# ISA Exam Prep vs Arbor Master Prep

The clearest difference is monetization model: Arbor Master Prep at free with in-app purchases against ISA Exam Prep's subscription. ISA Exam Prep's advantage is iOS requirement (17.6 vs 26.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. ISA Exam Prep sells 3 in-app purchases, starting at $2.99 per 7 days and Arbor Master Prep sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ISA Exam Prep against 5.0 for Arbor Master Prep. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

ISA Exam Prep ships an update every 3 weeks, Arbor Master Prep every 5 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ISA Exam Prep | Arbor Master Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/isa-exam-prep/id6746368020/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/arbor-master-prep/id6765711115/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 1 MB | 22 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Nikhil Kumar](https://appshunter.io/developer/1783391273) | [Twelve Gates Group LLC](https://appshunter.io/developer/1896045565) |

## What reviewers say

### ISA Exam Prep

[App page](https://appshunter.io/ios/app/isa-exam-prep/id6746368020)

Prepare for the ISA Certified Arborist exam with a comprehensive study system. Features over 500 questions, personalized study plans, mock exams, and AI-powered performance analysis. Study anywhere with offline access and track your progress across devices.

**Highlights:** 500+ specialized arboriculture questions, Personalized study plans, Realistic mock exams, AI-powered performance analysis, Offline access, Progress synchronization

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Isa Exam Prep Premium | $2.99 | per 7 days |
| Isa Exam Prep Premium | $39.99 | per year |
| LifeTime | $39.99 | one-time |


### Arbor Master Prep

[App page](https://appshunter.io/ios/app/arbor-master-prep/id6765711115)

Prepare for the ISA Certified Arborist Exam with an adaptive study system. Features an AI coach, targeted practice, and mock exams to help you learn faster and focus on weak areas. Track your progress and build confidence for exam day.

**Highlights:** AI Study Coach, Targeted Weak Area Focus, Adaptive Practice Quizzes, Progress Tracking, Full-Length Mock Exams, Flashcards & Study Mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $7.99 | per month |
| Annual Pro | $59.99 | per year |


## Frequently asked questions

### Is ISA Exam Prep free?

ISA Exam Prep is free to download, with in-app purchases available.

### Is Arbor Master Prep free?

Arbor Master Prep is free to download, with in-app purchases available.

### Which has better reviews, ISA Exam Prep or Arbor Master Prep?

ISA Exam Prep and Arbor Master Prep are both rated 5.0 out of 5 on the App Store, from 2 and 5 ratings respectively.

### Do ISA Exam Prep or Arbor Master Prep have ads?

Neither ISA Exam Prep nor Arbor Master Prep shows ads.

### Which is updated more often, ISA Exam Prep or Arbor Master Prep?

ISA Exam Prep ships an update every 3 weeks, and Arbor Master Prep every 5 weeks. Most recently, ISA Exam Prep was updated on October 6, 2026 and Arbor Master Prep on October 1, 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.*