RD Quantum vs IamWriter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RD Quantum
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NOTE: You must have an xCAS user account to be able to use this app. RD Quantum is a mobile app for xCAS users. Download all license and permit data to your phone, use the GPS and compass to navigate to the area. Create notes to report back to xCAS system. Users can also see notes stored under each license.
IamWriter
This AI-powered writing assistant helps improve text quality and efficiency for various tasks. It offers multilingual support, content creation, and tools for grammar checking, summarization, and personalized prompts.
- AI-powered writing improvement
- Multilingual text generation and translation
- Content creation for social media, emails, and documents
- Summarization of text and YouTube videos
- Real-time grammar checking and paraphrasing
- Customizable prompt generator
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Record a meeting, get a note you can act on. IamWriter listens, writes the note, and then does the follow-up work: the email, the task list, the document. Ask for anything in plain words, and it picks the right tool: your notes, your saved prompts, the web, or an image. Talk to it or type to it. Every result is saved to your account and ready on iPhone, Mac, and the web. Capture to Action: • Record Meetings: Tap record, and IamWriter transcribes the meeting into a note with a summary, action items, and decisions, filed in your notes. Recording keeps going while you use other apps, and if a call interrupts, you pick up where you left off. • Organize Notes: Keep notes in folders, search them, move them, and edit them in Markdown. Your saved notes stay readable offline, and changes sync when you are back online. • Act on Any Note: Ask AI about a note to summarize it, list the action items, draft a follow-up email, or clean up the formatting. Ask it to save details to your notes from any request. You decide whether each change is applied, or allow non-delete changes automatically. • One Request, the Right Tool: Ask in your own words. IamWriter reads your notes when they matter, runs one of your saved prompts and asks for the details it still needs, searches the web when you turn Search on, and generates an image when the task calls for one. It shows what it is doing while you wait. • Memory: Turn on Memory and IamWriter keeps lasting details from your requests, like how you like to write and what you are working on, and uses them next time. Everything it remembers is listed in Settings, where you can delete any item or forget it all. Simplified Daily Writing: • Social Media: Write posts for X, LinkedIn, Facebook, and Instagram in the tone you want, hashtags included. • Special Occasions: Birthday wishes, thank-you notes, invitations, and the replies that are hard to find words for. • Work and Academic: Business emails and replies, cover letters, paragraphs, essays, and full articles with clear structure. Powerful Writing Tools: • Multilingual: Write, translate, and summarize in many languages. Meeting notes come back in the language that was spoken. • Quick Summaries: Turn long texts, PDF files, and YouTube videos into concise summaries in the length you choose. • Grammar, Paraphrase, and Tone: Fix grammar, rewrite a passage, or change the tone of a text without changing its meaning. • Files as Context: Attach images, PDFs, or text files to a request, and every follow-up in that chat can use them. • Tailored Experience: Build your own prompts for tasks you repeat, like "Dinner suggestions" or "Weekly status update". Once saved, IamWriter can pick them up on its own when a request matches. • Conversations and History: Every result stays in History. Continue any of them as a conversation, ask for a change, or go back to an earlier version. Start free. Upgrade to Premium for unlimited generations. Speak it, note it, act on it. IamWriter turns what you say into work that is done. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: RD Quantum at none against IamWriter's 13. IamWriter's advantage is update cadence (every 10 days vs every 5 weeks). On price, ads, device support and iOS requirement 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
Both are free to download. IamWriter sells 13 in-app purchases, starting at $1.69 per 7 days. RD Quantum asks for nothing beyond the download.
RD Quantum ships an update every 5 weeks, IamWriter every 10 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | RD Quantum | IamWriter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (13 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 13 — better |
| Update frequency | Every 5 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac, Apple Watch — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 23 MB | 85 MB |
| Age rating | 4+ | 12+ |
| Developer | Stiftelsen Revenue Development | Exinor Inc. |
In-app purchases
RD Quantum
No in-app purchases
IamWriter
- Weekly$1.697 Days
- Weekly$1.997 Days
- Weekly$2.397 Days
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- Weekly$2.697 Days
- Weekly Premium$2.897 Days
- Monthly$4.991 Month
- Monthly$5.991 Month
- Monthly$6.991 Month
- Monthly$7.991 Month
- Annual$33.491 Year
- Annual$40.491 Year
- Annual$46.991 Year
- Annual$53.991 Year









