# 1Calc vs Time Keeper

The clearest difference is in-app purchases: Time Keeper at none against 1Calc's 3. Time Keeper also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. 1Calc sells 3 in-app purchases, starting at $0.99 per month. Time Keeper asks for nothing beyond the download.

## The numbers

| Metric | 1Calc | Time Keeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Size | 6 MB | 25 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Asim Roy](https://appshunter.io/developer/1703408134) | [Gl Financial Inc.](https://appshunter.io/developer/1823352623) |

## What reviewers say

### 1Calc

[App page](https://appshunter.io/ios/app/1calc-one-calculator/id6502853473)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $3.99 | per year |
| Lifetime | $8.99 | one-time |


### Time Keeper

[App page](https://appshunter.io/ios/app/time-keeper-pro/id6753611275)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 1Calc free?

1Calc is free to download, with in-app purchases available.

### Is Time Keeper free?

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

### Do 1Calc or Time Keeper have ads?

1Calc shows ads; Time Keeper does not.

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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.*