# Planbook Mobile vs Arena by flashcardaudit.com

The clearest difference is update cadence: Arena by flashcardaudit.com at every 4 days against Planbook Mobile's every 2 months. Planbook Mobile's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Planbook Mobile sells 3 one-off in-app purchases and Arena by flashcardaudit.com sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Planbook Mobile ships an update every 2 months, Arena by flashcardaudit.com every 4 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Planbook Mobile | Arena by flashcardaudit.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.7K ratings)](https://appshunter.io/ios/app/planbook-mobile/id1502332358/reviews)** | — |
| Number of ratings | **7.7K** | — |
| Positive reviews | 50.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Subscription | — |
| Size | 83 MB | 62 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Planbook Inc.](https://appshunter.io/developer/671763637) | [Island Cookie Shop LLC](https://appshunter.io/developer/6778624482) |

## What reviewers say

### Planbook Mobile

[App page](https://appshunter.io/ios/app/planbook-mobile/id1502332358)

This is a comprehensive online lesson planning tool designed for educators. It offers a wide array of features, meticulous student learning standards, and excellent support. A free trial is available to experience its capabilities.

**Highlights:** Comprehensive lesson planning, Meticulous student learning standards, Extensive features for educators, Outstanding support and tutorials, Continuous improvement based on feedback

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Year Planbook Subscription | $20.00 | one-time |
| 2-Year Planbook Subscription | $36.00 | one-time |
| 3-Year Planbook Subscription | $48.00 | one-time |

**What reviewers like**

- 🚀 Time-saving program
- 👍 Helpful for both homeschool and school teachers
- 👍 Allows for easy sharing and organization of lessons
- 👍 Useful for adapting to changes like snow days

**What reviewers complain about**

- 🐛 Events/features not working in app
- 🐛 Google sign-in not working on app
- 🐛 Buggy and unreliable, crashes frequently
- 🐛 Copy/paste feature not working as expected
- 🐛 Inability to access Google Drive files in app

**Reported bugs**

- Unable to add school year dates
- Login page issues (keyboard blocking screen)
- Inability to use Gmail account for sign-up
- Lesson plans deleted without explanation

**Requested features**

- Add copy and paste feature
- Improve mobile app experience (e.g., biometric login, portrait mode)
- Enhance integration with other platforms (e.g., Canvas)


### Arena by flashcardaudit.com

[App page](https://appshunter.io/ios/app/arena-by-flashcardauditcom/id6778624480)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arena Membership | $5.99 | per month |
| Arena Membership | $39.99 | per year |


## Frequently asked questions

### Is Planbook Mobile free?

Planbook Mobile is free to download, with in-app purchases available.

### Is Arena by flashcardaudit.com free?

Arena by flashcardaudit.com is free to download, with in-app purchases available.

### Do Planbook Mobile or Arena by flashcardaudit.com have ads?

Neither Planbook Mobile nor Arena by flashcardaudit.com shows ads.

### Which is updated more often, Planbook Mobile or Arena by flashcardaudit.com?

Planbook Mobile ships an update every 2 months, and Arena by flashcardaudit.com every 4 days. Most recently, Planbook Mobile was updated on November 7, 2026 and Arena by flashcardaudit.com 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.*