# Instacalc.com vs iSumList

The clearest difference is in-app purchases: Instacalc.com at none against iSumList's 1. Instacalc.com also leads on ads (none vs shown) and ratings volume (3 vs 1). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. iSumList sells 1 one-off in-app purchase. Instacalc.com asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Instacalc.com against 5.0 for iSumList. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Instacalc.com ships an update every 2 weeks, iSumList every 8 days. The most recent releases landed on July 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Instacalc.com | iSumList |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/instacalccom/id6502033125/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/isumlist/id6753130281/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 37 MB |
| Requires iOS | **16.4** | 17 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Kalid Azad](https://appshunter.io/developer/602976316) | [Ricardo Abraham Desiderio Gonzalez](https://appshunter.io/developer/1531648196) |

## What reviewers say

### 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


### iSumList

[App page](https://appshunter.io/ios/app/isumlist/id6753130281)

Effortlessly manage and sum numeric lists on your Apple devices. Track expenses, shopping, or any quantifiable data with customizable list types and visual data representation. Syncs seamlessly across iPhone, iPad, and Apple Watch.

**Highlights:** Numeric list tracking, iCloud sync, Apple Watch widgets, Bar and pie charts, Customizable categories, Light/dark mode

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is Instacalc.com free?

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

### Is iSumList free?

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

### Which has better reviews, Instacalc.com or iSumList?

Instacalc.com and iSumList are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

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

iSumList shows ads; Instacalc.com does not.

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

Instacalc.com ships an update every 2 weeks, and iSumList every 8 days. Most recently, Instacalc.com was updated on July 6, 2026 and iSumList on September 9, 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.*