# Philavo vs Two & Four

The clearest difference is ads: Philavo at none against Two & Four's shown. Philavo also leads on update cadence (fortnightly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Philavo sells 2 in-app purchases, starting at $39.99 per year and Two & Four sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Philavo ships an update fortnightly, Two & Four every 3 months. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Philavo | Two & Four |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/philavo-stamp-identifier-pro/id6768216786/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scaling Engine Limited](https://appshunter.io/developer/1881503481) | [Dev-top LLC](https://appshunter.io/developer/1896763895) |

## What reviewers say

### Philavo

[App page](https://appshunter.io/ios/app/philavo-stamp-identifier-pro/id6768216786)

Instantly identify stamps with AI-powered scanning. Get professional condition analysis and track real-time market values for your collection. Organize your entire stamp inventory with smart management tools.

**Highlights:** AI-powered stamp scanning and identification, Professional stamp grading and condition analysis, Real-time market value tracking, Smart collection management, Organize stamp inventory, Track collection value and rarity

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Yearly Offer | $39.99 | per year |
| Premium Yearly Trial | $39.99 | per year |


### Two & Four

[App page](https://appshunter.io/ios/app/two-and-four/id6789189291)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Two & Four Pro | $6.99 | one-time |


## Frequently asked questions

### Is Philavo free?

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

### Is Two & Four free?

Two & Four is free to download, with in-app purchases available.

### Do Philavo or Two & Four have ads?

Two & Four shows ads; Philavo does not.

### Which is updated more often, Philavo or Two & Four?

Philavo ships an update fortnightly, and Two & Four every 3 months. Most recently, Philavo was updated on October 24, 2026 and Two & Four 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.*