# CalReader vs Timestamp Marker

The clearest difference is review sentiment: Timestamp Marker at 100% against CalReader's 33%. Timestamp Marker also leads on price (Free vs $6.99) and update cadence (every 6 weeks vs every 4 months). CalReader's advantage is rating (4.3 vs 4.0) and ratings volume (3 vs 1). On ads, in-app purchases and device support there is nothing between them.

Timestamp Marker is free to download; CalReader costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CalReader holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews complicate that: 33% of CalReader's written reviews are positive against 100% of Timestamp Marker's, so the app with the better star average is not the one people write more warmly about.

CalReader ships an update every 4 months, Timestamp Marker every 6 weeks. Both last shipped on August 29, 2026.

## The numbers

| Metric | CalReader | Timestamp Marker |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/calreader-calender-logs/id405583558/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/timestamp-marker/id1567343282/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 16 MB | 2 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Imaja](https://appshunter.io/developer/405583561) | [Rod Bauer](https://appshunter.io/developer/868039735) |

## What reviewers say

### CalReader

[App page](https://appshunter.io/ios/app/calreader-calender-logs/id405583558)

Enhance your calendar's readability with customizable fonts and sizes. Easily filter events by date, calendar, or search terms, and export your data and time calculations in various formats like TEXT, CSV, or TSV. This tool is ideal for logging work or personal events and generating invoices.

**Highlights:** Customizable font and size, Event filtering by date, calendar, and text, TEXT, CSV, TSV export, Time calculation for billing, Siri Shortcuts integration, Dark Mode support

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

**In-app purchases:** none


### Timestamp Marker

[App page](https://appshunter.io/ios/app/timestamp-marker/id1567343282)

Instantly create and edit time markers with a single tap. Add events with or without titles, and view time elapsed since your last recorded event. Calculate time differences between selected markers, including future timestamps.

**Highlights:** Instant timestamp creation, Editable event titles and times, View time since last event, Calculate time between markers, Support for future timestamps, Batch deletion of events

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

**In-app purchases:** none


## Frequently asked questions

### Is CalReader free?

CalReader costs $6.99, with no in-app purchases.

### Is Timestamp Marker free?

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

### Which has better reviews, CalReader or Timestamp Marker?

CalReader is rated higher. CalReader averages 4.3 out of 5 from 3 ratings, while Timestamp Marker averages 4.0 from 1 ratings.

### Do CalReader or Timestamp Marker have ads?

Neither CalReader nor Timestamp Marker shows ads.

### Which is updated more often, CalReader or Timestamp Marker?

CalReader ships an update every 4 months, and Timestamp Marker every 6 weeks. Most recently, CalReader was updated on August 29, 2026 and Timestamp Marker on August 29, 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.*