iSTB vs ChatGPT
Side-by-side comparison on App Store — Updated 2026
| Metric | iSTB | ChatGPT |
|---|---|---|
| Developer | Nihal Ahmed | OpenAI OpCo, LLC |
| Rating | 4.6★ | 4.8★ |
| Reviews | 1.6K | 6.1M |
| Installs | — | — |
| Price | $14.99 | Free |
| In-App Purchases | No | Yes (5 items) |
| Best Rank | #9 | #1 |
| Content Rating | 4+ | 12+ |
| Last Updated | 2025-12-19 | 2026-03-10 |
iSTB vs ChatGPT: Overview
iSTB and ChatGPT are both EDUCATION apps available on the App Store. iSTB has a 4.6-star rating from 1.6K reviews, while ChatGPT has 4.8 stars from 6.1M reviews. In terms of rankings, iSTB reaches #9 and ChatGPT reaches #1 in the EDUCATION charts. iSTB offers 7 in-app purchases, while ChatGPT offers 5 in-app purchases.
Frequently Asked Questions
Which is better, iSTB or ChatGPT?
Based on user ratings, ChatGPT (4.8★) is rated higher than iSTB (4.6★). However, the best choice depends on your specific needs.
Is iSTB or ChatGPT more popular?
ChatGPT has more reviews (6.1M) compared to iSTB (1.6K), suggesting it is more widely used.
Are iSTB and ChatGPT free?
iSTB is $14.99. ChatGPT is free with in-app purchases. View IAP prices.
What category are iSTB and ChatGPT in?
Both apps are in the EDUCATION category on App Store. See the full EDUCATION category report.