# Thunderstand vs Open Readings

The clearest difference is in-app purchases: Open Readings at none against Thunderstand's 1. Thunderstand's advantage is update cadence (weekly vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Thunderstand sells 1 in-app purchase, starting at $0.99 per 7 days. Open Readings asks for nothing beyond the download.

Thunderstand ships an update weekly, Open Readings every 6 months. The most recent releases landed on June 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Thunderstand | Open Readings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/thunderstand/id1488523918/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 181 MB | 36 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zetalearning](https://appshunter.io/developer/1556724473) | [VILNIAUS UNIVERSITETO FIZIKOS FAKULTETO ALUMNIO DRAUGIJA](https://appshunter.io/developer/1804664950) |

## What reviewers say

### Thunderstand

[App page](https://appshunter.io/ios/app/thunderstand/id1488523918)

This app personalizes your learning journey with AI-driven recommendations and rewards active study sessions with virtual coins. Redeem coins for real-world prizes, participate in monthly raffles, and utilize a focus monitor to stay on track. Create flashcards, notes, and routines quickly to boost efficiency and retention.

**Highlights:** AI-driven personalized learning, Earn virtual coins for study, Redeem coins for real rewards, Monthly raffle giveaways, Dynamic focus monitor, Create flashcards and notes, Scheduled review reminders

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Efficient Student Pass | $0.99 | per 7 days |


### Open Readings

[App page](https://appshunter.io/ios/app/open-readings/id6743805540)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thunderstand free?

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

### Is Open Readings free?

Open Readings is free to download, with no in-app purchases.

### Do Thunderstand or Open Readings have ads?

Neither Thunderstand nor Open Readings shows ads.

### Which is updated more often, Thunderstand or Open Readings?

Thunderstand ships an update weekly, and Open Readings every 6 months. Most recently, Thunderstand was updated on June 10, 2026 and Open Readings on September 11, 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.*