Comparison

AI Author vs Roll Zero

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

Head to head
About

AI Author

Transform your writing with AI by emulating the styles of over 1000 renowned authors. Easily generate books, articles, and stories, then export them as professional PDFs. Seamlessly integrate with note-taking apps like GoodNotes.

Highlights
  • Emulate 1000+ author writing styles
  • AI-powered book, article, and story writing
  • Add custom author styles
  • Convert text to professional PDF
  • Copy text to GoodNotes
  • Unlimited writing and conversions (premium)
Features
Read full description

Whether you're interested in book writing, article writing, content writing, story writing, or simply looking to add a new dimension to your writing using the power of AI, this app is the perfect tool. Looking to write like your favorite writers, or even just looking to add a new dimension to your writing? Look no further than our revolutionary new writing app! With a database of over 1000 renowned writers to choose from, you can craft written works that sound like they were penned by literary legends. And for even greater flexibility, you can add your own book writer to the app's database, making the possibilities truly endless. Using the app is incredibly easy. Simply input your text, select your desired book writer from the list, and let the app work its magic. Our expert algorithms analyze the selected book authors writing style, grammar, and tone, and apply them seamlessly to your text. The end result is a beautifully crafted piece of writing that reads as if it were written by the book writer themselves. But that's not all. The app also allows you to convert your newly written text into a professional-looking PDF document that can be easily shared with others. This feature is especially useful for those looking to share their work with colleagues, clients, or even potential publishers. With just a few clicks, your work can be transformed into a stunning PDF that is sure to impress. And for those who demand the ultimate in flexibility, the premium version of the app gives you unlimited access to the book writer database and unlimited conversions. This means you can write as much as you like, in any book writer's style, and share your work with anyone you choose. Plus, with our newest feature, you can now copy text to GoodNotes with ease. Whether you're using GoodNotes for book writing, article writing, content writing, or story writing, our app seamlessly integrates with the popular note-taking app. Simply select your desired text and copy it to GoodNotes. So why wait? Download our app today and start writing like the masters. PRICING AND TERMS "Email Writer Pro" offers a subscription for $3.99 USD per week. These prices are for customers in the United States. Pricing in other countries may vary and actual charges may be converted to your local currency depending on your country of residence. Payment will be charged to your iTunes account at confirmation of purchase. Terms of Service: https://github.com/trendyapptemplates/EmailGPT/raw/main/termsOfUse.html Privacy Policy: https://github.com/trendyapptemplates/EmailGPT/raw/main/privacyPolicy.html

About

Roll Zero

Read full description

Your camera roll does not need another complicated filing system. It needs a calm way to decide what still matters. Roll Zero turns screenshot and photo clutter into a small daily inbox. Review one item at a time, preserve why you saved it, and move on. MAKE ONE CLEAR DECISION • Keep a photo without losing its context • Add a private note or searchable tag • Set a local reminder for later • Stage an item for deletion, then review it again before anything changes FIND WHAT YOU KEPT Saved gives you a visual history of the items you decided to keep. Search your private notes, tags, filenames, and text found inside images. When an exact source link arrived through a direct share, Roll Zero preserves it. It never guesses a missing link from a screenshot. PRIVATE BY DESIGN • Photos and screenshots stay on your phone • Text recognition runs on the device • Notes, tags, searches, and reminders stay local • No account or social profile required • No advertising tracker • Nothing is deleted automatically YOU CONTROL PHOTO ACCESS Start with the built-in sample inbox, choose selected photos, or allow broader access for the recurring daily inbox. The default review focuses on screenshots; recent photos can be added in Settings. DELETE WITHOUT REGRET A delete decision first moves the item into Review to Delete. Roll Zero changes your photo library only after you confirm, and your phone may ask one final time. You can restore an item before that confirmation. ENGLISH OR SPANISH Roll Zero follows your phone language, including any per-app language choice available in system settings. English and Spanish are complete, separate experiences. Unsupported languages use English. FREE AND OPTIONAL PRO The complete decision loop is free. Roll Zero Pro removes the free decision cap, lets you choose a 10, 20, or 40-item daily review, and adds the other Pro controls shown on the in-app plan screen. Available plans, localized prices, billing periods, renewal terms, and cancellation details come directly from the App Store before purchase. Restore Purchases remains available in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://conectamedia.app/roll-zero/privacy/

Screenshots

AI Author4 screens
Roll Zero4 screens

Verdict

The call

The clearest difference is device support: AI Author at 3 against Roll Zero's 1. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AI Author sells 3 in-app purchases, starting at $2.99 per 7 days and Roll Zero sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI Author ships an update every 2 weeks, Roll Zero every 11 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
AI Author versus Roll Zero: the parameters behind the verdict, then further details
ParameterAI AuthorRoll Zero
PriceFreeFree
Rating4.6 (268 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings268 — better—
Update frequencyEvery 2 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size51 MB68 MB
Age rating4+4+
Developerfaisal khalidConecta Media LLC

In-app purchases

3 purchases

AI Author

Subscriptions3
  • WEEKLY3 Days trial$2.997 Days
  • MONTHLY$9.991 Month
  • YEARLY3 Days trial$29.991 Year
2 purchases

Roll Zero

Subscriptions2
  • Roll Zero Pro Monthly$4.991 Month
  • Roll Zero Pro Annual$29.991 Year

Questions

Is AI Author free?
AI Author is free to download, with in-app purchases available.
Is Roll Zero free?
Roll Zero is free to download, with in-app purchases available.
Do AI Author or Roll Zero have ads?
Neither AI Author nor Roll Zero shows ads.
Which is updated more often, AI Author or Roll Zero?
AI Author ships an update every 2 weeks, and Roll Zero every 11 days. Most recently, AI Author was updated on October 15, 2026 and Roll Zero on October 7, 2026.

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