# Qlango vs Calculate 84 AI

The clearest difference is ads: Calculate 84 AI at none against Qlango's shown. Calculate 84 AI also leads on review sentiment (100% vs 74%). Qlango's advantage is iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Qlango sells 7 in-app purchases, starting at $3.99 per month and Calculate 84 AI sells 7 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Qlango against 4.6 for Calculate 84 AI. Both are backed by a comparable volume of ratings — 117 and 40 respectively. Written reviews are what separate them: 74% of Qlango's written reviews are positive against 100% of Calculate 84 AI's.

Qlango ships an update weekly, Calculate 84 AI fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Qlango | Calculate 84 AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (117 ratings)](https://appshunter.io/ios/app/qlango-learn-80-plus-languages/id1258076084/reviews)** | [4.6 (40 ratings)](https://appshunter.io/ios/app/calculate-84-ai/id6670720231/reviews) |
| Number of ratings | **117** | 40 |
| Positive reviews | 74.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 126 MB | 65 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Qlango d.o.o.](https://appshunter.io/developer/1475998913) | [Fredinax Graphing Calculator](https://appshunter.io/developer/1767217696) |

## What reviewers say

### Qlango

[App page](https://appshunter.io/ios/app/qlango-learn-80-plus-languages/id1258076084)

Master over 70 languages with personalized lessons and interactive games. This app adapts to your learning pace and goals, allowing you to practice from any language and receive real-time feedback. Features include spaced repetition, CEFR level support, and AI-powered assistance.

**Highlights:** Learn 70+ languages from any other language, Interactive games like Wordle-style, Personalized lessons based on mistakes, Spaced repetition system, Real-time hints and grammar tips, Hands-free audio mode, AI and expert Q&A

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Qlango Premium | $3.99 | per month |
| Monthly subscription | $7.99 | per month |
| Monthly subscription | $7.99 | per month |
| Yearly subscription | $19.99 | per year |
| Yearly subscription | $39.99 | per year |
| Yearly subscription | $59.99 | per year |
| One time payment | $119.99 | one-time |


### Calculate 84 AI

[App page](https://appshunter.io/ios/app/calculate-84-ai/id6670720231)

This AI-powered graphing calculator offers step-by-step guidance for complex math problems, from pre-algebra to calculus. It features interactive graphing, matrix operations, and statistical tools, making learning math intuitive and efficient.

**Highlights:** AI-guided step-by-step solutions, Comprehensive math coverage (Pre-Algebra to Calculus), Interactive and dynamic graphing, Matrix and statistical calculations, Scrollable calculation history, Fraction and angle conversion support

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculate AI PRO - Monthly | $1.99 | per month |
| Calculate AI PRO - Monthly | $1.99 | per month |
| Calculate AI PRO - Monthly | $3.99 | per month |
| Calculate AI PRO - Yearly | $5.99 | per year |
| Calculate AI PRO - Yearly | $12.99 | per year |
| Calculate AI PRO - Yearly | $17.99 | per year |
| Calculate AI PRO - Yearly | $24.99 | per year |


## Frequently asked questions

### Is Qlango free?

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

### Is Calculate 84 AI free?

Calculate 84 AI is free to download, with in-app purchases available.

### Which has better reviews, Qlango or Calculate 84 AI?

Qlango is rated higher. Qlango averages 4.7 out of 5 from 117 ratings, while Calculate 84 AI averages 4.6 from 40 ratings.

### Do Qlango or Calculate 84 AI have ads?

Qlango shows ads; Calculate 84 AI does not.

### Which is updated more often, Qlango or Calculate 84 AI?

Qlango ships an update weekly, and Calculate 84 AI fortnightly. Most recently, Qlango was updated on October 24, 2026 and Calculate 84 AI on October 24, 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.*