# i vs PRSS Thundertime

i and PRSS Thundertime both sit at 5.0 stars, but that hides the real split: 80% of i's written reviews are positive against 18% of PRSS Thundertime's. i also leads on ratings volume (3 vs 1) and iOS requirement (13.0 vs 15.1). PRSS Thundertime's advantage is price (Free vs $4.99) and update cadence (every 2 months vs every 7 months). On rating, ads, in-app purchases and device support there is nothing between them.

PRSS Thundertime is free to download; i costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for i against 5.0 for PRSS Thundertime. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews are what separate them: 80% of i's written reviews are positive against 18% of PRSS Thundertime's.

i ships an update every 7 months, PRSS Thundertime every 2 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | i | PRSS Thundertime |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/i-logo/id435280247/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/prss-thundertime/id1124433927/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **80.0% of reviews** | 17.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 6 MB | 45 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPad, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CROMBEZ Emmanuel](https://appshunter.io/developer/375656695) | [Surrey School District](https://appshunter.io/developer/634542422) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-logo/id435280247)

This app is an interpreted programming language designed for educational purposes, focusing on functional programming capabilities. It allows users to test calculations, recursion, and array usage, serving as a teaching tool rather than for developing full applications.

**Highlights:** Functional programming, Global and local variables, Polish notation calculations, Recursive testing, Array usage, Interpreted language

**In-app purchases:** none


### PRSS Thundertime

[App page](https://appshunter.io/ios/app/prss-thundertime/id1124433927)

Stay informed with the official mobile app for École Panorama Ridge Secondary. Receive push notifications for school closures and important news, access up-to-date event calendars, and easily share school events. Connect with school resources, staff, and online platforms.

**Highlights:** Push notifications for school news, Up-to-date event calendars, Easy event sharing, Direct contact options (email, phone), Access to school website and social media, Export events to personal calendar

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

**In-app purchases:** none


## Frequently asked questions

### Is i free?

i costs $4.99, with no in-app purchases.

### Is PRSS Thundertime free?

PRSS Thundertime is free to download, with no in-app purchases.

### Which has better reviews, i or PRSS Thundertime?

i and PRSS Thundertime are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do i or PRSS Thundertime have ads?

Neither i nor PRSS Thundertime shows ads.

### Which is updated more often, i or PRSS Thundertime?

i ships an update every 7 months, and PRSS Thundertime every 2 months. Most recently, i was updated on September 25, 2026 and PRSS Thundertime on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*