# JTR Calcs vs GO Lawton

The clearest difference is update cadence: GO Lawton at monthly against JTR Calcs's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JTR Calcs ships an update every 9 months, GO Lawton monthly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | JTR Calcs | GO Lawton |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Size | 1 MB | 132 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rex Harris](https://appshunter.io/developer/1709578578) | [GOGov, Inc.](https://appshunter.io/developer/351223719) |

## What reviewers say

### JTR Calcs

[App page](https://appshunter.io/ios/app/jtr-calcs/id6468682017)

**Features:** macOS Compatibility

**In-app purchases:** none


### GO Lawton

[App page](https://appshunter.io/ios/app/go-lawton/id6745883715)

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

**In-app purchases:** none


## Frequently asked questions

### Is JTR Calcs free?

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

### Is GO Lawton free?

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

### Do JTR Calcs or GO Lawton have ads?

Neither JTR Calcs nor GO Lawton shows ads.

### Which is updated more often, JTR Calcs or GO Lawton?

JTR Calcs ships an update every 9 months, and GO Lawton monthly. Most recently, JTR Calcs was updated on October 30, 2026 and GO Lawton 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.*