# AddCalculator vs Instant Memo

AddCalculator and Instant Memo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

AddCalculator ships an update every 5 days, Instant Memo every 4 days. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AddCalculator | Instant Memo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Minseong Kim](https://appshunter.io/developer/1707019155) | [joonseo park](https://appshunter.io/developer/1265149051) |

## What reviewers say

### AddCalculator

[App page](https://appshunter.io/ios/app/addcalculator/id6466179281)

This utility automatically sums numbers as you input them, streamlining quick calculations. Create custom buttons for frequently used values and review your calculation history. It offers undo/redo functionality and supports two color themes for a personalized experience.

**Highlights:** Automatic addition on number press, Customizable number buttons, Calculation history log, Undo and redo functionality, Dual color mode support

**Features:** macOS Compatibility

**In-app purchases:** none


### Instant Memo

[App page](https://appshunter.io/ios/app/instant-memo-notes-and-widgets/id6773642635)

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

**In-app purchases:** none


## Frequently asked questions

### Is AddCalculator free?

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

### Is Instant Memo free?

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

### Do AddCalculator or Instant Memo have ads?

Both AddCalculator and Instant Memo show ads.

### Which is updated more often, AddCalculator or Instant Memo?

AddCalculator ships an update every 5 days, and Instant Memo every 4 days. Most recently, AddCalculator was updated on October 4, 2026 and Instant Memo on October 16, 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.*