# NumFlow vs Fill the Jar

The clearest difference is in-app purchases: Fill the Jar at none against NumFlow's 4. Fill the Jar also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NumFlow sells 4 one-off in-app purchases. Fill the Jar asks for nothing beyond the download.

NumFlow ships an update every 4 days, Fill the Jar daily. The most recent releases landed on October 9, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | NumFlow | Fill the Jar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Daily** |
| Size | 8 MB | 152 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Ofluoglu](https://appshunter.io/developer/6794329369) | [Neurantra LLC](https://appshunter.io/developer/1895144924) |

## What reviewers say

### NumFlow

[App page](https://appshunter.io/ios/app/numflow-number-puzzle/id6812376955)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Hints | $4.99 | one-time |
| Remove Ads | $7.99 | one-time |
| 100 Hints | $8.99 | one-time |
| 300 Hints | $14.99 | one-time |


### Fill the Jar

[App page](https://appshunter.io/ios/app/fill-the-jar-shape-puzzle/id6813074285)

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

**In-app purchases:** none


## Frequently asked questions

### Is NumFlow free?

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

### Is Fill the Jar free?

Fill the Jar is free to download, with no in-app purchases.

### Do NumFlow or Fill the Jar have ads?

Both NumFlow and Fill the Jar show ads.

### Which is updated more often, NumFlow or Fill the Jar?

NumFlow ships an update every 4 days, and Fill the Jar daily. Most recently, NumFlow was updated on October 9, 2026 and Fill the Jar on October 29, 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.*