# TreasureHunter3D vs MJCalc

The clearest difference is review sentiment: MJCalc at 100% against TreasureHunter3D's 22%. TreasureHunter3D's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TreasureHunter3D ships an update every 11 months, MJCalc every 10 months. The most recent releases landed on October 11, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | TreasureHunter3D | MJCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/treasurehunter3d/id846719060/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 22.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 10 months** |
| Monetization | **Free** | Ad-supported |
| Size | 19 MB | 26 MB |
| Requires iOS | **9.1** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tekaso](https://appshunter.io/developer/560600670) | [Shuji Nagaoka](https://appshunter.io/developer/362303447) |

## What reviewers say

### TreasureHunter3D

[App page](https://appshunter.io/ios/app/treasurehunter3d/id846719060)

Visualize buried objects up to 30 meters deep with high-resolution 3D scans. Detect precious metals, ancient artifacts, and hidden structures. Requires a specific metal detector device.

**Highlights:** High-resolution 3D object visualization, Detect object presence, depth, and size, View sub-surface object shapes, Store scan data and GPS locations, Share scans via email and social media, Export scans to mapping software, Bluetooth 4.0 connectivity

**In-app purchases:** none


### MJCalc

[App page](https://appshunter.io/ios/app/mjcalc/id1188639571)

This app simplifies Mahjong score calculations with minimal touch input. Designed for efficiency, it aims to make scoring quick and easy for players. Feedback and requests can be submitted via the support page.

**Highlights:** Simplified score calculation, Minimal touch operations, Efficient gameplay aid, Support page for feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TreasureHunter3D free?

TreasureHunter3D is free to download, with no in-app purchases.

### Is MJCalc free?

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

### Do TreasureHunter3D or MJCalc have ads?

MJCalc shows ads; TreasureHunter3D does not.

### Which is updated more often, TreasureHunter3D or MJCalc?

TreasureHunter3D ships an update every 11 months, and MJCalc every 10 months. Most recently, TreasureHunter3D was updated on October 11, 2026 and MJCalc on September 26, 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.*