# Blueye Observer vs Pilo Sketch

The clearest difference is in-app purchases: Blueye Observer at none against Pilo Sketch's 1. Pilo Sketch's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Pilo Sketch sells 1 one-off in-app purchase. Blueye Observer asks for nothing beyond the download.

Blueye Observer ships an update every 2 months, Pilo Sketch every 2 weeks. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Blueye Observer | Pilo Sketch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (5 ratings)](https://appshunter.io/ios/app/pilo-sketch/id6739214966/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 215 MB | 130 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blueye Robotics AS](https://appshunter.io/developer/1369714040) | [NORILAB Inc.](https://appshunter.io/developer/1476669544) |

## What reviewers say

### Blueye Observer

[App page](https://appshunter.io/ios/app/blueye-observer/id1453884806)

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

**In-app purchases:** none


### Pilo Sketch

[App page](https://appshunter.io/ios/app/pilo-sketch/id6739214966)

Transform your drawings into animated creations with simple strokes. Add playful motion, dynamic effects, and even doodle on photos. Save and share your animated sketches as videos or images.

**Highlights:** Instant sketch animation, Simple drawing interface, Dynamic motion effects, Draw on photos, Export as JPG or MP4

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Sketches | $4.99 | one-time |


## Frequently asked questions

### Is Blueye Observer free?

Blueye Observer is free to download, with no in-app purchases.

### Is Pilo Sketch free?

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

### Do Blueye Observer or Pilo Sketch have ads?

Neither Blueye Observer nor Pilo Sketch shows ads.

### Which is updated more often, Blueye Observer or Pilo Sketch?

Blueye Observer ships an update every 2 months, and Pilo Sketch every 2 weeks. Most recently, Blueye Observer was updated on October 10, 2026 and Pilo Sketch on October 24, 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.*