# Quine vs Air Fill

The clearest difference is price: Air Fill at Free against Quine's $9.99. Air Fill also leads on iOS requirement (17.0 vs 26.0). Quine's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 3 weeks). On review sentiment, ads and device support there is nothing between them.

Air Fill is free to download; Quine costs $9.99 up front. Air Fill sells 2 in-app purchases, starting at $4.99 per month. Quine asks for nothing beyond the download.

Quine ships an update every 3 days, Air Fill every 3 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Quine | Air Fill |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/air-fill/id6792558975/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 5 MB | 13 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Chris Hunt](https://appshunter.io/developer/320142572) | [Knock Knock Bang LLC](https://appshunter.io/developer/1885386537) |

## What reviewers say

### Quine

[App page](https://appshunter.io/ios/app/quine/id6761664603)

Manage personal wikis on iOS devices and in the cloud. Create, edit, and organize information using self-contained wiki files. Coordinate work with wikis shared across multiple systems and devices.

**Highlights:** Run TiddlyWiki on iOS, Organize personal wikis, Edit and save wiki files, Cloud storage integration, Cross-device wiki sharing

**In-app purchases:** none


### Air Fill

[App page](https://appshunter.io/ios/app/air-fill/id6792558975)

Create and update Airtable records with fast, native forms designed for mobile. Features include conditional logic, offline saving, and signature capture. Offers a free tier with limited forms and a Pro subscription for unlimited access.

**Highlights:** Native mobile forms for Airtable, Create and update records, Offline data saving, Conditional logic, Signature capture, Photo and barcode attachments, Form Flows with Shortcuts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Air Fill Pro (Monthly) | $4.99 | per month |
| Air Fill Pro (Annual) | $39.99 | per year |


## Frequently asked questions

### Is Quine free?

Quine costs $9.99, with no in-app purchases.

### Is Air Fill free?

Air Fill is free to download, with in-app purchases available.

### Do Quine or Air Fill have ads?

Neither Quine nor Air Fill shows ads.

### Which is updated more often, Quine or Air Fill?

Quine ships an update every 3 days, and Air Fill every 3 weeks. Most recently, Quine was updated on November 9, 2026 and Air Fill on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*