# JT's Mathmory vs Grumpy Putt

The clearest difference is in-app purchases: JT's Mathmory at none against Grumpy Putt's 1. JT's Mathmory also leads on update cadence (every 9 days vs every 3 months) and device support (3 vs 1). Grumpy Putt's advantage is ads (none vs shown). On price and iOS requirement there is nothing between them.

Both are free to download. Grumpy Putt sells 1 one-off in-app purchase. JT's Mathmory asks for nothing beyond the download.

JT's Mathmory ships an update every 9 days, Grumpy Putt every 3 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | JT's Mathmory | Grumpy Putt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/jts-mathmory/id6752426087/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 33 MB | 51 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Johnie Rodgers](https://appshunter.io/developer/1542286519) | [Arnaud Manaranche](https://appshunter.io/developer/1801934517) |

## What reviewers say

### JT's Mathmory

[App page](https://appshunter.io/ios/app/jts-mathmory/id6752426087)

This game challenges your memory and math skills by presenting equations. You need to recall if the solution or the exact equation has appeared previously. It's a unique blend of arithmetic and recall.

**Highlights:** Equation presentation, Solution recall, Exact equation memory, Arithmetic challenges, Progressive difficulty

**Features:** macOS Compatibility

**In-app purchases:** none


### Grumpy Putt

[App page](https://appshunter.io/ios/app/grumpy-putt-daily-golf-puzzle/id6759795080)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Greenmaster License | $2.99 | one-time |


## Frequently asked questions

### Is JT's Mathmory free?

JT's Mathmory is free to download, with no in-app purchases.

### Is Grumpy Putt free?

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

### Do JT's Mathmory or Grumpy Putt have ads?

JT's Mathmory shows ads; Grumpy Putt does not.

### Which is updated more often, JT's Mathmory or Grumpy Putt?

JT's Mathmory ships an update every 9 days, and Grumpy Putt every 3 months. Most recently, JT's Mathmory was updated on November 5, 2026 and Grumpy Putt on October 31, 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.*