# ADI Tracker vs Lesson Diary

The clearest difference is in-app purchases: Lesson Diary at none against ADI Tracker's 4. Lesson Diary also leads on update cadence (daily vs every 6 weeks) and iOS requirement (16.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. ADI Tracker sells 4 in-app purchases, starting at $3.99 per month. Lesson Diary asks for nothing beyond the download.

ADI Tracker ships an update every 6 weeks, Lesson Diary daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | ADI Tracker | Lesson Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 6 MB | 66 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Sufyaan Ashraf](https://appshunter.io/developer/6773262763) | [Rezaul Reza](https://appshunter.io/developer/6798027171) |

## What reviewers say

### ADI Tracker

[App page](https://appshunter.io/ios/app/adi-trackerdriving-instructor/id6773262761)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $3.99 | per month |
| Pro Monthly | $7.99 | per month |
| Basic Annual | $29.99 | per year |
| Pro Annually | $59.99 | per year |


### Lesson Diary

[App page](https://appshunter.io/ios/app/lesson-diary/id6803864989)

**In-app purchases:** none


## Frequently asked questions

### Is ADI Tracker free?

ADI Tracker is free to download, with in-app purchases available.

### Is Lesson Diary free?

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

### Do ADI Tracker or Lesson Diary have ads?

Neither ADI Tracker nor Lesson Diary shows ads.

### Which is updated more often, ADI Tracker or Lesson Diary?

ADI Tracker ships an update every 6 weeks, and Lesson Diary daily. Most recently, ADI Tracker was updated on October 31, 2026 and Lesson Diary on October 31, 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.*