# Calculator· vs SpecScan VIN Decoder

The clearest difference is ads: SpecScan VIN Decoder at none against Calculator·'s shown. SpecScan VIN Decoder also leads on update cadence (every 5 days vs every 3 months) and monetization model (free vs free with in-app purchases). Calculator·'s advantage is ratings volume (34K vs 1) and device support (4 vs 2). On price, rating, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Calculator· sells 3 in-app purchases, starting at $0.99 per month and SpecScan VIN Decoder sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Calculator· against 5.0 for SpecScan VIN Decoder. That said, the two scores are not equally well evidenced: Calculator· has 34K ratings behind it against 1, so its average is the more settled of the two.

Calculator· ships an update every 3 months, SpecScan VIN Decoder every 5 days. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Calculator· | SpecScan VIN Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (34K ratings)](https://appshunter.io/ios/app/calculator/id554836784/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/specscan-vin-decoder/id6800496761/reviews)** |
| Number of ratings | **34K** | 1 |
| Positive reviews | 84.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 42 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [SpecScan LLC](https://appshunter.io/developer/6800497213) |

## What reviewers say

### Calculator·

[App page](https://appshunter.io/ios/app/calculator/id554836784)

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

**Highlights:** Basic arithmetic operations, Percentage calculations, Multiple color schemes, Copy results, Square, square root, inverse functions, iPad Split View support, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade App | $0.99 | per month |
| Upgrade App | $4.99 | per year |
| Upgrade App | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick and responsive
- 💡 Percentage function works well
- 👍 Large, clear buttons
- 👍 Straightforward, no-frills design

**What reviewers complain about**

- 🔋 Frequent ads can be distracting
- 🐛 Occasional crashes or freezes
- 🔒 Lack of customization options
- 💡 No backspace/undo function
- 💡 Missing advanced features like memory

**Reported bugs**

- Crashes when performing long calculations
- Freezes when opening the app
- Incorrect results for some complex calculations

**Requested features**

- Add a backspace/undo button
- Implement a history/memory feature
- Provide more customization options
- Reduce frequency of ads


### SpecScan VIN Decoder

[App page](https://appshunter.io/ios/app/specscan-vin-decoder/id6800496761)

Instantly determine a car's real market value using its VIN. Decode year, make, model, and factory options, then compare against live dealer listings. Ideal for buyers, sellers, enthusiasts, and dealers.

**Highlights:** Real market value with confidence rating, Comparable listings with prices and links, Deal analysis and offer price suggestions, Factory options decoded from VIN, Buyer guidance and negotiation tips, VIN scanning via door-jamb barcode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpecScan Starter | $19.99 | per month |
| SpecScan Pro | $49.99 | per month |
| SpecScan Ultimate | $99.99 | per month |


## Frequently asked questions

### Is Calculator· free?

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

### Is SpecScan VIN Decoder free?

SpecScan VIN Decoder is free to download, with in-app purchases available.

### Which has better reviews, Calculator· or SpecScan VIN Decoder?

SpecScan VIN Decoder is rated higher. Calculator· averages 4.9 out of 5 from 34K ratings, while SpecScan VIN Decoder averages 5.0 from 1 ratings.

### Do Calculator· or SpecScan VIN Decoder have ads?

Calculator· shows ads; SpecScan VIN Decoder does not.

### Which is updated more often, Calculator· or SpecScan VIN Decoder?

Calculator· ships an update every 3 months, and SpecScan VIN Decoder every 5 days. Most recently, Calculator· was updated on October 13, 2026 and SpecScan VIN Decoder on October 4, 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.*