# SimpleGPSApp Lesson 01 vs Just Toolbox

The clearest difference is in-app purchases: SimpleGPSApp Lesson 01 at none against Just Toolbox's 3. Just Toolbox's advantage is update cadence (every 3 days vs every 16 months) and device support (5 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Just Toolbox sells 3 in-app purchases, starting at $0.99 per month. SimpleGPSApp Lesson 01 asks for nothing beyond the download.

SimpleGPSApp Lesson 01 ships an update every 16 months, Just Toolbox every 3 days. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SimpleGPSApp Lesson 01 | Just Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/just-toolbox/id6504505981/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 8 MB | 33 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [John Avatar](https://appshunter.io/developer/375690746) | [哲 严](https://appshunter.io/developer/926087266) |

## What reviewers say

### SimpleGPSApp Lesson 01

[App page](https://appshunter.io/ios/app/simplegpsapp-lesson-01/id1596382413)

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

**In-app purchases:** none


### Just Toolbox

[App page](https://appshunter.io/ios/app/just-toolbox/id6504505981)

A comprehensive suite of utilities designed to streamline iOS development. It offers tools for server monitoring, certificate management, device information, and various text and data conversions. The app supports multiple Apple platforms and provides open-source code for learning.

**Highlights:** Server status monitoring, SSL certificate management, Device information retrieval, QR code generation, Text hashing and encoding, Date and time format conversion, Integer base conversion, URL parsing

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access (1 Month) | $0.99 | per month |
| All Access (1 Year) | $4.99 | per year |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is SimpleGPSApp Lesson 01 free?

SimpleGPSApp Lesson 01 is free to download, with no in-app purchases.

### Is Just Toolbox free?

Just Toolbox is free to download, with in-app purchases available.

### Do SimpleGPSApp Lesson 01 or Just Toolbox have ads?

Neither SimpleGPSApp Lesson 01 nor Just Toolbox shows ads.

### Which is updated more often, SimpleGPSApp Lesson 01 or Just Toolbox?

SimpleGPSApp Lesson 01 ships an update every 16 months, and Just Toolbox every 3 days. Most recently, SimpleGPSApp Lesson 01 was updated on October 6, 2026 and Just Toolbox on October 25, 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.*