# One Plus Two = 3 vs Diagnosis Queen

The clearest difference is review sentiment: Diagnosis Queen at 100% against One Plus Two = 3's 60%. Diagnosis Queen also leads on update cadence (every 9 days vs every 2 months). One Plus Two = 3's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. One Plus Two = 3 sells 2 one-off in-app purchases and Diagnosis Queen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

One Plus Two = 3 ships an update every 2 months, Diagnosis Queen every 9 days. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | One Plus Two = 3 | Diagnosis Queen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/one-plus-two-3/id1473746933/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 135 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Alexey Izvalov](https://appshunter.io/developer/1437172357) | [Sven Rothsching](https://appshunter.io/developer/1850819630) |

## What reviewers say

### One Plus Two = 3

[App page](https://appshunter.io/ios/app/one-plus-two-3/id1473746933)

Engage your mind with a unique puzzle game that blends numbers and letters. Solve challenges by translating numerical values into descriptive phrases using a given set of letters. Earn power-ups as you progress through increasingly complex mathematical and linguistic riddles.

**Highlights:** Number to phrase translation, Mathematical operations integration, Use all provided letters, Result must match target number, Power-up rewards, Hidden gameplay hints

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Hint Bulbs | $0.99 | one-time |
| 1000 Hint Bulbs | $4.99 | one-time |


### Diagnosis Queen

[App page](https://appshunter.io/ios/app/diagnosis-queen/id6759192611)

Test your medical knowledge by quickly matching symptoms to diagnoses. Advance your career from intern to Chief of Medicine in this fast-paced game. Utilize helpful tools to beat the clock and become the ultimate Diagnosis Queen.

**Highlights:** Match symptoms to diagnoses, Career progression system, In-game power-ups, Game Center integration, Playful learning for medical professionals

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diagnosis Queen Gold | $0.49 | one-time |


## Frequently asked questions

### Is One Plus Two = 3 free?

One Plus Two = 3 is free to download, with in-app purchases available.

### Is Diagnosis Queen free?

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

### Do One Plus Two = 3 or Diagnosis Queen have ads?

Both One Plus Two = 3 and Diagnosis Queen show ads.

### Which is updated more often, One Plus Two = 3 or Diagnosis Queen?

One Plus Two = 3 ships an update every 2 months, and Diagnosis Queen every 9 days. Most recently, One Plus Two = 3 was updated on October 8, 2026 and Diagnosis Queen 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.*