# TLS Inspector — Trust & Safety On-the-go.

> Tool to inspect TLS certificates and identify trust issues for online safety. (iPhone/iPad app by Ian Spence.)

- Source: https://appshunter.io/ios/app/tls-inspector/id1100539810 (this page in markdown: same URL + `.md`)
- Developer: [Ian Spence](https://appshunter.io/developer/572311760)
- Category: Utilities, Developer Tools
- Price: Free
- Rating: 4.77/5 from 256 App Store ratings · 47 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 18 MB
- Languages: English
- Released: 2016-04-12
- Data updated: 2026-08-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tls-inspector/id1100539810/reviews.md

## What is TLS Inspector?

Trust & Safety in the palm of your hand.

• Input & Inspect. It's really that simple.
Input a domain or IP address using the TLS Inspector app, or inspect any website from within your favourite browser using our Inspect Website extension.

• No Nonsense Results. "At a glance" has never been easier.
TLS Inspector will show you the entire issue chain for any website, and whether or not your device trusts that chain.

• Dive Deep. Details for days.
View important properties of any TLS certificate including fingerprints, dates, algorithms, and more.

• Stay Safe Online. No training required.
TLS Inspector makes it easy to detect and avoid man-in-the-middle attacks on unsafe networks by highlighting invalid and untrustworthy certificates.

• Right Place, Right Time. Inspect nearly anything from anywhere.
Easily access TLS Inspector from other apps, such as Safari, with the Show Certificates share sheet action.

TLS Inspector is free & libre open source software (FLOSS) with source code available on GitHub. TLS Inspector is made entirely without the use of Artificial Intelligence (AI) or Large Language Models (LLMs).

## Key features

- Input domain or IP for inspection
- Inspect websites via browser extension
- View entire issue chain and trust status
- Detailed TLS certificate properties
- Detect man-in-the-middle attacks
- Share sheet integration with Safari

## What do users think of TLS Inspector?

Overall sentiment: positive

**Pros**

- ✅ Essential security utility
- 🔧 Useful for cert renewals
- 📱 Inspects certs on mobile
- 💡 Innovative CA root updating
- 👍 Seamless share sheet integration
- 🚀 Fast and simple to use
- 💯 Developer knows certs
- ✨ Clean and beautiful interface
- 🛠️ Great for debugging
- 🔍 Verifies website security
- 🌟 Open source, no adware

**Cons**

- 🐛 Share extension not working
- ⚠️ Error messages for updates
- 📉 No longer works for some
- 🥶 App freezes
- 🚫 Unauthorized app claim

**Commonly reported bugs**

- App crash issue fixed
- Share extension 'inspect website' never works
- Error checking for TLS bundle updates
- App freezes
- App locks up, non functional

**Most requested features**

- Continue making app great and helpful
- Add dark mode option
- More advanced features

## Recent user reviews (10 of 47)

All indexed reviews: https://appshunter.io/ios/app/tls-inspector/id1100539810/reviews.md

### 5/5 — App crash issue has been fixed.

*2026-04-12*

The latest update has fixed the app crash issue and I’m very pleased with how quickly the developers fixed the issue! I hope the developers continue to make this app a great and helpful app to have!

**Developer response:** Thank you for the kind words!

Bundle updates aren't critical and it won't negatively impact the app or any results if they're a few months out of date.

### 5/5 — Essential tech utility

*2025-11-26*

I’ve been using TLS Inspector for years now. Part of my job is managing cert renewals and other security related components for company resources. I use TLS inspector to help validate certificates, including making sure the correct cert is being served and expiration times, etc. from public internet on my phone.

This app does exactly what I need with no fluff or bloat and without drowning me in ads. I consider it an essential tool in my tool belt.

Highly recommend.

### 5/5 — 2025 UPDATE! Must Have essential security aid for iOS 🔐

*2025-05-31*

2025 UPDATE: It's been at least 10 (!) years since I've been using this app. Times have changed since then (And thankfully, server configurations) It remains unmatched in purpose, functionality, stability, and expertise. Recently there was a massive implementation of something NO OTHER APP does; device CA root certificate updating. Yup, it peeks where no other app dares- Except pretty shady ones.  I trust this developer, and appreciate the thought and coding needed to get there. 

I downloaded This tool years ago and it’s been on all my devices- testing and personal- as an essential web tool, especially these days with web apps being everywhere. It’s helped me trace down all sorts of inconsistencies, unexpected behavior, and hands down shady stuff… all through the iOS share sheet! From simple double checks out of safety, to hunting down a rotten CA issue this app never fails. Thank you to the dev for keeping it updated and for designing such a great tool. This dev KNOWS certs. I mean, really knows. This isn’t just some easily coded generic utility tool app. You won’t find any other cert apps anywhere near as advanced as this.

### 5/5 — Great Tool

*2025-01-26, version 2.8.2*

One thing I noticed that the Brave browser has that Safari doesn’t have as standard is the ability to check a sites certificate, with this app Safari has that ability too. Many thanks to the developer for this great app!

### 3/5 — Needs to be updated and fixed

*2024-12-15, version 2.8.1*

This is a great useful app when it works, unfortunately its share extension “inspect website” never works with me because of my higher ping and slower internet speed due to using a double hop VPN connection

### 5/5 — Good stuff, thank you!

*2024-09-01*

Complete info well presented.

