# Stamp vs Classifier Collection Tracker

The clearest difference is review sentiment: Classifier Collection Tracker at 68% against Stamp's 13%. Classifier Collection Tracker also leads on ads (none vs shown). Stamp's advantage is iOS requirement (14.0.0 vs 18.6). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Stamp sells 4 in-app purchases, starting at $4.99 per month and Classifier Collection Tracker sells 6 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Stamp ships an update fortnightly, Classifier Collection Tracker every 9 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Stamp | Classifier Collection Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (68 ratings)](https://appshunter.io/ios/app/classifier-collection-tracker/id1594081352/reviews)** |
| Number of ratings | — | **68** |
| Positive reviews | 13.0% of reviews | **67.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 23 MB |
| Requires iOS | **14.0.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Stamp-Manager GmbH](https://appshunter.io/developer/1263931955) | [App Deco Studio Inc.](https://appshunter.io/developer/835093422) |

## What reviewers say

### Stamp

[App page](https://appshunter.io/ios/app/stamp-manager/id1263931956)

Catalog your stamp collection quickly and share it with a global community for appraisals. Get estimates from thousands of users or opt for professional appraisals for valuable items. Manage your collection and potentially sell your stamps.

**Highlights:** Catalog stamp collections quickly, Share collections with a global community, Receive community appraisals, Request professional appraisals, Estimate stamp values, Upload unlimited albums (subscription), Ad-free experience (subscription)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-Day Premium | $4.99 | per month |
| 365-Day Premium | $45.99 | per year |
| 365-Day Premium | $50.99 | per year |
| Professional appraisal | $24.99 | one-time |


### Classifier Collection Tracker

[App page](https://appshunter.io/ios/app/classifier-collection-tracker/id1594081352)

Digitize and manage your diverse collections with this app. Catalog items, track what you need, and generate statistics. Share and sync collections across devices.

**Highlights:** Catalog any collectible, Wishlist management, Collection statistics, Customizable templates, Tagging for organization, Cross-device sync, Export collections

**Features:** Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Classifier Pro (Quarterly) | $4.99 | per 3 months |
| Classifier Pro (Quarterly) | $7.99 | per 3 months |
| Classifier Pro (Yearly) | $19.99 | per year |
| Classifier Pro (Yearly) | $34.99 | per year |
| Classifier Pro (Lifetime) | $49.99 | one-time |
| Classifier Pro (Lifetime) | $89.99 | one-time |


## Frequently asked questions

### Is Stamp free?

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

### Is Classifier Collection Tracker free?

Classifier Collection Tracker is free to download, with in-app purchases available.

### Do Stamp or Classifier Collection Tracker have ads?

Stamp shows ads; Classifier Collection Tracker does not.

### Which is updated more often, Stamp or Classifier Collection Tracker?

Stamp ships an update fortnightly, and Classifier Collection Tracker every 9 days. Most recently, Stamp was updated on October 6, 2026 and Classifier Collection Tracker on October 14, 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.*