---
title: "Calculate84 - Reviews, Revenue and Downloads in Belgium | Apple App Store"
description: "A MODERN GRAPHING CALCULATOR ON THE iPHONE 1. Fast, Interactive Touch-Screen Graphing 2. Everything is where you’d expect it to be 3. Scrollable windows (no more spamming the up arrow keys) 4. Intelli"
---

# Calculate84 — Belgium
> Intended for use with TI-84

![Calculate84 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/e8/c4/18/e8c418a4-f4d7-2c67-aba5-f0f52fa1d41a/AppIcon-0-0-1x_U007epad-0-0-0-1-0-85-220.png/434x0w.png)

**Developer:** [Century Light](https://apptail.io/developer/century-light-fOHb)
**Category:** Education
**Rating:** 4.6/5 (54 ratings)
**Price:** Free
**Bundle ID:** com.calculate84
**Store:** Apple App Store
**Country:** Belgium
**Version:** 2.6.2 (released 2026-03-18)
**Original Release:** 2019-08-17
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/be/app/app/id1459712793)
**AppTail Page:** [https://apptail.io/app/calculate84-YVOc/belgium](https://apptail.io/app/calculate84-YVOc/belgium)

## Calculate84 Description
A MODERN GRAPHING CALCULATOR ON THE iPHONE
1. Fast, Interactive Touch-Screen Graphing
2. Everything is where you’d expect it to be
3. Scrollable windows (no more spamming the up arrow keys)
4. Intelligent error messages
5. Convenient 

WHY MAKE ANOTHER GRAPHING CALCULATOR APP?
1. We (the creators), once relied on graphing calculators, and after installing countless, similar apps, we couldn’t find anything useable. Hence, we made our own.

2. Before launching on the App Store, we personally worked with a limited, yet sizable, number of students to continuously improve the app.

HOW TO SEND FEEDBACK
1. Press the red feedback button.

## Calculate84 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/57/40/09/57400968-a195-f775-4458-16e722b70d2e/364ecec2-7b34-4713-bbb6-4c556e7b3bdd_iPhone_13_Pro_Artboard_1.jpg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/09/3d/0a/093d0a64-8d66-e580-1775-42c7259cd999/3700ad8e-b77b-4cc2-8921-34c9e51c7347_iPhone_13_Pro_Artboard_2.jpg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/3d/59/e4/3d59e47a-3227-520c-7de1-97d735f0155d/90835b0c-9a9c-4184-8ea3-69fa1eda8f60_iPhone_13_Pro_Artboard_3.jpg/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/84/ac/be/84acbea1-3023-b5bc-e085-ad47e6c1a7f5/5f12be52-1809-4616-867e-2430721437c0_iPhone_13_Pro_Artboard_4.jpg/1284x2778.png)

## Calculate84 Rating Breakdown in Belgium
- 5 stars: 43 (80%)
- 4 stars: 7 (13%)
- 3 stars: 1 (2%)
- 2 stars: 0 (0%)
- 1 stars: 3 (6%)

## Calculate84 Reviews in Belgium

### ***-- "Wrong results displayed when using Floating Numbers"
This is a very nice calculator, mimics the TI84 completely.
There is one important thing the developer should look at.
When using Normal + Floating Numbers (in Mode) some numbers with negative powers of 10 are not displayed correctly.
F.e.: when you input 1,256 . 10^-18 (Enter), this number is displayed as 0 instead of 1,256 . 10^-18.
Can this be fixed please?
-- jan van der borght, 2021-11-27

### ***** "Great for teachers"
Thank you very much for this app !
As a teacher, it will be very useful for me and my students.
It would be nice to be able to choose a display font size so calculations would be easier to read in the classroom.
-- N. Lamborelle, 2021-10-17

### ***** "Perfect"
It is just the best calculator app on the market! I am so satisfied with all the features that it has, it works even better than the TI-84+ that i have myself, I use this app more than that 110€ calculator.
-- royalplopkoek, 2021-09-20

### ****- "Looking good so far"
I like the idea. 2nd>angle graph>min&max need to be fixed tho
-- Bor neukt kathleen, 2019-12-10

