# Only One vs Stamps

The clearest difference is price: Stamps at Free against Only One's $0.99. Stamps also leads on update cadence (every 2 months vs every 39 months). Only One's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On rating, ratings volume, ads and device support there is nothing between them.

Stamps is free to download; Only One costs $0.99 up front. Stamps sells 1 one-off in-app purchase. Only One asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Only One against 5.0 for Stamps. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Only One ships an update every 39 months, Stamps every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Only One | Stamps |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/only-one-a-logic-puzzle/id1619099640/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/stamps/id6744961801/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 65 MB | 149 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kofi Austin](https://appshunter.io/developer/1495016623) | [Hatem Shahbari](https://appshunter.io/developer/1806606496) |

## What reviewers say

### Only One

[App page](https://appshunter.io/ios/app/only-one-a-logic-puzzle/id1619099640)

This is a minimalist logic puzzle game where each level requires you to find a unique solution related to the number one. Explore diverse puzzles and receive hints if you get stuck for over 45 seconds.

**Highlights:** Minimalist logic puzzles, Unique solutions per level, Theme based on the number one, Variety of fun puzzles, In-game hints after 45 seconds

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

**In-app purchases:** none


### Stamps

[App page](https://appshunter.io/ios/app/stamps/id6744961801)

Arrange stamps on a grid to meet country, content, and cost objectives. Utilize country-specific stamp rules to your advantage or be hindered by them. Progress through increasingly challenging stages with random goals.

**Highlights:** Grid-based stamp arrangement, Country-specific stamp rules, Progressive stage difficulty, Randomly chosen goals, 10 unique stamp sets, Hand-crafted puzzles, Adjustable difficulty

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $2.99 | one-time |


## Frequently asked questions

### Is Only One free?

Only One costs $0.99, with no in-app purchases.

### Is Stamps free?

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

### Which has better reviews, Only One or Stamps?

Only One and Stamps are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Only One or Stamps have ads?

Neither Only One nor Stamps shows ads.

### Which is updated more often, Only One or Stamps?

Only One ships an update every 39 months, and Stamps every 2 months. Most recently, Only One was updated on November 3, 2026 and Stamps on October 30, 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.*