# HiroshimARcive vs SumXMinus

The clearest difference is ads: HiroshimARcive at none against SumXMinus's shown. HiroshimARcive also leads on device support (3 vs 1) and iOS requirement (8.0 vs 16.0). On price, update cadence and in-app purchases there is nothing between them.

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

HiroshimARcive ships an update every 4 weeks, SumXMinus every 6 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | HiroshimARcive | SumXMinus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hiroshimarcive/id473459421/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 8 MB | 32 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [英徳 渡邉](https://appshunter.io/developer/1570768648) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### HiroshimARcive

[App page](https://appshunter.io/ios/app/hiroshimarcive/id473459421)

Explore historical data of Hiroshima in augmented reality. View information overlaid on a 3D map or directly through your camera, bringing the past to life.

**Highlights:** Augmented Reality (AR) interface, Pluralistic digital archive, Map mode with markers, AR mode with camera view tags, Data from multiple historical sources

**In-app purchases:** none


### SumXMinus

[App page](https://appshunter.io/ios/app/sumxminus-negative-math/id6480327347)

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

**In-app purchases:** none


## Frequently asked questions

### Is HiroshimARcive free?

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

### Is SumXMinus free?

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

### Do HiroshimARcive or SumXMinus have ads?

SumXMinus shows ads; HiroshimARcive does not.

### Which is updated more often, HiroshimARcive or SumXMinus?

HiroshimARcive ships an update every 4 weeks, and SumXMinus every 6 weeks. Most recently, HiroshimARcive was updated on November 1, 2026 and SumXMinus on November 8, 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.*