# OpenTime vs Markflow

The clearest difference is price: Markflow at Free against OpenTime's $0.99. OpenTime's advantage is update cadence (every 2 days vs fortnightly). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Markflow is free to download; OpenTime costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for OpenTime against 5.0 for Markflow. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

OpenTime ships an update every 2 days, Markflow fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OpenTime | Markflow |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/opentime/id6760204246/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/markflow-markdown-reader/id6763440990/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Paid | **Free** |
| Size | 4 MB | 7 MB |
| Requires iOS | 26.2 | **26.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [james tannahill](https://appshunter.io/developer/1883186220) | [Santiago Alonso Alexandre](https://appshunter.io/developer/1880565729) |

## What reviewers say

### OpenTime

[App page](https://appshunter.io/ios/app/opentime/id6760204246)

Quickly find your open time slots by analyzing your device calendars. This app offers flexible date range views, slot duration selection, and convenient sharing options without requiring accounts or tracking your data.

**Highlights:** View free/busy slots for any date range, Slot duration picker with chip subdivision, Quick sharing of daily availability, Customizable appearance (light/dark/system), Pinned queries for one-tap access, Home screen widgets and Live Activities, Apple Watch companion app

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Markflow

[App page](https://appshunter.io/ios/app/markflow-markdown-reader/id6763440990)

This app allows you to open and read markdown files from various sources like Files, Mail, and Safari. It supports GitHub-flavored markdown, code syntax highlighting, and diagrams, with an integrated editor and a clean preview mode.

**Highlights:** Open .md, .markdown, .mdown files, GitHub-flavored markdown rendering, Syntax-highlighted code blocks, Mermaid diagram support, Markdown editing toolbar, Pinch to zoom, Export edited files

**In-app purchases:** none


## Frequently asked questions

### Is OpenTime free?

OpenTime costs $0.99, with no in-app purchases.

### Is Markflow free?

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

### Which has better reviews, OpenTime or Markflow?

OpenTime and Markflow are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do OpenTime or Markflow have ads?

Neither OpenTime nor Markflow shows ads.

### Which is updated more often, OpenTime or Markflow?

OpenTime ships an update every 2 days, and Markflow fortnightly. Most recently, OpenTime was updated on November 5, 2026 and Markflow 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.*