# Rethink+ vs Spell Bee

The clearest difference is in-app purchases: Rethink+ at none against Spell Bee's 2. Rethink+ also leads on update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 15.5). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Spell Bee sells 2 in-app purchases, starting at $1.99 per month. Rethink+ asks for nothing beyond the download.

Rethink+ ships an update weekly, Spell Bee every 2 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Rethink+ | Spell Bee |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/spell-bee-spellmaster-ai/id6743663308/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 35 MB | 108 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rapidue Technologies Pvt. Ltd.](https://appshunter.io/developer/1133493345) | [Avigta Labs LLC](https://appshunter.io/developer/497907699) |

## What reviewers say

### Rethink+

[App page](https://appshunter.io/ios/app/rethink-plus/id6450213465)

This app provides engaging sustainability education for individuals, especially students, with tailored content, interactive quizzes, and practical activities. It aims to foster behavioral change and promote grassroots sustainability through gamified learning experiences and leaderboards.

**Highlights:** Tailor-made sustainability content, Engaging sustainability quizzes, Quarterly sustainability activities, Gamification elements, Profile analytics, Leaderboards

**Features:** macOS Compatibility

**In-app purchases:** none


### Spell Bee

[App page](https://appshunter.io/ios/app/spell-bee-spellmaster-ai/id6743663308)

This app helps users master spelling through AI-powered tools. It offers instant voice feedback, custom word list uploads, and daily challenges to make learning engaging and efficient. Track progress and focus on difficult words with personalized insights.

**Highlights:** Instant voice feedback, Scan & upload word lists, Daily challenges, AI-powered progress tracking, Interactive quizzes, Pronunciation guides

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Spell Master Pro | $1.99 | per month |
| AI Spell Master yearly Pro | $9.99 | per year |


## Frequently asked questions

### Is Rethink+ free?

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

### Is Spell Bee free?

Spell Bee is free to download, with in-app purchases available.

### Do Rethink+ or Spell Bee have ads?

Neither Rethink+ nor Spell Bee shows ads.

### Which is updated more often, Rethink+ or Spell Bee?

Rethink+ ships an update weekly, and Spell Bee every 2 months. Most recently, Rethink+ was updated on October 7, 2026 and Spell Bee on October 6, 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.*