Book Creator vs Rock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Book Creator
This AI-powered writing assistant offers comprehensive support for all your writing needs, from generating creative stories to drafting complex articles. It leverages advanced AI chat engines to provide guidance and assistance at every stage of the writing process.
- AI-powered writing engine
- Assistance in every writing step
- Handles diverse input types
- Generates creative stories
- Drafts articles on complex topics
- Provides recommendations and advice
Read full descriptionHide full description
Writer's AI is a deeply powerful artificial intelligence writing engine. It offers a invaluable tools and processes to fulfill your needs. You can get assistance in every step of your writing. Powered by state-of-the-art artificial intelligence chat engines. This revolutionary app can handle any input you give to it. This can range from cooking recipes to a full fledged article about advanced science topics. Use the power of AI to handle your everyday tasks, ask questions, take recommendations and advices and more... Subscription service is required to use the app. Payment models for Writer's AI Subscription • Writer's AI Weekly: $2.99 per month, • Writer's AI Annually: $34.99 per year • Payment will be charged to iTunes Account at confirmation of purchase. • Account will be charged for renewal within 24-hours prior to the end of the current subscription period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period will be forfeited when the user purchases a subscription to that publication. Terms of Use: https://hiappsco.wordpress.com/2022/05/11/procam-terms-of-use/ Privacy Policy: https://hiappsco.wordpress.com/2022/05/11/procam-privacy-policy%ef%bf%bc/
Rock
This application allows users to scan and identify rocks and minerals directly from their mobile device. It provides a convenient way to learn about geological samples encountered in everyday life.
- Scan rocks and minerals
- Identify geological samples
- Mobile identification tool
- Learn about rock types
Read full descriptionHide full description
A mobile app to scan and identify rocks and minerals. https://www.rockscanner.com/terms
Screenshots
Verdict
The clearest difference is review sentiment: Rock at 86% against Book Creator's 0%. Rock also leads on monetization model (free with in-app purchases vs subscription) and rating (4.4 vs 4.0). On price, ratings volume, ads and in-app purchases 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. Book Creator sells 8 in-app purchases, starting at $4.99 per 7 days and Rock sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Rock holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 27 and 65 respectively. Written reviews point the same way: 0% of Book Creator's written reviews are positive against 86% of Rock's.
Book Creator ships an update every 5 weeks, Rock every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | Book Creator | Rock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (27 ratings) | 4.4 (65 ratings) — better |
| Positive reviews | 0.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 27 | 65 — better |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 68 MB | 87 MB |
| Age rating | 9+ | 4+ |
| Developer | Kaan Yildiz | Dovran Muhammetrustemov |
Customer experience
Book Creator
Rock
Bugs and requests
Book Creator
Not enough reviews yet to summarise bugs or requests.
Rock
Reported bugs
5 issues- App doesn't work after update
- Failed to connect
- Identified as not a rock or mineral
- Cannot identify common rocks
- Inaccurate identification of some rocks
In-app purchases
Book Creator
- Writer's AI Weekly$4.997 Days
- Writer's AI Weekly$6.997 Days
- Writer's AI Weekly3 Days trial$7.997 Days
Show 4 moreShow fewer
- AI Writer Annual Final$29.991 Year
- AI Writer Annual Return$34.991 Year
- Writer's AI Annually$39.991 Year
- Writer's AI Annually$44.991 Year
- Writer's AI Lifetime$99.99
Rock
- Access Rock-Scan pro weekly$3.997 Days
- Access Rock-Scan pro monthly$9.991 Month
- Access Rock-Scan pro yearly$59.991 Year
Questions
Is Book Creator free?
Is Rock free?
Which has better reviews, Book Creator or Rock?
Do Book Creator or Rock have ads?
Which is updated more often, Book Creator or Rock?
Other comparisons
