# Simple Study Log vs Zeitgeist

The clearest difference is in-app purchases: Zeitgeist at none against Simple Study Log's 1. Zeitgeist 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. Simple Study Log sells 1 in-app purchase, starting at $0.99 per month. Zeitgeist asks for nothing beyond the download.

Simple Study Log ships an update every 2 weeks, Zeitgeist every 10 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Simple Study Log | Zeitgeist |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 3 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ishida yuto](https://appshunter.io/developer/1582923433) | [Daniel Neugebauer](https://appshunter.io/developer/6783915744) |

## What reviewers say

### Simple Study Log

[App page](https://appshunter.io/ios/app/simple-study-log/id6757193095)

This app helps you start studying faster with a minimalist timer and stopwatch. Track your sessions, view progress with charts, and utilize widgets and Siri for seamless integration into your routine. An optional premium upgrade removes ads and adds a calendar heatmap.

**Highlights:** Minimalist study timer, Stopwatch mode, Widget support, Lock Screen & Dynamic Island integration, Siri & Shortcuts automation, iCloud sync, Progress charts and stats

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $0.99 | per month |


### Zeitgeist

[App page](https://appshunter.io/ios/app/zeitgeist-promodoro-and-track/id6783915742)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Study Log free?

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

### Is Zeitgeist free?

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

### Do Simple Study Log or Zeitgeist have ads?

Simple Study Log shows ads; Zeitgeist does not.

### Which is updated more often, Simple Study Log or Zeitgeist?

Simple Study Log ships an update every 2 weeks, and Zeitgeist every 10 days. Most recently, Simple Study Log was updated on October 31, 2026 and Zeitgeist 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.*