# Calphace vs Image Saliency

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

Both are free to download. Calphace sells 3 one-off in-app purchases. Image Saliency asks for nothing beyond the download.

Calphace ships an update monthly, Image Saliency fortnightly. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Calphace | Image Saliency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 7 MB | 38 MB |
| Requires iOS | **17.0** | 17.7.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Akihiro Usui](https://appshunter.io/developer/1387267485) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Calphace

[App page](https://appshunter.io/ios/app/calphace/id1587107292)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snack-Sized Tip | $0.49 | one-time |
| Coffee-Sized Tip | $1.99 | one-time |
| Lunch-Sized Tip | $3.99 | one-time |


### Image Saliency

[App page](https://appshunter.io/ios/app/image-saliency/id6511211544)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calphace free?

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

### Is Image Saliency free?

Image Saliency is free to download, with no in-app purchases.

### Do Calphace or Image Saliency have ads?

Both Calphace and Image Saliency show ads.

### Which is updated more often, Calphace or Image Saliency?

Calphace ships an update monthly, and Image Saliency fortnightly. Most recently, Calphace was updated on September 9, 2026 and Image Saliency on September 11, 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.*