### 5/5 — Super Handy. Thanks!!

*2024-08-04, version 2.8.0*

Every now and then you find a little App that does one thing and one thing well. If you’re technical and do you want to inspect certificates for websites but use iPadOS or iPhone, this app is for you.

### 3/5 — Wow

*2024-06-07*

Its great so far

### 5/5 — UPDATED!🔏Must Have essential security aid for iOS

*2024-04-29*

UPDATE: Still going strong, thanks to this app over the years I’ve been able to learn about cert chains in the Apple server environment on device! 

I downloaded This tool years ago and it’s been on all my devices- testing and personal- as an essential web tool, especially these days with web apps being everywhere. It’s helped me trace down all sorts of inconsistencies, unexpected behavior, and hands down shady stuff… all through the iOS share sheet! From simple double checks out of safety, to hunting down a rotten CA issue this app never fails. Thank you to the dev for keeping it updated and for designing such a great tool. Wish I wrote this 4 years ago when I starting using this! UPDATE: It’s been a few years and this app has grown to something better than I ever expected. This dev KNOWS certs. I mean, really knows. This isn’t just some easily coded generic utility tool app. You won’t find any other cert apps anywhere near as advanced as this.

### 5/5 — Would have been six stars

*2024-01-12*

I wanted to add an extra star for fixing the bug where the passenger door kept falling off.

## Frequently asked questions about TLS Inspector

### What does the TLS Inspector app do?

The TLS Inspector app allows you to input a domain or IP address to inspect its TLS certificate and understand its trust and safety status. It helps detect potential man-in-the-middle attacks by highlighting invalid or untrustworthy certificates.

### How can I inspect a website with TLS Inspector?

You can inspect a website by inputting its domain or IP address directly into the TLS Inspector app. Additionally, you can use the 'Inspect Website' browser extension or the 'Show Certificates' share sheet action from within your browser, such as Safari.

### Is TLS Inspector free to use?

Yes, TLS Inspector is free and libre open source software (FLOSS). The source code is readily available on GitHub, and there are no costs associated with using the application.

### What kind of information does TLS Inspector provide?

TLS Inspector provides detailed information about any TLS certificate, including its entire issue chain, whether your device trusts that chain, important properties like fingerprints, validity dates, and algorithms used.

### Who would benefit from using TLS Inspector?

Anyone concerned about online security and verifying the trustworthiness of websites would benefit from TLS Inspector. This includes developers, IT professionals, and general users who want to ensure they are not connecting to unsafe networks or being targeted by man-in-the-middle attacks.

## Version history (last 5 releases)

### 3.0.4 — 2026-07-01

Thanks for using TLS Inspector! In this update:

• Re-added the ability to copy certificate thumbprints
• Improved the German localization

### 3.0.3 — 2026-05-29

Thanks for using TLS Inspector, and a special thank you to the multiple individuals who reached out to help with localizing the app!

This update introduces a French translation and a refresh of the German translation.

### 3.0.2 — 2026-05-23

Thanks for using TLS Inspector!

• Added a Polish translation thanks to a generous contribution from a user. TLS Inspector accepts community translations for any language, if you're interested in helping out check out our Github page and open an issue - we'll be happy to explain the process.
• The app will now automatically switch to an available language (if we have a translation for it) based on your device's language. This can be turned off and a specific language used.
• Fixed an issue where even after selecting a different language, the app would still be in English.

### 3.0.1 — 2026-04-12

Update 3.0.1 fixes a crash that occurs when opening the app after updating to 3.0.0. Apologies for missing this bug during testing, and thank you to everyone who reached out to report this issue.

---

Welcome to TLS Inspector 3.0 - the largest update yet, released on the 10th anniversary of our first release.

TLS Inspector 3.0 is the culmination of over a year of hard work to modernize nearly every aspect of the app while maintaining the same behaviour you've come to rely on.

Here are some key highlights:

• SwiftUI Experience. The user interface of the app has been modernized by utilizing SwiftUI, providing you with a more consistent design with improved accessibility features.

• More Data. This update includes more information with your inspections, including certificate sources, results from status checks, and improved handling of certificates without subjects.

• Swift-Powered Inspection Engine. The inspection engine is what provides the information you see when you perform an inspection. With update 3, we've completely redone this engine to use Swift - providing you with a more stable and faster inspection experience.

To learn more about the history TLS Inspector and the work that went into this update read more at: https://tlsinspector.com/update3

### 2.8.4 — 2025-11-13

• This update removes the ability to send an email with feedback about the app. To report an issue with the app or to request a feature, please use Github, or reach us on Mastodon or Bluesky.

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## More apps by Ian Spence

- [DNS Inspector](https://appshunter.io/ios/app/dns-inspector/id6470965982)

All apps by Ian Spence: https://appshunter.io/developer/572311760

## Related topics

[tls inspector](https://appshunter.io/ios/topics/tls-inspector) · [ssl](https://appshunter.io/ios/topics/ssl) · [ssl checker](https://appshunter.io/ios/topics/ssl-checker) · [tls](https://appshunter.io/ios/topics/tls) · [tlscontact](https://appshunter.io/ios/topics/tlscontact) · [inspector safety](https://appshunter.io/ios/topics/inspector-safety) · [tls tunnel](https://appshunter.io/ios/topics/tls-tunnel)

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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 2026-08-05.*