# Not a Topo vs Grimp

The clearest difference is in-app purchases: Grimp at none against Not a Topo's 2. Grimp also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 weeks). Not a Topo's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Not a Topo sells 2 in-app purchases, starting at $2.49 per month. Grimp asks for nothing beyond the download.

Not a Topo ships an update every 6 weeks, Grimp every 3 weeks. The most recent releases landed on May 16, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Not a Topo | Grimp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 98 MB | 112 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Optimized Data Science](https://appshunter.io/developer/1523049904) | [Edgar Clerc](https://appshunter.io/developer/1776810092) |

## What reviewers say

### Not a Topo

[App page](https://appshunter.io/ios/app/not-a-topo/id1553844102)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.49 | per month |
| 7 day Not a Topo subscription | $5.99 | one-time |


### Grimp

[App page](https://appshunter.io/ios/app/grimp/id6737510541)

This app helps climbers track their progress, analyze performance, and optimize their training. It offers personalized grade predictions, tools to design and share climbing walls, and detailed logging of every climb. Users can monitor growth through various climbing statistics and access daily training routines or create their own.

**Highlights:** Personalized grade prediction, Spray Wall for designing/sharing routes, Log every climb with details, Track progress and climbing stats, Daily training and custom workouts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Not a Topo free?

Not a Topo is free to download, with in-app purchases available.

### Is Grimp free?

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

### Do Not a Topo or Grimp have ads?

Not a Topo shows ads; Grimp does not.

### Which is updated more often, Not a Topo or Grimp?

Not a Topo ships an update every 6 weeks, and Grimp every 3 weeks. Most recently, Not a Topo was updated on May 16, 2026 and Grimp on September 3, 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.*