# FastCalc lite vs e

The clearest difference is rating: FastCalc lite at 3.8 against e's 3.0. FastCalc lite also leads on ratings volume (15 vs 1) and review sentiment (67% vs 56%). e's advantage is iOS requirement (6.1 vs 26.0). On price, update cadence, 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.

FastCalc lite holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: FastCalc lite has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of FastCalc lite's written reviews are positive against 56% of e's.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | FastCalc lite | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (15 ratings)](https://appshunter.io/ios/app/fastcalc-lite/id432417448/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/e-calcfree/id591591892/reviews) |
| Number of ratings | **15** | 1 |
| Positive reviews | **66.7% of reviews** | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | Free |
| Size | 9 MB | 7 MB |
| Requires iOS | 26.0 | **6.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andre Ponzo](https://appshunter.io/developer/350419997) | [e-skett Corp.](https://appshunter.io/developer/591591895) |

## What reviewers say

### FastCalc lite

[App page](https://appshunter.io/ios/app/fastcalc-lite/id432417448)

This calculator app offers a streamlined experience with large, easy-to-use keys and a permanent display of your calculations. It automatically shows results as you type, eliminating the need for an equals button.

**Highlights:** Large, easy-to-read keys, Permanent expression display, Automatic result display, Gesture-based interface, Integrated help videos

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-calcfree/id591591892)

This scientific calculator supports engineering notation with prefixes like pico, nano, and mega. It offers a history feature to review past calculations and allows editing of formulas for recalculation. The free version has some limitations on history scrolling and saving.

**Highlights:** Scientific notation support, Engineering multipliers (p, n, u, m, k, M), History of past calculations, Editable formulas for recalculation, Unit conversion for engineering prefixes

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

**In-app purchases:** none


## Frequently asked questions

### Is FastCalc lite free?

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

### Is e free?

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

### Which has better reviews, FastCalc lite or e?

FastCalc lite is rated higher. FastCalc lite averages 3.8 out of 5 from 15 ratings, while e averages 3.0 from 1 ratings.

### Do FastCalc lite or e have ads?

Neither FastCalc lite nor e shows ads.

### Which is updated more often, FastCalc lite or e?

FastCalc lite ships an update every 5 months, and e every 5 months. Most recently, FastCalc lite was updated on October 3, 2026 and e on October 5, 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.*