# Isosceles Triangle PRO vs Memorize

The clearest difference is price: Memorize at Free against Isosceles Triangle PRO's $2.99. Memorize also leads on ratings volume (13 vs 2). Isosceles Triangle PRO's advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 5). On update cadence, ads and device support there is nothing between them.

Memorize is free to download; Isosceles Triangle PRO costs $2.99 up front. Memorize sells 5 in-app purchases, starting at $1.99 per 7 days. Isosceles Triangle PRO asks for nothing beyond the download.

Isosceles Triangle PRO holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Memorize has 13 ratings behind it against 2, so its average is the more settled of the two.

Isosceles Triangle PRO ships an update monthly, Memorize every 3 weeks. The most recent releases landed on September 17, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | Isosceles Triangle PRO | Memorize |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/isosceles-triangle-pro/id1568944096/reviews)** | [4.5 (13 ratings)](https://appshunter.io/ios/app/memorize-learn-and-remember/id1631928972/reviews) |
| Number of ratings | 2 | **13** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 179 MB | 133 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Jakub Milcarz](https://appshunter.io/developer/1631892122) |

## What reviewers say

### Isosceles Triangle PRO

[App page](https://appshunter.io/ios/app/isosceles-triangle-pro/id1568944096)

Calculate all properties of an isosceles triangle, whether acute or obtuse. Input known values to see formulas and results. Supports decimals, fractions, and step-by-step solutions with history saving and sharing.

**Highlights:** Calculate all isosceles triangle quantities, Display formulas for calculations, Supports acute and obtuse triangles, Handles decimals and fractions, Step-by-step solution display, History function for saved calculations, Adjustable decimal places

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

**In-app purchases:** none


### Memorize

[App page](https://appshunter.io/ios/app/memorize-learn-and-remember/id1631928972)

Enhance your studies with a minimalist interface for efficient learning. Organize subjects into decks, track progress with notes and feedback, and visualize study habits. Set reminders and sync across devices for a seamless academic journey.

**Highlights:** Minimalist interface, Subject-based decks, Learning journal with notes, Study habit visualization, Customizable reminders, Cross-device syncing

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memorize+ (Weekly) | $1.99 | per 7 days |
| Memorize+ (Monthly) | $3.99 | per month |
| Memorize+ (Family) | $9.99 | per year |
| Memorize+ (Annual) | $19.99 | per year |
| Memorize+ (Lifetime) | $49.99 | one-time |


## Frequently asked questions

### Is Isosceles Triangle PRO free?

Isosceles Triangle PRO costs $2.99, with no in-app purchases.

### Is Memorize free?

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

### Which has better reviews, Isosceles Triangle PRO or Memorize?

Isosceles Triangle PRO is rated higher. Isosceles Triangle PRO averages 5.0 out of 5 from 2 ratings, while Memorize averages 4.5 from 13 ratings.

### Do Isosceles Triangle PRO or Memorize have ads?

Neither Isosceles Triangle PRO nor Memorize shows ads.

### Which is updated more often, Isosceles Triangle PRO or Memorize?

Isosceles Triangle PRO ships an update monthly, and Memorize every 3 weeks. Most recently, Isosceles Triangle PRO was updated on September 17, 2026 and Memorize on August 12, 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.*