# SLCalculation vs TriCalc

The clearest difference is in-app purchases: SLCalculation at none against TriCalc's 1. SLCalculation also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. TriCalc sells 1 one-off in-app purchase. SLCalculation asks for nothing beyond the download.

SLCalculation ships an update monthly, TriCalc fortnightly. The most recent releases landed on October 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SLCalculation | TriCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 19 MB | 23 MB |
| Requires iOS | 14.2 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [tsuyoshi saito](https://appshunter.io/developer/1530882113) | [Keita Ogasawara](https://appshunter.io/developer/1524965899) |

## What reviewers say

### SLCalculation

[App page](https://appshunter.io/ios/app/slcalculation/id1541116749)

**Features:** macOS Compatibility

**In-app purchases:** none


### TriCalc

[App page](https://appshunter.io/ios/app/tricalc-triangle-solver/id6762830339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is SLCalculation free?

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

### Is TriCalc free?

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

### Do SLCalculation or TriCalc have ads?

TriCalc shows ads; SLCalculation does not.

### Which is updated more often, SLCalculation or TriCalc?

SLCalculation ships an update monthly, and TriCalc fortnightly. Most recently, SLCalculation was updated on October 7, 2026 and TriCalc on September 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.*