# noteSUM vs Verify Calculator

noteSUM and Verify Calculator 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. noteSUM sells 3 one-off in-app purchases and Verify Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

noteSUM ships an update monthly, Verify Calculator every 5 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | noteSUM | Verify Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 7 MB | 15 MB |
| Requires iOS | **14.0** | 15.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kazuhiro Sawamura](https://appshunter.io/developer/620439638) | [hiroshi mizuno](https://appshunter.io/developer/1742325047) |

## What reviewers say

### noteSUM

[App page](https://appshunter.io/ios/app/notesum/id1553539735)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Number of History records | $0.99 | one-time |
| Number of Favorites | $0.99 | one-time |
| Hide Ads | $2.99 | one-time |


### Verify Calculator

[App page](https://appshunter.io/ios/app/verify-calculator/id6499068707)

**In-app purchases (1)**

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


## Frequently asked questions

### Is noteSUM free?

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

### Is Verify Calculator free?

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

### Do noteSUM or Verify Calculator have ads?

Both noteSUM and Verify Calculator show ads.

### Which is updated more often, noteSUM or Verify Calculator?

noteSUM ships an update monthly, and Verify Calculator every 5 weeks. Most recently, noteSUM was updated on October 27, 2026 and Verify Calculator on October 25, 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.*