# Trigintuple Calc vs Flex Calculators

The clearest difference is in-app purchases: Trigintuple Calc at none against Flex Calculators's 1. Flex Calculators's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Flex Calculators sells 1 one-off in-app purchase. Trigintuple Calc asks for nothing beyond the download.

Trigintuple Calc ships an update every 2 weeks, Flex Calculators every 10 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Trigintuple Calc | Flex Calculators |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 37 MB | 37 MB |
| Requires iOS | 15.8.3 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [An Le](https://appshunter.io/developer/1863975090) |

## What reviewers say

### Trigintuple Calc

[App page](https://appshunter.io/ios/app/trigintuple-calc/id6742363481)

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

**In-app purchases:** none


### Flex Calculators

[App page](https://appshunter.io/ios/app/flex-calculators/id6761326502)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Trigintuple Calc free?

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

### Is Flex Calculators free?

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

### Do Trigintuple Calc or Flex Calculators have ads?

Trigintuple Calc shows ads; Flex Calculators does not.

### Which is updated more often, Trigintuple Calc or Flex Calculators?

Trigintuple Calc ships an update every 2 weeks, and Flex Calculators every 10 days. Most recently, Trigintuple Calc was updated on October 14, 2026 and Flex Calculators on October 16, 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.*