# CertsCheck — Check TLS/SSL Certificates

> Inspect TLS/SSL certificate details from any URL. (iPhone/iPad app by Yuya Asamura.)

- Source: https://appshunter.io/ios/app/certscheck/id6469147491 (this page in markdown: same URL + `.md`)
- Developer: [Yuya Asamura](https://appshunter.io/developer/1184558977)
- Category: Developer Tools, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 34 MB
- Languages: American English
- Released: 2023-10-18
- Data updated: 2026-08-21
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/certscheck/id6469147491/reviews.md

## What is CertsCheck?

CertsCheck is an app that allows you to easily check the contents of TLS/SSL certificates.
You can also input the URL and inspect the certificate's details directly using a Share Extension from Safari or your preferred browser app.

The majority of sites using Let's Encrypt are not necessarily fraudulent sites!!

********************
CertsCheck Premium
- Monthly $1.99
- Yearly $19.99

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Terms of service: https://github.com/nnsnodnb/ssl-certificates-check-ios/wiki/Terms
Privacy Policy: https://github.com/nnsnodnb/ssl-certificates-check-ios/wiki/Privacy-Policy
Notation based on Japan's Act on Specified Commercial Transactions: https://nnsnodnb.moe/commercial-law/

## Key features

- Check TLS/SSL certificate contents
- Inspect certificate details via URL
- Share Extension for browsers
- Understand Let's Encrypt certificates
- Premium subscription for advanced features

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |
| Premium (Yearly) | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Buy developer a coffee | $1.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/certscheck/id6469147491/reviews.md

### 5/5 — Dbestcleaningco

*2025-07-26*

Great

**Developer response:** Thank you!

### 5/5 — CertsCheck

*2024-11-07*

Excellent

**Developer response:** Thank you!

## Frequently asked questions about CertsCheck

### What is CertsCheck?

CertsCheck is a developer tool that allows you to easily check the contents of TLS/SSL certificates. You can input a URL and inspect the certificate's details directly using a Share Extension from Safari or your preferred browser app.

### How much does CertsCheck cost?

CertsCheck is free to download and use. There is an optional 'Premium' subscription available for $1.99 per month or $19.99 per year, offering additional benefits.

### What devices does CertsCheck support?

CertsCheck is currently supported on iPhone devices.

### How often is CertsCheck updated?

The latest version, 1.2.2, was released on April 2nd, 2026. The app was initially released on October 18th, 2023, suggesting regular updates.

### Is CertsCheck suitable for beginners?

Yes, the app is designed for ease of use, allowing users to inspect certificate details without requiring deep technical knowledge. The age rating of 4+ also indicates its accessibility.

### Does CertsCheck have ads?

No, CertsCheck does not contain advertisements. The app is free to use and offers an optional premium subscription for enhanced features.

### What are the subscription options for CertsCheck Premium?

CertsCheck Premium offers a monthly subscription for $1.99 with a 7-day free trial, and a yearly subscription for $19.99 with a 1-month free trial.

### What kind of information can I get from CertsCheck?

You can check the contents of TLS/SSL certificates, including details about their issuer, validity period, and subject. This helps in understanding the security of the connection.

## Version history (last 5 releases)

### 1.2.3 — 2026-07-14

- Updated libraries.
- Added a confirmation alert before displaying the advertisement for obtaining certificate data.

### 1.2.2 — 2026-04-02

- Internal processing has been improved

### 1.2.1 — 2026-03-03

- Partially improved the app’s launch speed
- Updated the libraries
- Added displays available only in certain regions

### 1.2.0 — 2026-02-25

- Updated the libraries
- Removed the App Clip feature
- Implemented in-app purchases for subscriptions and sending coffee to the developer
- The app icon has been renewed

### 1.1.1 — 2026-02-02

- Updated the libraries
- Fixed an issue that caused a crash when obtaining certain certificates
- Fixed a bug where selecting an item on the information screen did not trigger a screen transition

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## More apps by Yuya Asamura

- [NowPlaying ~ Just launch ~](https://appshunter.io/ios/app/nowplaying-just-launch/id1289764391)
- [Simple WebSocket Client](https://appshunter.io/ios/app/simple-websocket-client/id6448638174)

All apps by Yuya Asamura: https://appshunter.io/developer/1184558977

## Related topics

[ssl certificate checker](https://appshunter.io/ios/topics/ssl-certificate-checker)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*