# Shark FPV vs Undertone

The clearest difference is in-app purchases: Shark FPV at none against Undertone's 1. Shark FPV also leads on iOS requirement (8.0 vs 15.0). Undertone's advantage is update cadence (every 9 days vs every 3 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Undertone sells 1 one-off in-app purchase. Shark FPV asks for nothing beyond the download.

Shark FPV ships an update every 3 months, Undertone every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shark FPV | Undertone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/undertone-color-study/id6761922242/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 96 MB | 32 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [武裕 麦](https://appshunter.io/developer/953003312) | [Paintingstack Technologies SpA](https://appshunter.io/developer/1884953294) |

## What reviewers say

### Shark FPV

[App page](https://appshunter.io/ios/app/shark-fpv/id1546844806)

**Features:** macOS Compatibility

**In-app purchases:** none


### Undertone

[App page](https://appshunter.io/ios/app/undertone-color-study/id6761922242)

Analyze the color structure of any image, revealing its palette, harmony, temperature, and value. Understand the relationships that define an image's feel, with all processing done on your device. Save analyses to build a personal color reference library.

**Highlights:** Color palette analysis with proportions, Color harmony identification, Temperature map overlay, Value structure breakdown, On-device processing, Automatic analysis saving, Hex codes and painter-friendly names

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Shark FPV free?

Shark FPV is free to download, with no in-app purchases.

### Is Undertone free?

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

### Do Shark FPV or Undertone have ads?

Neither Shark FPV nor Undertone shows ads.

### Which is updated more often, Shark FPV or Undertone?

Shark FPV ships an update every 3 months, and Undertone every 9 days. Most recently, Shark FPV was updated on November 3, 2026 and Undertone 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.*