# StimuliApp vs How Much Do I Owe?

The clearest difference is update cadence: How Much Do I Owe? at every 2 days against StimuliApp's every 6 weeks. How Much Do I Owe? also leads on ratings volume (10 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for StimuliApp against 5.0 for How Much Do I Owe?. That said, the two scores are not equally well evidenced: How Much Do I Owe? has 10 ratings behind it against 1, so its average is the more settled of the two.

StimuliApp ships an update every 6 weeks, How Much Do I Owe? every 2 days. The most recent releases landed on September 9, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | StimuliApp | How Much Do I Owe? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/stimuliapp/id1497026540/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/how-much-do-i-owe/id6448764562/reviews) |
| Number of ratings | 1 | **10** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free | Free |
| Size | 10 MB | 26 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rafael Marin Campos](https://appshunter.io/developer/1497026539) | [Sharif Doghmi](https://appshunter.io/developer/1686251939) |

## What reviewers say

### StimuliApp

[App page](https://appshunter.io/ios/app/stimuliapp/id1497026540)

Create precise psychophysical tests on iOS devices without programming. Assess perceptual capabilities using various stimuli like images, sounds, and videos with synchronized visual and auditory output. Features include real-time preview and automatic report generation.

**Highlights:** Precise timing with Metal framework, 60 or 120 Hz test options, Synchronized visual and auditory stimulation, Interactive stimulus creation with preview, Automatic report generation, Gamma-correction features

**In-app purchases:** none


### How Much Do I Owe?

[App page](https://appshunter.io/ios/app/how-much-do-i-owe/id6448764562)

Effortlessly split restaurant bills, including tax and tip, proportionally based on individual order sizes. Ensures fair repayment to the host and prevents over or underpayment. Also useful for itemized shopping receipts and travel expenses.

**Highlights:** Proportional tax and tip splitting, Fair bill division based on order size, Accurate repayment calculation, Tip calculator included, Versatile for various expenses

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StimuliApp free?

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

### Is How Much Do I Owe? free?

How Much Do I Owe? is free to download, with no in-app purchases.

### Which has better reviews, StimuliApp or How Much Do I Owe??

StimuliApp and How Much Do I Owe? are both rated 5.0 out of 5 on the App Store, from 1 and 10 ratings respectively.

### Do StimuliApp or How Much Do I Owe? have ads?

Neither StimuliApp nor How Much Do I Owe? shows ads.

### Which is updated more often, StimuliApp or How Much Do I Owe??

StimuliApp ships an update every 6 weeks, and How Much Do I Owe? every 2 days. Most recently, StimuliApp was updated on September 9, 2026 and How Much Do I Owe? on June 11, 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.*