# eCertificate vs IHI App

The clearest difference is update cadence: IHI App at monthly against eCertificate's every 21 months. eCertificate's advantage is iOS requirement (12.2 vs 15.1). 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.

eCertificate ships an update every 21 months, IHI App monthly. The most recent releases landed on September 17, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | eCertificate | IHI App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Monthly** |
| Size | 26 MB | 35 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PARTROIS](https://appshunter.io/developer/1590847370) | [SPIRIT LABS COMPANY LIMITED](https://appshunter.io/developer/1584883565) |

## What reviewers say

### eCertificate

[App page](https://appshunter.io/ios/app/ecertificate/id1392508412)

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

**In-app purchases:** none


### IHI App

[App page](https://appshunter.io/ios/app/ihi-app/id6739825923)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eCertificate free?

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

### Is IHI App free?

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

### Do eCertificate or IHI App have ads?

Neither eCertificate nor IHI App shows ads.

### Which is updated more often, eCertificate or IHI App?

eCertificate ships an update every 21 months, and IHI App monthly. Most recently, eCertificate was updated on September 17, 2026 and IHI App on May 16, 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.*