# Underdog Curve vs Scanify

The clearest difference is in-app purchases: Underdog Curve at none against Scanify's 3. Underdog Curve also leads on update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Scanify sells 3 in-app purchases, starting at $7.99 per 7 days. Underdog Curve asks for nothing beyond the download.

Underdog Curve ships an update fortnightly, Scanify every 3 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Underdog Curve | Scanify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (21 ratings)](https://appshunter.io/ios/app/scanify-pdf-scanner-app/id6753343747/reviews)** |
| Number of ratings | — | **21** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 26 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Underdog Curve, LLC](https://appshunter.io/developer/1788224059) | [Rodan mobile Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1477178354) |

## What reviewers say

### Underdog Curve

[App page](https://appshunter.io/ios/app/underdog-curve/id6740060972)

**In-app purchases:** none


### Scanify

[App page](https://appshunter.io/ios/app/scanify-pdf-scanner-app/id6753343747)

Transform your phone into a high-quality document scanner. Easily capture and convert documents, receipts, and photos into professional-looking PDFs. Features include automatic edge detection, adjustable clarity, and secure cloud storage options.

**Highlights:** Instant document edge detection, HD scanning with adjustable brightness/contrast, PDF export and sharing, Secure local or cloud storage, Automatic image straightening

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Trial | $7.99 | per 7 days |
| Premium Weekly | $7.99 | per 7 days |
| Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Underdog Curve free?

Underdog Curve is free to download, with no in-app purchases.

### Is Scanify free?

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

### Do Underdog Curve or Scanify have ads?

Neither Underdog Curve nor Scanify shows ads.

### Which is updated more often, Underdog Curve or Scanify?

Underdog Curve ships an update fortnightly, and Scanify every 3 months. Most recently, Underdog Curve was updated on October 30, 2026 and Scanify on November 5, 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.*