dark Mode, haptic feedback, and adaptive layouts for iPhone and iPad. Split-view multitasking is fully supported on iPad. FAST AND FOCUSED Streaming output appears as it's generated. Suggested task chips and one-tap tone presets get you from blank page to polished draft without friction. β HOW IT WORKS β Type or dictate what you want to write Pick a task (Email, Essay, Tweet, Reply, Message, or Freeform) Choose a tone Tap Generate β your draft streams in instantly Refine with Rewrite, Shorten, Expand, or Improve Copy, share, or save to favorites β REQUIREMENTS β Write For Me uses Apple Intelligence and requires a compatible device: β’ iPhone 15 Pro, iPhone 15 Pro Max, or any iPhone 16 model β’ iPad with M1 chip or later β’ iOS 26.2 or iPadOS 26.2 (or later) β’ Apple Intelligence enabled in Settings β PRIVACY PROMISE β We don't collect your data because we don't have servers. There are no accounts to create, no logins, no cloud syncing. Your writing history lives only in the app, on your device, and you can delete any entry at any time. Stop pasting your private thoughts into a chatbot. Start writing with an assistant that respects your privacy by design. Download Write For Me and rediscover the joy of writing with a little help β privately. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ring Sizer
Read full descriptionHide full description
Estimate your ring size with your iPhone camera and a standard-sized card. Measure an existing ring or a finger, check the detected edges, and compare sizes across international charts. MEASURE WITH A PHOTO Place a ring on or beside an 85.60 Γ 53.98 mm card on a flat surface. For fingers, place the card above a relaxed, spread-out hand. Use the level guide, take a photo, or choose an existing picture. The app uses the card as a scale reference and corrects perspective in the cardβs plane. CHECK THE FIT Review the card corners and ringβs inner edge with a magnifying view. Move the ring circleβs center or radius to refine the result. For fingers, slide the measurement along the detected finger to check a wider section or knuckle. CONVERT RING SIZES Compare 15 sizing systems, including US/Canada, UK/Australia, European circumference, Japan, Hong Kong, mainland China, Taiwan, India, Brazil, South Korea, Argentina and Chile. Choose your country, preferred size system, and millimeters or inches. Published charts vary, so check your jewelerβs chart before ordering. KEEP YOUR MEASUREMENTS Save results, photos and adjustments in History. Reopen a measurement to review it, add a note, or compare sizes. Your measurement folders are also available in the Files app. Delete one measurement or clear them all in Settings. ON-DEVICE PROCESSING Measurement photos are processed on your iPhone. No account, advertising or tracking is required. The app does not upload measurement photos to a server. iOS backups and files you choose to share are controlled by you. BEFORE YOU ORDER Results are estimates, not a guaranteed fit. Lighting, camera angle, object height and card placement can affect accuracy. Finger circumference is estimated from visible width; fingers are not perfect circles. Scan a few times and confirm with a physical ring sizer or jeweler before purchasing. Terms of Use: https://www.x-tech.io/apps/ringsizer/terms Privacy Policy: https://www.x-tech.io/apps/ringsizer/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Ring Sizer at none against AI Writer's 3. Ring Sizer also leads on iOS requirement (18.0 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. AI Writer sells 3 in-app purchases, starting at $0.99 per 7 days. Ring Sizer asks for nothing beyond the download.
| Parameter | AI Writer | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | β |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 26.2 | 18.0 β better |
| Further details β not scored | ||
| Size | 17 MB | 84 MB |
| Age rating | +4 | 4+ |
| Developer | Farouk Nasser | Xanthous Tech LLC |
In-app purchases
AI Writer
- Premium Weekly$0.997 Days
- Premium Monthly$2.991 Month
- Premium Yearly$19.991 Year
Ring Sizer
No in-app purchases









