# OneStamp vs PicMorph Coloring

The clearest difference is update cadence: PicMorph Coloring at daily against OneStamp's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OneStamp sells 3 one-off in-app purchases and PicMorph Coloring sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

OneStamp ships an update every 9 days, PicMorph Coloring daily. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | OneStamp | PicMorph Coloring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (23 ratings)](https://appshunter.io/ios/app/onestamp/id6760986254/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 96.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 6 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [尉卿 褚](https://appshunter.io/developer/1698865439) | [HIROMOTO TSUJI](https://appshunter.io/developer/1106215904) |

## What reviewers say

### OneStamp

[App page](https://appshunter.io/ios/app/onestamp/id6760986254)

This app allows you to crop photos into unique stamp-shaped images. It encourages a new perspective by focusing on small details within a larger picture, revealing hidden emotions and stories. Transform everyday scenes into distinctive visual stamps.

**Highlights:** Stamp-shaped photo cropping, Focus on image details, Reframing everyday scenes, Discover hidden emotions, Unique visual perspective

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| OneStamp Pro | $3.99 | one-time |
| OneStamp Pro | $9.99 | one-time |


### PicMorph Coloring

[App page](https://appshunter.io/ios/app/picmorph-coloring/id6762473659)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coloring Pro – Monthly | $4.99 | per month |
| Coloring Pro – Yearly | $39.90 | per year |
| Starter - 10 sparks | $0.99 | one-time |
| Plus- 25 sparks | $1.99 | one-time |
| Popular - 75 sparks | $4.99 | one-time |
| Power - 200 sparks | $9.99 | one-time |
| Whale - 500 sparks | $19.99 | one-time |


## Frequently asked questions

### Is OneStamp free?

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

### Is PicMorph Coloring free?

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

### Do OneStamp or PicMorph Coloring have ads?

Neither OneStamp nor PicMorph Coloring shows ads.

### Which is updated more often, OneStamp or PicMorph Coloring?

OneStamp ships an update every 9 days, and PicMorph Coloring daily. Most recently, OneStamp was updated on October 16, 2026 and PicMorph Coloring on September 26, 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.*