# Diagnosis vs Tech Line

The clearest difference is iOS requirement: Diagnosis at 8.0 against Tech Line's 15.0. On price, update cadence, 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.

Diagnosis ships an update monthly, Tech Line every 2 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Diagnosis | Tech Line |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 550 MB | 14 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [Liftlogic AB](https://appshunter.io/developer/1444148267) |

## What reviewers say

### Diagnosis

[App page](https://appshunter.io/ios/app/diagnosis/id1517729194)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tech Line

[App page](https://appshunter.io/ios/app/tech-line/id6745219813)

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

**In-app purchases:** none


## Frequently asked questions

### Is Diagnosis free?

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

### Is Tech Line free?

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

### Do Diagnosis or Tech Line have ads?

Neither Diagnosis nor Tech Line shows ads.

### Which is updated more often, Diagnosis or Tech Line?

Diagnosis ships an update monthly, and Tech Line every 2 months. Most recently, Diagnosis was updated on October 29, 2026 and Tech Line on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*