# Smart Diary Edu vs TriStack

The clearest difference is price: Smart Diary Edu at $2.99 against TriStack's $6.99. Smart Diary Edu also leads on iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Smart Diary Edu costs $2.99 and TriStack $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Smart Diary Edu | TriStack |
| --- | --- | --- |
| Price | **$2.99** | $6.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Size | 23 MB | 36 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matteo D'Ignazio](https://appshunter.io/developer/634863524) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### Smart Diary Edu

[App page](https://appshunter.io/ios/app/smart-diary-edu/id1439717659)

This app helps students manage their academic life by organizing schedules, tracking assignments, and monitoring grades. It offers tools for time management, goal setting, and note-taking, with features like customizable timetables and reminders.

**Highlights:** Add homework, tests, and notes, Manage weekly timetable, Track grades and set goals, Time management organizer, Task reminders and customization, Notes with text formatting, iCloud backup

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### TriStack

[App page](https://appshunter.io/ios/app/tristack/id6743567658)

**In-app purchases:** none


## Frequently asked questions

### Is Smart Diary Edu free?

Smart Diary Edu costs $2.99, with no in-app purchases.

### Is TriStack free?

TriStack costs $6.99, with no in-app purchases.

### Do Smart Diary Edu or TriStack have ads?

Neither Smart Diary Edu nor TriStack shows ads.

### Which is updated more often, Smart Diary Edu or TriStack?

Smart Diary Edu ships an update every 2 months, and TriStack every 2 months. Most recently, Smart Diary Edu was updated on November 2, 2026 and TriStack on November 4, 2026.

---

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