# GrapNote vs Time Duration Calc

The clearest difference is update cadence: GrapNote at daily against Time Duration Calc's every 3 weeks. 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.

GrapNote ships an update daily, Time Duration Calc every 3 weeks. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | GrapNote | Time Duration Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 1 MB | 42 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RYU HARAGUCHI](https://appshunter.io/developer/1807075225) | [Stub Creator](https://appshunter.io/developer/1564442853) |

## What reviewers say

### GrapNote

[App page](https://appshunter.io/ios/app/grapnote/id6745224785)

**Features:** macOS Compatibility

**In-app purchases:** none


### Time Duration Calc

[App page](https://appshunter.io/ios/app/time-duration-calc-age-calc/id6748015355)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GrapNote free?

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

### Is Time Duration Calc free?

Time Duration Calc is free to download, with no in-app purchases.

### Do GrapNote or Time Duration Calc have ads?

Neither GrapNote nor Time Duration Calc shows ads.

### Which is updated more often, GrapNote or Time Duration Calc?

GrapNote ships an update daily, and Time Duration Calc every 3 weeks. Most recently, GrapNote was updated on October 11, 2026 and Time Duration Calc on October 8, 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.*