# Numbla vs Simple Gradebook

The clearest difference is in-app purchases: Numbla at none against Simple Gradebook's 1. Simple Gradebook's advantage is update cadence (every 4 days vs every 3 months) and iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Simple Gradebook sells 1 one-off in-app purchase. Numbla asks for nothing beyond the download.

Numbla ships an update every 3 months, Simple Gradebook every 4 days. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Numbla | Simple Gradebook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 16 MB | 25 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alistair Shaw](https://appshunter.io/developer/959356999) | [Jory Cooper](https://appshunter.io/developer/951259993) |

## What reviewers say

### Numbla

[App page](https://appshunter.io/ios/app/numbla/id1076197959)

A math-based game challenges players to identify multiples of a given number by selecting connected tiles. Progress through increasingly difficult levels with more tiles and complex numbers before the timer expires. Correctly identified tiles disappear, making way for new ones.

**Highlights:** Identify multiples of numbers, Select touching tiles, Timed gameplay, Increasing difficulty levels, New tiles fall after matches

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

**In-app purchases:** none


### Simple Gradebook

[App page](https://appshunter.io/ios/app/simple-gradebook/id6476517991)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gradebook Premium | $12.99 | one-time |


## Frequently asked questions

### Is Numbla free?

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

### Is Simple Gradebook free?

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

### Do Numbla or Simple Gradebook have ads?

Neither Numbla nor Simple Gradebook shows ads.

### Which is updated more often, Numbla or Simple Gradebook?

Numbla ships an update every 3 months, and Simple Gradebook every 4 days. Most recently, Numbla was updated on October 24, 2026 and Simple Gradebook on October 4, 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.*