# Note Calculator vs Test Strip Scanner

The clearest difference is price: Test Strip Scanner at Free against Note Calculator's $0.99. Test Strip Scanner also leads on update cadence (every 5 days vs fortnightly). Note Calculator's advantage is rating (5.0 vs 3.2) and review sentiment (86% vs 50%). On ratings volume, ads, in-app purchases and iOS requirement there is nothing between them.

Test Strip Scanner is free to download; Note Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Note Calculator holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews point the same way: 86% of Note Calculator's written reviews are positive against 50% of Test Strip Scanner's.

Note Calculator ships an update fortnightly, Test Strip Scanner every 5 days. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Note Calculator | Test Strip Scanner |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/note-calculator-text-editor/id779230763/reviews)** | [3.2 (9 ratings)](https://appshunter.io/ios/app/test-strip-scanner/id6453356600/reviews) |
| Number of ratings | 4 | **9** |
| Positive reviews | **86.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Paid | **Free** |
| Size | 5 MB | 14 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [woojooin](https://appshunter.io/developer/529798258) | [Quentin Reiser](https://appshunter.io/developer/869093244) |

## What reviewers say

### Note Calculator

[App page](https://appshunter.io/ios/app/note-calculator-text-editor/id779230763)

This app allows you to perform calculations by writing equations in a text format, similar to a notebook. It supports variables, grouping, and saves your work as text files for easy sharing.

**Highlights:** Text-based calculation input, Supports variables and grouping, Saves calculations as text files, Easy sharing with other apps, Improved percentage calculations

**Features:** Vision Pro support

**In-app purchases:** none


### Test Strip Scanner

[App page](https://appshunter.io/ios/app/test-strip-scanner/id6453356600)

Easily read water test strip results by taking a photo. View and export charts of chemical readings over time. Ideal for those with visual impairments or limited patience.

**Highlights:** Scan test strip results with photos, Save and view readings, Export charts of chemical trends, Supports multiple popular water test strips, No account signup required

**In-app purchases:** none


## Frequently asked questions

### Is Note Calculator free?

Note Calculator costs $0.99, with no in-app purchases.

### Is Test Strip Scanner free?

Test Strip Scanner is free to download, with no in-app purchases.

### Which has better reviews, Note Calculator or Test Strip Scanner?

Note Calculator is rated higher. Note Calculator averages 5.0 out of 5 from 4 ratings, while Test Strip Scanner averages 3.2 from 9 ratings.

### Do Note Calculator or Test Strip Scanner have ads?

Neither Note Calculator nor Test Strip Scanner shows ads.

### Which is updated more often, Note Calculator or Test Strip Scanner?

Note Calculator ships an update fortnightly, and Test Strip Scanner every 5 days. Most recently, Note Calculator was updated on September 17, 2026 and Test Strip Scanner on September 23, 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.*