# Symbol Keys vs Numeris 3D Graphing Calculator

The clearest difference is in-app purchases: Symbol Keys at none against Numeris 3D Graphing Calculator's 1. Numeris 3D Graphing Calculator's advantage is iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Numeris 3D Graphing Calculator sells 1 one-off in-app purchase. Symbol Keys asks for nothing beyond the download.

Symbol Keys ships an update every 2 weeks, Numeris 3D Graphing Calculator monthly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Symbol Keys | Numeris 3D Graphing Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/symbol-keys/id6740465793/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | — |
| Size | 3 MB | 22 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ji Hoon Lee](https://appshunter.io/developer/1790100104) | [Dustin Dondrup](https://appshunter.io/developer/1895779068) |

## What reviewers say

### Symbol Keys

[App page](https://appshunter.io/ios/app/symbol-keys/id6740465793)

Access hundreds of Unicode symbols with a customizable keyboard. Easily insert special characters into your messages and documents.

**Highlights:** Access hundreds of Unicode symbols, Customizable keyboard layout, Easy symbol insertion, Supports iPhone and iPad

**In-app purchases:** none


### Numeris 3D Graphing Calculator

[App page](https://appshunter.io/ios/app/numeris-3d-graphing-calculator/id6764434554)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numeris Pro | $2.99 | one-time |


## Frequently asked questions

### Is Symbol Keys free?

Symbol Keys is free to download, with no in-app purchases.

### Is Numeris 3D Graphing Calculator free?

Numeris 3D Graphing Calculator is free to download, with in-app purchases available.

### Do Symbol Keys or Numeris 3D Graphing Calculator have ads?

Neither Symbol Keys nor Numeris 3D Graphing Calculator shows ads.

### Which is updated more often, Symbol Keys or Numeris 3D Graphing Calculator?

Symbol Keys ships an update every 2 weeks, and Numeris 3D Graphing Calculator monthly. Most recently, Symbol Keys was updated on November 4, 2026 and Numeris 3D Graphing Calculator on November 5, 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.*