# tinyCalc 3 vs Scientific Calculator & Units

The clearest difference is rating: Scientific Calculator & Units at 5.0 against tinyCalc 3's 3.3. Scientific Calculator & Units also leads on update cadence (weekly vs every 2 weeks). tinyCalc 3's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Scientific Calculator & Units sells 2 in-app purchases, starting at $1.99 per month. tinyCalc 3 asks for nothing beyond the download.

Scientific Calculator & Units holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: tinyCalc 3 has 6 ratings behind it against 1, so its average is the more settled of the two.

tinyCalc 3 ships an update every 2 weeks, Scientific Calculator & Units weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | tinyCalc 3 | Scientific Calculator & Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (6 ratings)](https://appshunter.io/ios/app/tinycalc-3/id919006147/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scientific-calculator-and-units/id6743020141/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 72.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 188 MB | 60 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael DiNicola](https://appshunter.io/developer/918904915) | [Moses Julius](https://appshunter.io/developer/1552879383) |

## What reviewers say

### tinyCalc 3

[App page](https://appshunter.io/ios/app/tinycalc-3/id919006147)

A customizable calculator app and widget for iPhone and iPad. It offers a full suite of functions in a minimalistic design, allowing users to focus on calculations. Widgets can be compact or fully displayed, and button configurations sync between the app and widget.

**Highlights:** Full-featured calculator app, Compact and expandable widget, Customizable buttons, Syncs app and widget configurations, Works without unlocking device, Copy/paste functionality, Shake to undo

**In-app purchases:** none


### Scientific Calculator & Units

[App page](https://appshunter.io/ios/app/scientific-calculator-and-units/id6743020141)

This app offers advanced scientific calculations, unit conversions, and AI-powered math problem solving. It includes everyday calculators, currency conversion, and detailed step-by-step solutions for various math subjects. Most features work offline for convenience.

**Highlights:** AI Math Solver with step-by-step solutions, Advanced Scientific Calculator, Extensive Unit Converter, Currency Converter with live rates, Everyday Calculators (EMI, BMI, etc.), History and Memory functions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| scientific calculator -Monthly | $1.99 | per month |
| scientific calculator -yearly | $14.99 | per year |


## Frequently asked questions

### Is tinyCalc 3 free?

tinyCalc 3 is free to download, with no in-app purchases.

### Is Scientific Calculator & Units free?

Scientific Calculator & Units is free to download, with in-app purchases available.

### Which has better reviews, tinyCalc 3 or Scientific Calculator & Units?

Scientific Calculator & Units is rated higher. tinyCalc 3 averages 3.3 out of 5 from 6 ratings, while Scientific Calculator & Units averages 5.0 from 1 ratings.

### Do tinyCalc 3 or Scientific Calculator & Units have ads?

Scientific Calculator & Units shows ads; tinyCalc 3 does not.

### Which is updated more often, tinyCalc 3 or Scientific Calculator & Units?

tinyCalc 3 ships an update every 2 weeks, and Scientific Calculator & Units weekly. Most recently, tinyCalc 3 was updated on October 24, 2026 and Scientific Calculator & Units on October 22, 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.*