# One Plus Two = 3 vs Mystery Digger

The clearest difference is rating: Mystery Digger at 4.5 against One Plus Two = 3's 3.0. Mystery Digger also leads on in-app purchases (none vs 2) and review sentiment (92% vs 60%). On price, ads and device support there is nothing between them.

Both are free to download. One Plus Two = 3 sells 2 one-off in-app purchases. Mystery Digger asks for nothing beyond the download.

Mystery Digger holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Mystery Digger has 30 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of One Plus Two = 3's written reviews are positive against 92% of Mystery Digger's.

One Plus Two = 3 ships an update every 2 months, Mystery Digger every 5 weeks. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | One Plus Two = 3 | Mystery Digger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/one-plus-two-3/id1473746933/reviews) | **[4.5 (30 ratings)](https://appshunter.io/ios/app/mystery-digger/id6743214380/reviews)** |
| Number of ratings | 4 | **30** |
| Positive reviews | 60.0% of reviews | **92.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 27 MB | 117 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alexey Izvalov](https://appshunter.io/developer/1437172357) | [Nikolai Perminov](https://appshunter.io/developer/1727563081) |

## 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 |


### Mystery Digger

[App page](https://appshunter.io/ios/app/mystery-digger/id6743214380)

Explore underground mysteries in this idle clicker game. Upgrade your drilling machine to uncover hidden notes and intriguing items that reveal a captivating story. Enjoy straightforward controls and soothing gameplay for a relaxing adventure.

**Highlights:** Idle clicker gameplay, Underground exploration, Drilling machine upgrades, Uncover hidden notes, Collect intriguing items, Captivating story progression, Relaxing adventure

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Plus Two = 3 free?

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

### Is Mystery Digger free?

Mystery Digger is free to download, with no in-app purchases.

### Which has better reviews, One Plus Two = 3 or Mystery Digger?

Mystery Digger is rated higher. One Plus Two = 3 averages 3.0 out of 5 from 4 ratings, while Mystery Digger averages 4.5 from 30 ratings.

### Do One Plus Two = 3 or Mystery Digger have ads?

Both One Plus Two = 3 and Mystery Digger show ads.

### Which is updated more often, One Plus Two = 3 or Mystery Digger?

One Plus Two = 3 ships an update every 2 months, and Mystery Digger every 5 weeks. Most recently, One Plus Two = 3 was updated on October 8, 2026 and Mystery Digger on October 19, 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.*