# Cuspart vs Instacalc.com

The clearest difference is update cadence: Instacalc.com at every 2 weeks against Cuspart's every 2 months. Cuspart's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cuspart ships an update every 2 months, Instacalc.com every 2 weeks. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Cuspart | Instacalc.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/instacalccom/id6502033125/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 8 MB | 3 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Tolga DALBUDAK](https://appshunter.io/developer/1479052908) | [Kalid Azad](https://appshunter.io/developer/602976316) |

## What reviewers say

### Cuspart

[App page](https://appshunter.io/ios/app/cuspart-unit-converter/id6444218099)

**Features:** macOS Compatibility

**In-app purchases:** none


### Instacalc.com

[App page](https://appshunter.io/ios/app/instacalccom/id6502033125)

This app bridges the gap between simple calculators and complex spreadsheets. It allows for natural language input, variables, and advanced functions, making calculations quick and easy to check. Share your calculations via a permalink.

**Highlights:** Natural language calculations, Variable and row support, Excel-style functions, Unit and currency conversions, Scientific and programming commands, Shareable calculation permalinks

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cuspart free?

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

### Is Instacalc.com free?

Instacalc.com is free to download, with no in-app purchases.

### Do Cuspart or Instacalc.com have ads?

Neither Cuspart nor Instacalc.com shows ads.

### Which is updated more often, Cuspart or Instacalc.com?

Cuspart ships an update every 2 months, and Instacalc.com every 2 weeks. Most recently, Cuspart was updated on October 7, 2026 and Instacalc.com on October 20, 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.*