# 100 hours vs InterCal

The clearest difference is review sentiment: 100 hours at 100% against InterCal's 0%. 100 hours also leads on iOS requirement (11.0 vs 17.0). InterCal's advantage is update cadence (every 5 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

100 hours ships an update every 3 months, InterCal every 5 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 100 hours | InterCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/intercal/id6744541491/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 21 MB | 11 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Andrew McKee](https://appshunter.io/developer/1503998635) | [Mohammad Reza Reghabi](https://appshunter.io/developer/1808074291) |

## What reviewers say

### 100 hours

[App page](https://appshunter.io/ios/app/100-hours/id1503998636)

Track progress on learning skills, adopting habits, or making changes. Visualize your journey by creating montages from your progress media. Get support from guides when motivation wanes.

**Highlights:** Skill tracking, Habit formation, Change tracking, Progress visualization, Media montages, Motivation support

**Features:** macOS Compatibility

**In-app purchases:** none


### InterCal

[App page](https://appshunter.io/ios/app/intercal/id6744541491)

Manage your schedule across both Persian (Shamsi) and Gregorian calendars with this beautifully designed app. It offers dual calendar display, event management with notifications, and a customizable interface with widgets. Enjoy offline access and a privacy-focused experience.

**Highlights:** Dual calendar display, Event management with notifications, Customizable themes and dark/light mode, Widget support, Offline access, Holiday tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is 100 hours free?

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

### Is InterCal free?

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

### Do 100 hours or InterCal have ads?

Neither 100 hours nor InterCal shows ads.

### Which is updated more often, 100 hours or InterCal?

100 hours ships an update every 3 months, and InterCal every 5 days. Most recently, 100 hours was updated on September 29, 2026 and InterCal on October 6, 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.*