[View all Calculate84 reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Calculate84 In-App Purchases
| Item | Price |
|------|-------|
| Lifetime Subscription | €14.99 |
| Annual Pro Subscription | €7.99 |
| Monthly Pro Subscription | €2.99 |
| Lifetime Pro Subscription | €34.99 |

## Calculate84 Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | United States | Education | #80 |
| Top Free | Canada | Education | #348 |

## Calculate84 Discovered Keywords
- calc
- calculate84
- lighting calculations
- calculation of lighting


## Calculate84 Available In
- [United States](https://apptail.io/app/calculate84-YVOc/united-states)
- [Canada](https://apptail.io/app/calculate84-YVOc/canada)
- [Germany](https://apptail.io/app/calculate84-YVOc/germany)
- [China](https://apptail.io/app/calculate84-YVOc/china)
- [Sweden](https://apptail.io/app/calculate84-YVOc/sweden)
- [France](https://apptail.io/app/calculate84-YVOc/france)
- [Belgium](https://apptail.io/app/calculate84-YVOc/belgium)
- [Mexico](https://apptail.io/app/calculate84-YVOc/mexico)
- [Türkiye](https://apptail.io/app/calculate84-YVOc/turkey)
- [United Kingdom](https://apptail.io/app/calculate84-YVOc/united-kingdom)
- [Taiwan](https://apptail.io/app/calculate84-YVOc/taiwan)
- [Portugal](https://apptail.io/app/calculate84-YVOc/portugal)
- [Japan](https://apptail.io/app/calculate84-YVOc/japan)
- [Vietnam](https://apptail.io/app/calculate84-YVOc/vietnam)
- [Switzerland](https://apptail.io/app/calculate84-YVOc/switzerland)
- [Brazil](https://apptail.io/app/calculate84-YVOc/brazil)
- [Netherlands](https://apptail.io/app/calculate84-YVOc/netherlands)
- [Australia](https://apptail.io/app/calculate84-YVOc/australia)
- [Qatar](https://apptail.io/app/calculate84-YVOc/qatar)
- [India](https://apptail.io/app/calculate84-YVOc/india)
- [Singapore](https://apptail.io/app/calculate84-YVOc/singapore)
- [Saudi Arabia](https://apptail.io/app/calculate84-YVOc/saudi-arabia)
- [Thailand](https://apptail.io/app/calculate84-YVOc/thailand)
- [Hong Kong SAR China](https://apptail.io/app/calculate84-YVOc/hong-kong)
- [Ecuador](https://apptail.io/app/calculate84-YVOc/ecuador)
- [Colombia](https://apptail.io/app/calculate84-YVOc/colombia)
- [Philippines](https://apptail.io/app/calculate84-YVOc/philippines)
- [Spain](https://apptail.io/app/calculate84-YVOc/spain)
- [Dominican Republic](https://apptail.io/app/calculate84-YVOc/dominican-republic)
- [Italy](https://apptail.io/app/calculate84-YVOc/italy)
- [Ghana](https://apptail.io/app/calculate84-YVOc/ghana)
- [Malaysia](https://apptail.io/app/calculate84-YVOc/malaysia)
- [Ukraine](https://apptail.io/app/calculate84-YVOc/ukraine)
- [United Arab Emirates](https://apptail.io/app/calculate84-YVOc/united-arab-emirates)
- [Peru](https://apptail.io/app/calculate84-YVOc/peru)
- [Denmark](https://apptail.io/app/calculate84-YVOc/denmark)
- [Nigeria](https://apptail.io/app/calculate84-YVOc/nigeria)
- [Kazakhstan](https://apptail.io/app/calculate84-YVOc/kazakhstan)
- [Poland](https://apptail.io/app/calculate84-YVOc/poland)
- [Russia](https://apptail.io/app/calculate84-YVOc/russia)
- [Czechia](https://apptail.io/app/calculate84-YVOc/czechia)
- [Chile](https://apptail.io/app/calculate84-YVOc/chile)
- [Jamaica](https://apptail.io/app/calculate84-YVOc/jamaica)
- [Jordan](https://apptail.io/app/calculate84-YVOc/jordan)
