# EDIS electrical certificates vs 123

The clearest difference is update cadence: EDIS electrical certificates at monthly against 123's every 3 months. EDIS electrical certificates also leads on device support (3 vs 1) and iOS requirement (12.2 vs 16.4). On price, ads 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.

EDIS electrical certificates ships an update monthly, 123 every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EDIS electrical certificates | 123 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 132 MB | 82 MB |
| Requires iOS | **12.2** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [EDIS](https://appshunter.io/developer/1252267556) | [CEIMless](https://appshunter.io/developer/1533231407) |

## What reviewers say

### EDIS electrical certificates

[App page](https://appshunter.io/ios/app/edis-electrical-certificates/id1293795668)

**Features:** Vision Pro support

**In-app purchases:** none


### 123

[App page](https://appshunter.io/ios/app/123-works/id1665687527)

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

**In-app purchases:** none


## Frequently asked questions

### Is EDIS electrical certificates free?

EDIS electrical certificates is free to download, with no in-app purchases.

### Is 123 free?

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

### Do EDIS electrical certificates or 123 have ads?

Neither EDIS electrical certificates nor 123 shows ads.

### Which is updated more often, EDIS electrical certificates or 123?

EDIS electrical certificates ships an update monthly, and 123 every 3 months. Most recently, EDIS electrical certificates was updated on October 26, 2026 and 123 on October 25, 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.*