# DinoDoku vs Spot Difference

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

Both are free to download. DinoDoku sells 3 one-off in-app purchases. Spot Difference asks for nothing beyond the download.

DinoDoku ships an update every 4 days, Spot Difference every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | DinoDoku | Spot Difference |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 1.1 GB | 301 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [sung won kim](https://appshunter.io/developer/1849560098) | [科明 谢](https://appshunter.io/developer/880092328) |

## What reviewers say

### DinoDoku

[App page](https://appshunter.io/ios/app/dinodoku/id6800340948)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Day Ad Removal | $0.99 | one-time |
| remove_ads_7d | $3.99 | one-time |
| remove_ads_28d | $5.99 | one-time |


### Spot Difference

[App page](https://appshunter.io/ios/app/spot-difference-stamp/id6805383060)

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

**In-app purchases:** none


## Frequently asked questions

### Is DinoDoku free?

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

### Is Spot Difference free?

Spot Difference is free to download, with no in-app purchases.

### Do DinoDoku or Spot Difference have ads?

DinoDoku shows ads; Spot Difference does not.

### Which is updated more often, DinoDoku or Spot Difference?

DinoDoku ships an update every 4 days, and Spot Difference every 3 days. Most recently, DinoDoku was updated on October 31, 2026 and Spot Difference 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.*