# Stamp Value Stamp Identifier vs CTO Academy

The clearest difference is in-app purchases: CTO Academy at none against Stamp Value Stamp Identifier's 6. CTO Academy also leads on ads (none vs shown). Stamp Value Stamp Identifier's advantage is update cadence (weekly vs every 2 months) and chart position (#103 vs unranked). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stamp Value Stamp Identifier sells 6 in-app purchases, starting at $4.99 per 7 days. CTO Academy asks for nothing beyond the download.

Stamp Value Stamp Identifier ships an update weekly, CTO Academy every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stamp Value Stamp Identifier | CTO Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (3.6K ratings)](https://appshunter.io/ios/app/stamp-value-stamp-identifier/id6504604156/reviews)** | — |
| Number of ratings | **3.6K** | — |
| Positive reviews | 44.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#103** | — |
| Size | 57 MB | 66 MB |
| Requires iOS | 18.0 | **17.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ngoc Anh Pham Thi](https://appshunter.io/developer/1588013910) | [CTO Academy Ltd](https://appshunter.io/developer/1896213250) |

## What reviewers say

### Stamp Value Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-value-stamp-identifier/id6504604156)

**Currently charting:** #103 Top Grossing · Reference (US App Store)

Instantly identify and appraise your stamps using advanced image recognition. Get detailed information on origin, issue date, denomination, and market value to enhance your collecting experience. Ideal for both new and experienced philatelists.

**Highlights:** Image recognition stamp identification, Stamp appraisal and market value, Detailed stamp information (origin, date, denomination), Intuitive user interface, Educational resources for collectors

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO WEEKLY | $4.99 | per 7 days |
| PRO MONTHLY | $9.99 | per month |
| Premium Yearly Trial 7 day | $39.99 | per year |
| Premium Yearly First Month Sale | $39.99 | per year |
| Premium Yearly Trial | $39.99 | per year |
| PRO YEARLY | $39.99 | per year |

**What reviewers like**

- 🚀 Fast and accurate identification
- 👍 Intuitive and user-friendly interface
- 💡 Comprehensive stamp information
- 🔍 Impressive image recognition technology
- 🤝 Excellent community features

**What reviewers complain about**

- 🐛 Occasional crashes and compatibility issues
- 🤖 Inaccurate stamp identification in some cases
- 💸 Subscription model with high pricing
- 🤔 Excessive prompts to write reviews
- 🔄 Repetitive steps when adding stamps to collection

**Reported bugs**

- App crashes after payment
- Unable to open app after subscription
- Incorrect stamp identification (e.g., identifying US stamps as from Cambodia)

**Requested features**

- Dark mode option
- Advanced stamp valuation tools
- Improved batch processing for adding multiple stamps
- More detailed historical and market data
- Enhanced community features for sharing insights


### CTO Academy

[App page](https://appshunter.io/ios/app/cto-academy/id6766146822)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stamp Value Stamp Identifier free?

Stamp Value Stamp Identifier is free to download, with in-app purchases available.

### Is CTO Academy free?

CTO Academy is free to download, with no in-app purchases.

### Do Stamp Value Stamp Identifier or CTO Academy have ads?

Stamp Value Stamp Identifier shows ads; CTO Academy does not.

### Which is updated more often, Stamp Value Stamp Identifier or CTO Academy?

Stamp Value Stamp Identifier ships an update weekly, and CTO Academy every 2 months. Most recently, Stamp Value Stamp Identifier was updated on October 30, 2026 and CTO Academy on October 28, 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.*