# Edison XRef vs 100

The clearest difference is update cadence: 100 at every 2 days against Edison XRef's every 75 months. On price, ads, 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.

Edison XRef ships an update every 75 months, 100 every 2 days. The most recent releases landed on October 10, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Edison XRef | 100 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 75 months | **Every 2 days** |
| Size | 49 MB | 253 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cooper Bussmann, LLC](https://appshunter.io/developer/609315535) | [VDE VERLAG GMBH](https://appshunter.io/developer/443404609) |

## What reviewers say

### Edison XRef

[App page](https://appshunter.io/ios/app/edison-xref/id1470236203)

**Features:** macOS Compatibility

**In-app purchases:** none


### 100

[App page](https://appshunter.io/ios/app/100-years/id1557896074)

**In-app purchases:** none


## Frequently asked questions

### Is Edison XRef free?

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

### Is 100 free?

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

### Do Edison XRef or 100 have ads?

Neither Edison XRef nor 100 shows ads.

### Which is updated more often, Edison XRef or 100?

Edison XRef ships an update every 75 months, and 100 every 2 days. Most recently, Edison XRef was updated on October 10, 2026 and 100 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.*