# CalcFlex vs EV365

The clearest difference is in-app purchases: EV365 at none against CalcFlex's 6. EV365 also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CalcFlex sells 3 one-off in-app purchases. EV365 asks for nothing beyond the download.

CalcFlex ships an update every 9 days, EV365 fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CalcFlex | EV365 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 2 MB | 88 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Chiu Loong Ng](https://appshunter.io/developer/1755978644) | [SSI SOLUTIONS COMPANY LIMITED](https://appshunter.io/developer/1852698650) |

## What reviewers say

### CalcFlex

[App page](https://appshunter.io/ios/app/calcflex-calculator/id6520389768)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +3 New Variables | $1.99 | one-time |
| +20 New Equation Slots | $1.99 | one-time |
| +1 New Calculator | $3.99 | one-time |


### EV365

[App page](https://appshunter.io/ios/app/ev365/id6755226158)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalcFlex free?

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

### Is EV365 free?

EV365 is free to download, with no in-app purchases.

### Do CalcFlex or EV365 have ads?

Neither CalcFlex nor EV365 shows ads.

### Which is updated more often, CalcFlex or EV365?

CalcFlex ships an update every 9 days, and EV365 fortnightly. Most recently, CalcFlex was updated on October 25, 2026 and EV365 on October 28, 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.*