# Flex Haifa vs TennisKeeper

The clearest difference is in-app purchases: Flex Haifa at none against TennisKeeper's 1. Flex Haifa also leads on iOS requirement (15.1 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. TennisKeeper sells 1 one-off in-app purchase. Flex Haifa asks for nothing beyond the download.

## The numbers

| Metric | Flex Haifa | TennisKeeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 50 MB | 22 MB |
| Requires iOS | **15.1** | 26.4 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 9+ | 4+ |
| Developer | [Arbox LTD](https://appshunter.io/developer/1021244486) | [Mustafa Haveydi](https://appshunter.io/developer/1896568383) |

## What reviewers say

### Flex Haifa

[App page](https://appshunter.io/ios/app/flex-haifa/id6447832929)

**In-app purchases:** none


### TennisKeeper

[App page](https://appshunter.io/ios/app/tenniskeeper/id6768398967)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TennisKeeper | $5.99 | one-time |


## Frequently asked questions

### Is Flex Haifa free?

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

### Is TennisKeeper free?

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

### Do Flex Haifa or TennisKeeper have ads?

Neither Flex Haifa nor TennisKeeper shows ads.

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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.*