# Quill: AI Writing Assistant — Rewrite, Fix Grammar & Tone

> Rewrite, Fix Grammar & Tone (iPhone/iPad app by Vasilii Polovnikov.)

- Source: https://appshunter.io/ios/app/quill-ai-writing-assistant/id6778920805 (this page in markdown: same URL + `.md`)
- Developer: [Vasilii Polovnikov](https://appshunter.io/developer/1716165883)
- Category: Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 25 MB
- Languages: American English
- Released: 2026-06-21
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/quill-ai-writing-assistant/id6778920805/reviews.md

## What is Quill?

Quill is a private AI writing assistant that runs entirely on your iPhone. Paste any text and rewrite it instantly — fix grammar and spelling, change the tone, make it shorter, or summarize it. No account, no cloud, no limits.

Unlike cloud writing tools that upload everything you type, Quill works fully offline and processes your words only on your device — so your messages, essays and ideas stay completely private.

WHAT YOU CAN DO
- Improve clarity, flow and word choice in one tap
- Fix grammar and spelling
- Switch tone — formal or casual
- Shorten or summarize long text
- Works in many languages

WHY QUILL
- 100% on-device AI — works fully offline, anywhere
- Private by design — your text is never uploaded or tracked
- Unlimited rewriting — no per-word fees
- No account, no cloud

MEMBERSHIP
Quill is a paid app. Subscriptions auto-renew until canceled; manage or cancel anytime in your Apple account settings.

Terms: https://bestpaid.app/legal/terms
Privacy: https://bestpaid.app/legal/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $24.49 | one-time |



## Version history (last 2 releases)

### 1.0.6 — 2026-08-01

Performance improvements and bug fixes.

### 1.0 — 2026-06-21

No release notes.

## Apps similar to Quill

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| --- | --- | --- | --- |
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| [UniverAI: AI Chat Assistant](https://appshunter.io/ios/app/univerai-ai-chat-assistant/id6477700131) | 4.8 (135) | Free | Productivity |
| [AI Writer - Writing Assistant](https://appshunter.io/ios/app/ai-writer-writing-assistant/id1663626137) | 4.7 (1,098) | Free | Productivity |
| [Image To PDF - PDF Converter](https://appshunter.io/ios/app/image-to-pdf-pdf-converter/id6464110777) | 4.6 (8) | Free | Productivity |
| [HeyChat Ask & Chat AI Chatbot](https://appshunter.io/ios/app/heychat-ask-and-chat-ai-chatbot/id6447714275) | 5.0 (2) | Free | Productivity |
| [AI Rewrite: On-Device](https://appshunter.io/ios/app/ai-rewrite-on-device/id6780014299) | — | Free | Productivity |

## More apps by Vasilii Polovnikov

- [1X2.TV: AI Sports Predictions](https://appshunter.io/ios/app/1x2tv-ai-sports-predictions/id6471899476)
- [AI-Stock-Predictions.com](https://appshunter.io/ios/app/ai-stock-predictionscom/id6736870397)
- [D20 Dice Roller - D&D](https://appshunter.io/ios/app/d20-dice-roller-d-and-d/id6771516643)
- [Daily Affirmations - Quotes](https://appshunter.io/ios/app/daily-affirmations-quotes/id6772552493)
- [Age Calculator - Days Old](https://appshunter.io/ios/app/age-calculator-days-old/id6772553137)
- [Feed Tracker: Nursing Log](https://appshunter.io/ios/app/feed-tracker-nursing-log/id6772553499)

All apps by Vasilii Polovnikov: https://appshunter.io/developer/1716165883

## Related topics

[quill writer](https://appshunter.io/ios/topics/quill-writer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*