- [Azerbaijan](https://apptail.io/app/calculate84-YVOc/azerbaijan)
- [Finland](https://apptail.io/app/calculate84-YVOc/finland)
- [Egypt](https://apptail.io/app/calculate84-YVOc/egypt)
- [Pakistan](https://apptail.io/app/calculate84-YVOc/pakistan)
- [Austria](https://apptail.io/app/calculate84-YVOc/austria)
- [Greece](https://apptail.io/app/calculate84-YVOc/greece)
- [Ireland](https://apptail.io/app/calculate84-YVOc/ireland)
- [Israel](https://apptail.io/app/calculate84-YVOc/israel)
- [Kenya](https://apptail.io/app/calculate84-YVOc/kenya)
- [Cayman Islands](https://apptail.io/app/calculate84-YVOc/cayman-islands)
- [Lebanon](https://apptail.io/app/calculate84-YVOc/lebanon)
- [Luxembourg](https://apptail.io/app/calculate84-YVOc/luxembourg)
- [Malta](https://apptail.io/app/calculate84-YVOc/malta)
- [Norway](https://apptail.io/app/calculate84-YVOc/norway)
- [New Zealand](https://apptail.io/app/calculate84-YVOc/new-zealand)
- [Oman](https://apptail.io/app/calculate84-YVOc/oman)
- [Senegal](https://apptail.io/app/calculate84-YVOc/senegal)
- [Uruguay](https://apptail.io/app/calculate84-YVOc/uruguay)
- [Romania](https://apptail.io/app/calculate84-YVOc/romania)
- [Uzbekistan](https://apptail.io/app/calculate84-YVOc/uzbekistan)
- [Argentina](https://apptail.io/app/calculate84-YVOc/argentina)
- [Honduras](https://apptail.io/app/calculate84-YVOc/honduras)
- [Bahrain](https://apptail.io/app/calculate84-YVOc/bahrain)
- [Belarus](https://apptail.io/app/calculate84-YVOc/belarus)
- [Lithuania](https://apptail.io/app/calculate84-YVOc/lithuania)
- [Mali](https://apptail.io/app/calculate84-YVOc/mali)
- [Macao SAR China](https://apptail.io/app/calculate84-YVOc/macau)
- [Uganda](https://apptail.io/app/calculate84-YVOc/uganda)
- [South Africa](https://apptail.io/app/calculate84-YVOc/south-africa)
- [Armenia](https://apptail.io/app/calculate84-YVOc/armenia)
- [Cyprus](https://apptail.io/app/calculate84-YVOc/cyprus)
- [Slovenia](https://apptail.io/app/calculate84-YVOc/slovenia)
- [Slovakia](https://apptail.io/app/calculate84-YVOc/slovakia)
- [Suriname](https://apptail.io/app/calculate84-YVOc/suriname)
- [Brunei](https://apptail.io/app/calculate84-YVOc/brunei)
- [Tunisia](https://apptail.io/app/calculate84-YVOc/tunisia)
- [Bermuda](https://apptail.io/app/calculate84-YVOc/bermuda)
- [Bulgaria](https://apptail.io/app/calculate84-YVOc/bulgaria)
- [North Macedonia](https://apptail.io/app/calculate84-YVOc/north-macedonia)
- [Madagascar](https://apptail.io/app/calculate84-YVOc/madagascar)
- [Namibia](https://apptail.io/app/calculate84-YVOc/namibia)
- [Latvia](https://apptail.io/app/calculate84-YVOc/latvia)
- [Sri Lanka](https://apptail.io/app/calculate84-YVOc/sri-lanka)
- [Nepal](https://apptail.io/app/calculate84-YVOc/nepal)
- [Panama](https://apptail.io/app/calculate84-YVOc/panama)
- [Kuwait](https://apptail.io/app/calculate84-YVOc/kuwait)
- [Iceland](https://apptail.io/app/calculate84-YVOc/iceland)
- [Indonesia](https://apptail.io/app/calculate84-YVOc/indonesia)
- [Hungary](https://apptail.io/app/calculate84-YVOc/hungary)
- [Paraguay](https://apptail.io/app/calculate84-YVOc/paraguay)
- [Grenada](https://apptail.io/app/calculate84-YVOc/grenada)
- [Estonia](https://apptail.io/app/calculate84-YVOc/estonia)
- [Algeria](https://apptail.io/app/calculate84-YVOc/algeria)

---

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